Note: Descriptions are shown in the official language in which they were submitted.
WO 2022/203974
PCT/US2022/021054
CEILING FIXTURE ACCESSIBILITY DEVICE
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority to U.S. Provisional Application No.
63/163,787
filed March 20, 2021, the entirety of which is incorporated by reference
herein.
FIELD OF THE INVENTION
The present invention provides a remote-controlled, retractable accessibility
device for ceiling and wall fixtures, such as for lighting fixtures, ceiling
fans, and other
electrical devices, and the like. The device allows for the raising and
lowering of the
fixture via a wireless control. The core of the device is a winch system
contained in a
housing, which, via a motorized pulley array, allows for the lowering and
raising of the
fixture. The device is designed with male/female electrical
connectors that
automatically disengage to cut off the flow of electricity when the fixture is
lowered so
that the fixture can be safely accessed when in the lowered position and
automatically
engage to restore the flow of electricity when raised.
BACKGROUND OF THE INVENTION
In the home, business, and other environments, there are many electrical
fixtures
located on ceilings, walls, and other structures where they are out of arm's
reach for
servicing, maintenance, and cleaning. These fixtures include lighting
fixtures, ceiling
fans, speakers, monitors, mobiles, displays, artistic creations, and such. A
common
problem is the maintenance and cleaning of these fixtures, such as the
replacement of a
light bulb in a lighting fixture or the removal of dust from the blades of a
ceiling fan.
Maintenance and cleaning can be inconvenient, and even hazardous, if special
equipment and tall ladders are required. Furthermore, there are potential
electrical
hazards if the maintenance is performed on a "hot" fixture if the electrical
supply has not
1
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
been cut off from the fixture. These problems are further compounded when
there are
multiple fixtures to deal with, particularly in a commercial or office
setting.
The present solutions to these maintenance and cleaning challenges are not
ideal. For example, one could attempt to handle the maintenance and cleaning
oneself
and assume the risk of injury from falls and contact with live electrical
components.
Alternatively, one could purchase or rent expensive accessibility equipment
such as
scaffolds, special ladders, and motorized cherry pickers. Yet alternatively,
one could
hire a professional to perform the maintenance and cleaning, often at
significant
expense and on the time schedule of the professional.
Various solutions for solving these maintenance and cleaning challenges have
been proposed. See, for example, US Patent No. 8,348,215, to Smith, issued
January
8, 2013; US Patent Application Publication No. 2012/0305731, to Yearsley,
published
December 6, 2012; US Patent Application Publication No. 2010/0227499, to Ramos
et
al., published September 9, 2010; US Patent Application Publication No.
2008/0193291,
to Ware, published August 14, 2008; and US Patent Application Publication No.
2006/0114681, to Wang, published June 1, 2006. However, these solutions are
not
fully acceptable for providing a safe and convenient means for maintenance and
cleaning.
Moreover, the mounting of a fixture on a non-horizontal or angled surface
prevents additional challenges for which previously proposed solutions are
inadequate.
For example, the above-mentioned US Patent No. 8,348,215 would require the
user to
provide an external swivel arm to properly align stationary and moveable
components.
Another solution as disclosed in US Pat. Publ. No. 2012/0305731 would be
applicable
to only a narrow range of angled installations and further requires the use of
a
complicated and expensive clutch mechanism.
The present invention overcomes the disadvantages and limitations of other
proposed solutions and provides an accessibility device for safe, convenient,
and cost-
effective means to service, maintain, and clean a wide array of normally
inaccessible
2
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
ceiling and wall fixtures. Furthermore, these devices are adaptable for both
new
construction installation as well as for aftermarket installation to modify
existing fixtures.
SUMMARY OF THE INVENTION
The present invention provides a remote-controlled, descendable and
retractable
accessibility device for ceiling and wall fixtures.
In certain embodiments, the present invention provides an electrical fixture
accessibility device comprising: a stationary component that attaches to [is
capable of
affixing to] an electrical junction box on a ceiling, wall, or other structure
[supporting
structure], the stationary component including at least one support cable that
winds
around a rotatable, motor-driven spool capable of extending and retracting the
support
cable, one or more power terminals electrically connected to a power supply,
and one or
more power connectors connected to the one of more power terminals; and a
moveable
component that attaches to the electrical fixture, the moveable component
including one
or more power contacts [pads] configured to both connect electrically with and
disengage from the power connectors;
wherein the moveable component is connected to the at least one support cable
and is moveable between (i) a docked state in which the cable is retracted [in
the
docked state the cable is typically fully retracted] and the moveable
component is
engaged physically and electrically with the stationary component and (ii) an
undocked
state in which the cable is extended [the cable can be partially or fully
extended in some
use instances] and the moveable component is physically and electrically
disengaged
from the stationary component, and
wherein the moveable component supplies power to the electrical fixture only
when in said docked state.
In another aspect, the present invention provides the accessibility device
wherein
the power connectors of the stationary component are elastically deformable
[compressible].
3
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
In another aspect, the present invention provides the accessibility device
wherein
the contacts of the moveable component are contacts [pads] that make contact
with
[can touch] the connectors, which can be elastically deformable.
In another aspect, the present invention provides the accessibility device
wherein
the elastically deformable power connectors of the stationary component are
springs
that electrically connect with [make electrical contact with] the power
connector pads of
the moveable component when the moveable component and the stationary
component
are in the docked state.
In another aspect, the present invention provides the accessibility device
further
comprising one or more safety lock mechanisms that hold [secure] the moveable
component and the stationary component when in the docked state.
In another aspect, the present invention provides the accessibility device,
wherein the one or more safety lock mechanisms comprise one or more piston
mechanisms on the stationary component and a corresponding number of mating
receptacles [e.g., orifices or recesses] on the moveable component.
In another aspect, the present invention provides the accessibility device
wherein
the motor is a reversible motor [capable of operating or driving in both
directions].
In another aspect, the present invention provides the accessibility device
further
comprising a belt wherein the belt mechanically couples the reversible motor
and the
one or more spools [wherein the belt drives and rotates the spools in the
desired
direction based upon the direction of torque provided by the reversible
motor.]
In another aspect, the present invention provides the accessibility device
wherein
the power supply is located in the electrical junction box.
In another aspect, the present invention provides the accessibility device
further
comprising a control unit configured to instruct the motor-driven spool to
unwind, wind,
or halt the support cable.
4
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
In another aspect, the present invention provides the accessibility device
further
comprising a proximity sensor that signals the control logic when the moveable
component is proximate to the stationary component.
In another aspect, the present invention provides the accessibility device
further
comprising a control unit configured to instruct the motor-driven spool to
unwind, wind,
or halt the support cable and to engage or disengage the piston from the
receptacle.
In another aspect, the present invention provides the accessibility device
further
comprising a proximity sensor that signals the control logic when the moveable
component is proximate to the stationary component.
In another aspect, the present invention provides the accessibility device
wherein
the electrical fixture is selected from one or more of the group consisting of
a lighting
fixture, a fan, a mobile, a speaker, a microphone, a monitor, a video monitor,
a
television, a surveillance camera, a safety device, a fire detector, a smoke
detector, a
carbon monoxide detector, an oxygen detector, a noxious gas detector, a heat
detector,
a cold detector, a gauge, a communication device, a temperature measuring
device,
and combinations of the foregoing.
In another aspect, the present invention provides the accessibility device
wherein
the electrical fixture is a lighting fixture.
In another aspect, the present invention provides the accessibility device
wherein
the electrical fixture is a fan.
In another aspect, the present invention provides the accessibility device
wherein
the electrical fixture is a combination lighting fixture and fan.
In another aspect, the present invention provides the accessibility device
wherein
the electrical power is AC power.
In another embodiment, the present invention provides an electrical fixture
accessibility system comprising:
5
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
A. a stationary component that attaches to [is capable of affixing to] an
electrical
junction box on a ceiling, wall, or other structure [supporting structure],
the stationary
component including at least one support cable that winds around a rotatable,
motor-
driven spool capable of extending and retracting the support cable, one or
more power
terminals electrically connected to a power supply located in the electrical
junction box,
one or more power connectors connected to the one of more power terminals, and
a
control unit;
B. a moveable component that attaches to the electrical fixture, the moveable
component including one or more power contacts [pads] configured to both
connect
electrically with and disengage from the power connectors,
wherein the moveable component is connected to the at least one support cable
and is moveable between (i) a docked state in which the cable is retracted [in
the
docked state the cable is typically fully retracted] and the moveable
component is
engaged physically and electrically with the stationary component and (ii) an
undocked
state in which the cable is extended [the cable can be partially or fully
extended in some
use instances] and the moveable component is physically and electrically
disengaged
from the stationary component, and
wherein the moveable component supplies power to the electrical fixture only
when in said docked state; and
C. a remote control [user operable] to operate the motor-driven spool to lower
or
raise the moveable component between the docked state and the undocked state.
In another aspect, the present invention provides the accessibility system
wherein the remote control is [user operable] and configured to transmit a
fixture-
identifying code to the control unit such that when said code matches the user-
programmed fixture-identifying code, the motor-driven spool is rotated so as
to either (i)
descend the support cable and moveable component to facilitate user access of
the
electrical fixture or (ii) retract the support cable so as to raise the
moveable component
into the docked state with the stationary component and supply electrical
power to the
electrical fixture.
In yet another embodiment, the present invention provides a method of enabling
access to an electrical fixture comprising using the aforementioned electrical
fixture
6
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
accessibility device to access an electrical fixture when the device is in the
undocked
state.
In another aspect, the present invention provides the method of enabling
access
to an electrical fixture comprising using the aforementioned electrical
fixture accessibility
system when the system is in the undocked state.
These and other aspects of the present invention will become apparent from the
disclosure herein.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a cross-sectional view of an embodiment of the ceiling fixture
accessibility device disclosed herein with the stationary component and the
moveable
component connected physically and electrically in a docked state.
FIG. 2 is a cross-sectional view of an embodiment of the ceiling fixture
accessibility device disclosed herein with the stationary component and the
moveable
component disconnected physically and electrically in an undocked state.
FIG. 3A is a cross-sectional view of the embodiment along direction 3A as
shown
in FIG. 1.
FIG. 3B is an enlarged partial view of FIG. 3A.
FIG. 4A is a cross-sectional view of the embodiment of the stationary
component
along direction 4A as shown in FIG. 2. Note that the depth of the various
levels of the
stationary component are illustrated with radially drawn shading lines.
FIG. 4B is an enlarged partial view of FIG. 4A.
FIG. 5 is an exploded cross-sectional view of the embodiment of FIG. 2 showing
an access plate and three plate retaining screws removed so as to permit user
access
to the stationary component.
7
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
FIG. 6 is a cross-sectional view of an embodiment of the ceiling fixture
accessibility device disclosed herein mounted on a non-horizontal surface with
the
device in an undocked state.
FIG. 7 is a partial cross-sectional view of the embodiment of FIG. 2 showing
in
detail mounting screws that physically connect the stationary component to a
ceiling
junction box.
FIG. 8 is an exploded perspective view of the connection of the stationary
component to the ceiling junction box and the connection of the ceiling
junction box to a
ceiling joist.
FIG. 9 is an electrical schematic of an embodiment of the ceiling fixture
accessibility device disclosed herein.
FIGS. 10A and 10B are front and back views, respectively, of an embodiment of
a wireless remote-control device for controlling a single ceiling fixture
accessibility
device.
FIGS. 11A and 11B are front and back views, respectively, of an embodiment of
a wireless remote-control device for controlling up to eight ceiling fixture
accessibility
devices.
FIGS. 12A and 12B are front and side views, respectively, of a hardwired
control
device for controlling a single ceiling fixture accessibility device.
FIG. 13 shows a further alternative embodiment of an aftermarket version of
the
device showing the device connected to an already existing electrical junction
box on a
ceiling. The device is shown further connected to a light, ceiling fan, or
other fixture.
FIG. 14 shows a further alternative embodiment of an original construction
version of the device showing the device attached to ceiling joists with
adjustable
brackets. The device is in a docked state with the moveable component in its
fully
retracted position with its bottom surface flush or close to flush with the
ceiling surface.
Flashing is shown attached to the moveable component.
8
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
FIG. 15 is a cross-sectional view of an embodiment of the device in a docked
state on a ceiling or other out-of-reach surface. This embodiment shows two
cables for
lowering and raising the moveable component, which are each wound around a
spool or
drum that is electrically powered and controlled remotely. Also, shown is a
power
connection from the stationary component to the moveable component via male
and
female electrical connectors that automatically disconnect when the moveable
component is in an undocked state, i.e., lowered from the ceiling, and
automatically
reconnect when the moveable component is docked to the stationary component.
The
positions of any pair of male and female connectors can be reversed.
FIG. 16 shows a cross-section of FIG. 15 with the moveable component and
associated fixture in a lowered position for access to the fixture. The
fixture is shown as
disconnected from the power supply when in a lowered position, i.e. an
undocked state.
FIG. 17 shows an embodiment of male and female connectors which can provide
for adjustments based on angled orientation of the device, for example when
the device
is mounted on a non-level ceiling or angled surface. The male and female
connectors
are shown on the moveable component and stationary component, respectively,
and
can optionally be reversed. That is to say, the male connectors may
alternatively be
disposed on the stationary component and the female connectors may
alternatively be
disposed on the stationary component. The female connector is shown on a
straight
stationary track and is slidably adjustable. The male connector is shown on a
grooved
track to allow for a plurality of angular adjustments.
FIG. 18 shows a cross-section of an embodiment comprising the male and
female connectors of FIG. 17. The moveable component is shown in a lowered
position
(undocked state).
FIG. 19 shows an embodiment of a piston-post piston-activated safety
mechanism for disengaging and reengaging the components of the device. The
safety
mechanism can be incorporated into any embodiment to secure the stationary
component to the moveable component in its docked state.
9
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
FIGS. 20A shows a top view and FIGS. 20B and 20C show cross-sectional views
of an embodiment with a moveable component comprising a recessed light. The
embodiment utilizes concentric circular electrodes such that the moveable
component
can be retracted in any rotational position. The concentric electrodes may be
spring-
loaded as shown in the embodiment.
FIG. 21 shows a cross-sectional view of a different version of the embodiment
shown in FIG. 20 having a light fixture attached to the bottom of the moveable
component.
FIG. 22 shows an OEM (original equipment manufacturer) embodiment excluding
a moveable component and having the electrical connectors and cables attached
directly to a fan or other fixture.
FIG. 23 shows a cross-section of the device of FIG. 18 further including the
piston-activated safety mechanism shown in FIG. 19.
DETAILED DESCRIPTION OF THE INVENTION
The present invention provides for both directly wired and remote-controlled,
retractable accessibility devices for ceiling and wall electrical fixtures and
those
attached to other structural surfaces, such as for lighting fixtures, fans,
ceiling fans,
mobiles, speakers, microphones, monitors, video monitors, televisions,
surveillance
cameras, safety devices, fire detectors, smoke detectors, carbon monoxide
detectors,
oxygen detectors, noxious gas detectors, heat detectors, cold detectors,
gauges,
communication devices, and temperature measuring devices. Also, the invention
provides for accessing combinations of fixtures, such as a combination light
and fan
fixture.
It is contemplated that the accessibility devices of the present invention
would be
modified accordingly to accommodate different mounting and connection
requirements
or characteristics which can vary depending upon the electrical fixture one
would want
to be able to access with the installation and use of this device. For
example, a lighting
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
fixture could have different requirements or characteristics, versus a ceiling
fan, versus
a speaking, etc.
The devices allow for the raising and lowering of a fixture via wireless or
hardwired control. The devices may comprise one or more modules that enable
wireless
communication and/or winch control. Examples of the control can include a Wi-
Fi/Bluetooth enabled mobile app (application) or a handheld radio control. The
core of
the device comprises a winch system concealed in a housing which, via a cable
that
winds or unwinds around a motorized pulley, spool, reel, or the like, lowers
and raises
the fixture. The device also may comprise a stabilizing system to maintain the
fixture
essentially level and to prevent rotation and twisting of the fixture as it is
lowered and
raised.
The device is designed with mating electrical connections that automatically
disengage and reengage to cut off the flow of electricity when the fixture is
lowered and
raised. This automatic cut-off of electricity to the fixture is an important
safety feature so
that the fixture can be safely accessed without a shock hazard. One embodiment
of
these connectors is an electrical connector, such as a deformable electrical
connector,
such as a spring or spring-loaded connector, provided on one surface and a
corresponding contact or pad provided on an opposing surface. As is explained
below,
a deformable electrical connector and corresponding contact or pad are
advantageous
because they will be able to engage and form an electrical connection over a
wide
range of orientations.
The device can be constructed in various forms. For example, the device can be
an aftermarket device that can be connected to an existing ceiling- or wall-
mounted
electrical junction box of standard size and shape to convert a stationary
electrical
fixture (e.g., a light, fixture, ceiling fan, etc.) into a moveable and
accessible fixture. In
alternative embodiments the device can be designed as an original construction
device,
with an incorporated electrical junction box for installing an electrical
fixture so that it is
moveable and accessible, or as an OEM [original equipment manufacturer]
device.
11
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
The aftermarket version of the device will allow for the device to be attached
to
and incorporated into an originally installed junction box in the ceiling or
wall, etc.. The
device can comprise a decorative cover or veneer for aesthetic purposes. The
fixture
would then attach to the device. The junction box must at least be compliant
with
National Electric Code 314.27 regarding supportable weight.
Alternatively, the version of the device designed for original construction is
designed such that the device itself is integrated into a junction box and
comprises the
overall device. This overall device that is integrated into a junction box is
readily
installed to supporting features such as ceiling joists, studs, posts, or
other appropriate
structural features. In this case, there is no need for a traditional junction
box as the
device incorporates both the junction box to which the building electrical
supply will be
attached as well as the device itself to which the fixture will be attached.
Alternatively, the version of the device for OEM applications includes lights,
fixtures, fans, etc. that have the appropriate electrical connectors and
cable/winch
attachments to electrically and releasably engage with the stationary base
component
directly.
Alternatively, the device may be constructed with more than one junction box
and
may combine, for example, an original construction junction box for connection
to a
fixture with an aftermarket ceiling junction box that is supplied with
electric power and
has been affixed to support joists or the like.
Definitions
As used herein, the following terms and abbreviations have the indicated
meanings unless expressly stated to the contrary.
The term "standard" as used herein in reference to an electrical junction box
means a ceiling junction box of substantially rectangular or circular shape
and size as is
commonly used in the construction industry.
The term "descendable" (alternatively spelled "descendible") as used herein
means that the device provides for lowering or descending of the fixture.
12
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
The term "ergonomic" is used herein is intended to have its common meaning
indicating relating to or designed for efficiency and comfort in the user
environment.
The terms "multi-positionable" and "multi-positional" as used herein mean that
the device can be oriented and used so that the fixture can be located in
different
positions by a user as desired.
The term "fixture" is used herein to include a wide range of electrical
products
such as lighting fixtures, fans, ceiling fans, mobiles, speakers, microphones,
monitors,
video monitors, televisions, surveillance cameras, safety devices such as fire
detectors,
smoke detectors, carbon monoxide detectors, oxygen detectors, noxious gas
detectors,
heat detectors, and cold detectors, etcetera, gauges, communication equipment,
and
temperature measuring devices. The term "fixture" is intended to include any
kind of
electrical device that can be mounted on a ceiling, wall, post, overhang,
rafter, eave, or
other structural location that is not completely vertical where more ready and
convenient
access of the fixture is desired.
The term "retractable" as used herein means that the device provides for
raising
or retracting the fixture back to its docked position on a ceiling, wall, or
other structural
feature.
The term "wall" as used herein is used in its standard terminology to describe
the
side of a room, building or structure and means an upright y structure that
encloses,
divides, or protects an area.
The term "ceiling" as used herein is used in its standard terminology. That is
to
say, the term "ceiling" as used herein refers to the upper surface of a room,
compartment, or overhead structure. Ceilings include flat ceilings
(essentially horizonal
and parallel to a floor) as well as vaulted or cathedral ceilings.
As used herein, "infinitely adjustable" means that a component is continuously
adjustable across a smooth continuum of positions across the entire mechanical
limit of
the adjustment. In some embodiments, one or more pre-marked adjustments may be
present and a component may be infinitely or continuously adjustable both in-
between
13
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
the one or more pre-marked adjustments and in-between the entire mechanical
limit of
the adjustment.
Ceiling, Wall, and other Structural Fixture Accessibility Device
The present invention provides an ergonomic, descendable and retractable
device for providing access to a fixture for maintenance, servicing, cleaning,
and other
purposes. Although the terms ceiling and wall are used herein with respect to
the
fixture, the present invention contemplates that the fixture can be located on
a wide
range of structural features including posts, beams, overhangs, rafters,
eaves, trusses,
scaffolding, catwalks, walkways, etc. In other words, the device can be used
for
providing safe and convenient access to fixtures that are not readily
accessible to or are
out of arm's reach to a user when the user is located on a ground surface or
is
otherwise located such that ready access to the fixture is not available.
Many available devices are limited in the range of adjustments and positions
that
can be achieved. Also, many devices do not have the safety feature of
automatically
disconnecting the electrical circuit to the device when it is lowered.
Furthermore, many
devices do not provide a stabilizing, leveling, or anti-twisting means to
prevent the
fixture from unwanted tipping or rotation as it is extended from and retracted
from the
ceiling, wall, or other structure.
To address these limitations, the present invention provides a descendable and
retractable device for lowering and raising a fixture from a ceiling wall or
other
inaccessible supporting structure.
Cables
Cables, capable of supporting the weight of the descendable/ascendable
moveable component and any attached fixture are attached on one end to a
spool. A
belt connected to a reversible motor drives the belt to rotate the spools. The
cable winds
or unwinds about the spools according to the direction of rotation. The other
end of the
14
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
cable (the end not attached to a spool) passes through an elbow shaped guide
and is
attached to a moveable component below. Winding or unwinding the cables about
the
spools will cause the fixture and the moveable component to be rise or
descend. The
cables may be constructed of any suitable material that provides sufficient
strength for
supporting and lifting the moveable component and fixture, and sufficient size
and
flexibility for winding and unwinding around spools.
Drive Mechanism
Some embodiments may comprise one or more motorized spools of cable
attached to both the stationary component and the moveable component to lower
and
raise the moveable component and thereby lower and raise the electrical
fixture. The
motorized spools of cable may be alternatively denoted as winches, winch
systems,
motorized reels, and the like. Various motor designs can be employed to unwind
and
wind the spools of wire to control the movement of the moveable or descendable
portion
of the base unit. Some embodiments employing continuous or semi-continuous
concentric electrodes may comprise a single spool. Some of the embodiments
below
are described as having three spools and cables because of the good stability
(anti-
tipping and anti-torquing) performance such a configuration provides. Needless
to say,
other embodiments having a fewer or greater number of spools and cables are
contemplated.
The motorized spools or winches may be powered directly by the power source
[e.g., AC power] and may be controlled by one or more spool control modules.
The one
or more spool control modules may be controlled by one or more wireless or
wired
communication modules. In some embodiments, the wireless communication and
spool
control aspects may be performed by a single module. In some embodiments,
wireless
communication and/or spool control modules may comprise a DC converter or may
be
supplied with DC power from a DC converter. In some embodiments, the motorized
spools or winches are supplied with DC power from an incorporated or external
converter. In some embodiments the motorized spools or winches may be driven
by belt
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
connected to a motor. It can be appreciated that any means to power the spools
and to
control the spools wirelessly or by hardwired control are contemplated. The
motorized
spools or winches may comprise one or more locking or braking mechanisms so
that
the moveable component is held in place when fully retracted. In some
embodiments,
the one or more locking mechanisms may be disengaged to allow the moveable
component to be lowered. In some embodiments, the locking mechanisms may
comprise one or more actuation components that are electrically controlled by
the
wireless communication and/or spool control modules. It can be appreciated
that any of
the control, communication, or power features can be incorporated into any
number of
modules or can be incorporated directly into the motorized spools or winches.
In some
embodiments, the motorized spools or winches and optional locking or braking
mechanisms thereof are the primary means to keep the moveable component
retracted.
In some embodiments, an additional or further safety feature is used to
maintain the
moveable component in a retracted position.
In some embodiments, 2, 3, 4, 5, 6, or more spools may be included. In some
embodiments, one or more of the winches may have a higher load capacity than
the
others. In some embodiments, 2 spools are included. In some embodiments, 3
spools
may be included. In some embodiments, 4 spools are included. In some
embodiments,
the spools are arranged symmetrically around the dimensions of the moveable
component that they are attached to. In some embodiments, the spools may be
non-
symmetrically arranged around the dimensions of the moveable component. In
some
embodiments, the spools are fixed in place. In some embodiments, the spools
are
attached to tracks or brackets that allow for the spool positions to be
adjusted based
upon the application. In some embodiments, the positions of the spools may be
fully
configurable with respect to the dimensions of the moveable component. In some
embodiments, the device may be modifiable so that one or more spools can be
added
to support heavier fixtures. In some embodiments, the spools are modular and
the
number of spools can be changed in a given device that is pre-wired and
configured to
control and power the spools. It can be appreciated that the number of spools
may be
changed based upon the particular application and upon the size and weight of
the
fixture that the device is designed to support.
16
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
Electrical safety feature
The device is designed with electrical connectors that automatically disengage
and reengage to cut off the flow of electricity when the moveable component
and/or
fixture is lowered and raised. This automatic cut off of electricity to the
fixture is an
important safety feature so that the fixture can be safely accessed. FIGs. 1
and 2 show
an embodiment of the device having a moveable component and electrical
connectors
[deformable connectors such as springs] and contacts [pads] that automatically
disengage when the moveable component is lowered.
Power Source and Control
Power may be supplied to the fixture via power lines in the ceiling that are
connected to a ceiling junction box. As is described below in reference to
Fig. 9,
terminal strips are provided on the stationary component for supplying local
power to
the device and the connected fixture. Each device is provided with a user
configurable
DIP switch to set a unique device identifying code.
The device may be operated (raised or lowered) by remote control, either via a
wireless remote control or a hardwired switch such as a wall switch.
Embodiments of
these forms of remote control are shown in Figs. 10A-12B. One or more DIP
switches
provided on the remote control allow the user to pair a remote control with a
particular
device and its associated fixture. A single remote control may control the
operation of
up to eight devices.
It is contemplated that while a wall switch itself is normally hardwired, the
toggle
on the bottom of it will usually be powered by wires from the wall, but will
still be
transmitting to the control unit via wireless technology. This feature
prevents the need
for having a circuit to be run from the switch to the unit for purposes of
controlling the
raising and lowering the unit. In an aftermarket embodiment, it could be
difficult or
impractical to run wires from a ceiling junction box to the switch given walls
and framing
barriers that might exist, thus the need for the toggle to operate the control
wirelessly.
17
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
Aftermarket Embodiments
The aftermarket version will allow for the device to be attached to the
originally
installed junction box in the ceiling or wall, utilizing a decorative veneer
for aesthetic
purposes. The fixture would then attach to the device.
Alternative Original Construction Embodiments
An alternative version designed for original construction will have the device
integrated into the junction box itself to house the unit, which will then be
installed in the
ceiling joists. There will be no need for a traditional junction box as the
unit will be both
the junction box to which the building electrical supply will be attached as
well as the
device itself to which the fixture will be attached.
Alternative OEM embodiments
OEM embodiments may exclude a retractable base component and instead
comprise a fixture having electrical connectors, including any slidable or
angular
adjustment mechanisms, and cable attachments. An example embodiment is shown
in
FIG. 22 with a fan having the male connectors of FIG. 17 that can engage with
the
female connectors on the stationary base component when the fixture is
retracted. A
further embodiment is shown in FIG. 20 which has a single winch and uses
concentric
electrodes so that the recessed light fixture can electrically engage with the
stationary
base component at any rotational position. It can be appreciated that such
embodiments are exemplary and any OEM application or embodiment relying upon
any
combinations of the features of the present disclosure are within the scope of
the
present disclosure.
Description of Components
The following description is related to particular embodiments and provides a
non-limiting overview of the various components of devices within the scope of
the
disclosure.
18
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
For the aftermarket embodiment, reference is made to the drawings. Fig. 1
shows a stationary component 100 of the fixture accessibility device affixed
to a ceiling
junction box 120 by screws or other affixing means (not shown). The stationary
component 100 includes a reversible motor 125 that drives a belt 140 that
drives spools
130 to wind or unwind a respective suspension cable. The embodiment of Fig. 1
shows
three spools 130, but other numbers of spools and suspension cables is
contemplated.
Here, the suspension cables are shown as fully retracted, each cable being
wound on
its respective spool 130 so as to raise a moveable component 200 of the
fixture
accessibility device into a docked state in which the moveable component 200
is
physically and electrically connected to the stationary component 100. The
moveable
component 200 also includes an auxiliary junction box 250 to which the fixture
300,
shown as an overhead light in this drawing, is connected physically and
electrically.
In the docked state, deformable power connectors 180, shown in this
embodiment as four connectors arrayed on both the left and right sides of the
stationary
component 100, compress against and make electrical contact with respective
mating
pads disposed on the moveable component 200. A locking mechanism 170, shown in
this embodiment as a piston disposed on the left and right sides of the
stationary
component 100, engage with corresponding recesses on the moveable component to
securely hold the moveable component in place and maintain the docked state.
An
optional decorative face plate 260 on the bottom face of the moveable
component 200
conceals the stationary component 100 when is the docked state.
Fig. 2 shows the stationary component 100 and the moveable component 200 in
an undocked state. In this state, the moveable component 200 suspended below
the
stationary component 100 by suspension cables 150 that descend from spools 130
and
pass though flanged elbows 160. Locking mechanisms 170 have been retracted
from
corresponding recesses 230 so as to allow the moveable component 200 to
descend.
As can be seen, the deformable power connectors 180 on the stationary
component
100 are disconnected from respective mating pads 220. The pads 220 are further
connected to power lines 225 for supplying power to the fixture 300 at the
auxiliary
junction box 150.
19
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
Figs. 3A and 3B are cross-sectional views of the stationary component 100
along
direction 3A as shown in Fig. 2. Figs. 3A and 3B show the positioning of the
three
spools 130 and their associated guiding elbow 160 and suspension cable 150,
the belt
140, and reversible motor 125 in relation to an opening 120' for the ceiling
junction box
120. In this embodiment, three suspension cables 150 and a corresponding
number of
spools 130 and elbows 160 are used to provide adequate strength and stability
to
support the moveable component 200 and the fixture 300. The belt 140 defines a
perimeter of a user access area that, as will be explained below and in
reference to Fig.
5, facilitates the physical mounting of the device to the ceiling junction box
120,
attachment of AC power lines to power strips 185, and the setting of a fixture-
identifying
code via a 4-position DIP switch 189.
Screw mounting tabs 122 are provided around the edges of the opening 120'.
Mounting screws (shown in Fig. 7) can be threaded through these tabs 122 to
physically
secure the stationary component 100 to the ceiling junction box 120. For
additional
mounting strength, holes or slots 110 are provided outside the junction box
opening
120' to more securely fasten the stationary component 100 to the ceiling or
wall when
extra support is needed for heavier electrical fixtures. A toggle bolt or
other secure
fastening system may be used to fasten the stationary component 100 through
slots
110 to the ceiling or joists. On left and right sides of the opening 120' are
disposed
terminal strips 185 to which a user can connect AC power lines that have been
fed from
the junction box 120 and through the opening 120'. This embodiment shows two
terminal strips 185 to accommodate two AC power lines for use with fixture 300
that
combines, for example, a ceiling light and a ceiling fan, each with its own
supply of
power. Other embodiments having a fewer or greater number of terminal strips
185 are
also contemplated in accordance with the requirements of a particular
application.
A control unit 191 that includes the user settable 4-position DIP switch 189
is
shown within the user access area bounded by the belt 140. The DIP switch 189
is set
by the user to establish a fixture-identifying code that, when transmitted by
a wireless
remote control or wired switch, will allow remote controlled operation of the
accessibility
device.
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
Figs. 4A and 4B are cross-sectional views of the stationary component 100
along
direction 4A as shown in Fig. 2. In this embodiment, the deformable power
connectors
180 are arrayed in an offset configuration to provide greater distance between
the
connectors 180 and thus greater safety from electrical hazards. Other
embodiments
contemplate various alternative configurations of the deformable power
connectors,
such as radially about the opening 120' or in a linear configuration.
Fig. 5 shows an access plate 197 and three plate retaining screws 123B that
are
used to secure the plate 197 to the stationary component 100. By unscrewing
the plate
retaining screws 123B and removing access plate 197, a user is able to access
the
aforementioned user access area, which includes the holes and/or slots 110,
screw
mounting tabs 122, the terminal strips 185, and the DIP switch 189.
Fig. 6 shows an embodiment in which the stationary component 100 has been
mounted on a non-horizontal surface, such as the sloped portion of a ceiling.
In this
embodiment, since the belt 140 drives all spools at the same rotational speed,
the
suspension cables 150 will also extend and retract at a uniform speed and
hence the
moveable component 200 while suspended will maintain the same angle with
respect to
the horizontal as does the stationary component 100. The elbows 160 are
provided with
flanged ends that permit the cables 150 to drop vertically and accommodate a
wide
range of mounting angles.
Fig. 7 shows in close detail the physical connection of the stationary
component
100 to a ceiling junction box 120 by means of mounting screws 123A. The
mounting
screws 123A are threaded through mounting tabs 122 and into corresponding
screw
holes on the junction box 120. The junction box 120 is shown as being secured
to a joist
124 via one or more screws 123C.
Fig. 8 shows in further detail the connection of the stationary component 100
to
the ceiling junction box 120 and the connection of the ceiling junction box
120 to a
ceiling joist 124. Two screws 123C secure the junction box 120 to the joist
124 for
added support, and two screws 123A secure the stationary component 100 to the
junction box 120.
21
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
FIG. 9 is a schematic drawing that shows an embodiment of electrical
connections between the power lines from the junction box 120 and the
stationary
component 100. In this embodiment, two 4-wire AC power lines are used to
provide
power to, for example, a fixture 300 that includes both a ceiling fan and a
ceiling light.
Depending on the application, other embodiments may contain a fewer or greater
number of power lines and corresponding terminals and connectors on the
stationary
component 100. Here, 4-wire AC power lines are connected from the junction box
120
to 4-wire terminal strips 185. A user would typically connect these power
lines to the
terminal strips 185 when first installing the accessibility device. Each
individual terminal
on the terminal strips 185 is connected to an individual deformable power
connector
180. A set of power lines from one terminal strip 185 is connected to a
control unit 191.
The control unit would include an AC-DC converter (not shown), a 4-position
DIP switch
189 and various control logic including a microcontroller 193. The
microcontroller 193
and various control logic communicate with a remote-control device, such as a
wireless
remote control 400 (as shown) or, for example, a wired remote control device
(as shown
in Figs. 12A and 12B). In response to commands from the remote control, the
control
unit 191 controls operation of the reversible motor 125 to raise or lower the
fixture 300.
The control unit 191 is also connected to a proximity sensor 195 that notifies
the control
unit when the cables 150 have been fully retracted so that the microcontroller
193 can
instruct the reversible motor 125 to stop and the pistons 170 to engage with
and
protrude into the corresponding recesses 230.
FIGS. 10A and 10B are front and back views, respectively, of an embodiment of
a wireless remote-control device 400 for controlling a single ceiling fixture
accessibility
device. The front of the wireless remote control 400 includes a toggle switch
410 to
control the rotational direction of the reversible motor 125 and thus the
raising and
lowering of the electric fixture 300. Mounted on the rear of the wireless
remote control
400 is a 4-position DIP switch 415 that, when set to match the fixture-
identifying code of
the DIP switch 189 on the stationary component 100, configures the remote
control 400
for controlling the fixture 300 attached to said stationary component 100.
22
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
FIGS. 11A and 11B are front and back views, respectively, of an alternative
embodiment of a wireless remote-control device 400. In this embodiment, the
remote
control 400 is provided with eight toggle switches 410 on the front and eight
4-position
DIP switches on the rear, to enable control of up to eight ceiling fixture
accessibility
devices.
A hardwired remote control is also contemplated in some embodiments. Fig. 12A
is a front view of a hardwired remote control 420 that is provided with a
toggle switch
and a dimmer. FIG. 12B is a side view of the hardwired control device and
shows a 4-
position DIP switch 415 for setting the fixture identifying code.
List of Reference Numbers
Ref. No. Description
100 Stationary component
110 Holes and/or slots for optional screw or bolt for extra
support
for heavier electrical fixtures
120 Ceiling junction box
120' Opening for ceiling junction box
122 Tab for mounting screw
123A Mounting screw(s) that secure the stationary component to
the junction box
123B Plate retaining screw(s) that secure the plate to the
stationary
component
123C Screw(s) that secure the junction box to supporting
structure
such as stud or floor joist
124 Supporting structure such as a stud or floor joist
125 Reversible motor (with spindle or other means for driving
the
belt that rotates the spools).
130 Spool
23
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
140 Belt
150 Suspension cable
160 Elbow
170 Piston
180 Deformable power connector (spring)
185 Terminal strip
189 4-position DIP switch
191 Control unit
193 Microcontroller
195 Proximity sensor
197 Access plate
200 Moveable component
220 Mating pad for spring connector
225 Power lines for supplying power to the fixture 300
230 Recess for piston
250 Auxiliary junction box
260 Optional decorative face plate
300 Electric fixture (e.g., light fixture, ceiling fan, etc.)
400 Wireless remote control
410 Toggle switch on wireless remote control to control up/down
of fixture
415 4-position DIP switch for setting fixture identifying code
at the
remote control
420 Wired remote control
For the original construction and OEM embodiments, refer to FIGs. 13 -23,
which
show additional embodiments of the disclosure. These embodiments are
contemplated
to various structures and junction boxes and to employ spools and connectors
of
various shapes and sizes. Yet further embodiments that comprise various sizes
and
24
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
shapes of connectors, motors, connectors and safety locking mechanism may also
be
contemplated without departing from the gist and scope of the disclosure.
Other components and embodiments
= Housing (alternatively referred to as stationary base unit)
o Contains the fixed-component portions of the device
o Comprises slidably adjustable electrical connectors
o For the original construction version
= Mounted above the ceiling or on the wall between the joists or
studs
o For the after-market device
= Fastened to the junction box installed in the ceiling of the structure
o For the OEM version
= May have a junction box incorporated and may be mounted above
the ceiling or on the wall between the joists or studs
= May not have a junction box incorporated and may be fastened to
the junction box installed in the ceiling of the structure.
= Decorative cover to which device will be attached (alternatively referred
to as
moveable component)
o For after-market device
= Covers the junction box and immediate surrounding area
= Top is flush with the ceiling and housing containing mechanism
extends below the ceiling
o For original construction version
= Bottom is flush with the ceiling as it ascends up inside the joists
= Flashing surrounds it such that there is a clean look at the
circumference of the device when raised flush with the ceiling
o Contains angularly-adjustable electrical connectors
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
O Attaches to the fixture via connections in the same size, orientation,
and
manner as if it were the junction box in the ceiling to which the fixture is
attached
O Out of the box ceiling white, but of a material which allows customer to
paint custom colors
= Power strip for connection to building electrical supply
O Connected to device to allow for internal power supply to fixture
= Internal power connection
O Male plug conically-shaped rod/female receptacle conically-shaped port to
allow for centering/easy positioning of device and 100% certainty of
alignment should there be a slight swing/movement of fixture as it is raised
O +/-/ground (alternatively hot/neutral/ground) connectors to allow for
proper
power supply considerations
O Each connector, both male and female, may:
= Tilt to allow for infinite adjustment of any angle of the ceiling
between 0 and 60 degrees
= Be on a sliding mount/track to allow for movement to allow for and
accept different ceiling angles, infinite adjustment between 0 and
60 degrees
= For each mount, have pre-mark positioning for common ceiling
angles, i.e. 15, 30 45 and 60 degrees
= In some alternative embodiments, two (2) or more motorized spools of wire
attached affixed to the ceiling mount and to the decorative cover, which will
be
raised and lowered by engaging the motors with the remote app
0 The fixture will be kept in the same relative position to the plate/motors
mounted to the junction box due to it having two anchor points, one for
each spool
O The fixture will be kept level as the end of each wire will attached to a
splitter, which will then have two wires which will extend to the corners on
their respective side of the inside of the decorative cover. This design
26
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
allows for four (4) points of contact, keeping the cover to which the fixture
is mounted at the same relative angle
= Attachment points at one end of each split wire (on the same
relative side of the cover) will be adjustable to allow for the variable
ceiling angle.
= Each will be infinitely adjustable in-between the limits of the
angular adjustment mechanism and in-between the pre-marked
adjustments, with pre-marked intervals at 15,30, 45 and 60
degrees
= Safety mechanism
o This will be independent of the raising/lowering mechanism to enable
independent and redundant safety in conjunction with the tension provided
by the motorized spools
o This will be a piston/stem mechanism that will be engaged:
= To open upon initial messaging from the app to lower the fixture
= To close upon contact from closing a circuit when the fixture is in a
fully raised position. Alternatively, the device may comprise a
switch or sensor to determine whether the fixture is fully raised. The
switch or sensor may trigger the piston to close or may
communicate with the app to determine whether the piston should
be closed.
o The stem will be attached to the inside of the decorative cover and have
a
hole to receive the piston which will be positioned such that the housing
and decorative cover are fully mated when in the closed position
o The piston and stem will be mounted on similar mechanisms as the
electrical connections to allow for a variable angle of the ceiling
= Control App
o This will be an i0S/Android app to allow for:
= Wireless connectivity to n-number of devices connected to a
household or local network
27
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
= Control of raising and lowering the fixture at user specific intervals
or infinite variability
= Alerts if a fixture is lowered and there is a safety issue, e.g. not an
intentional action
In alternative embodiments the male and female electrical connectors may be
adjustable so that the moveable component can properly engage with the
stationary
component when it is mounted on a non-horizontal surface. An embodiment of
adjustable male and female connectors is shown in FIG. 17. The view shown in
FIG. 17
is cross-sectional. The male connector may have a conical shape and may engage
with
a female connector having a conical cavity. The conical cavity of the female
connector
may be larger than the conical male connector so that the female connector can
accommodate the male connector at multiple orientations.
The female connector may be attached to the stationary base component via a
track or equivalent mounting system that allows for the connector to be
slidably
adjusted. The track may be mounted to the stationary base component in an
orientation
that provides for slidable adjustment of the female connector in the desired
direction. In
some embodiments, the track may be rotated or attached in different
orientations so
that the female connector can be secured in various positions.
The male connector may be attached to the moveable component via an angular
adjustment mechanism. The angular adjustment mechanism may comprise a grooved
track with pre-marked adjustments and may be infinitely adjustable in-between
the limits
of the angular adjustment mechanism and in-between the pre-marked adjustments.
The
pre-marked adjustments may be at common ceiling or mounting surface angles
such as
15 , 30 , 45 , and 600 from vertical as depicted in FIG. 17. It can be
appreciated that
various designs for the male connector and angular adjustment mechanism are
contemplated so long as the male connector can be angularly adjusted in at
least one
direction. The angular adjustment mechanism may also comprise a vertical
adjustment
mechanism that allows the male connector or the angular adjustment mechanism
to be
28
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
moved vertically relative to the moveable component while maintaining
electrical
connection to the fixture. The angular adjustment mechanism may be rotated or
attached to the moveable component in different orientations to give the male
connector
a hemispherical range of adjustment.
The male connector and angular adjustment mechanism is not restricted to being
mounted on the moveable component and may be mounted to the stationary base
component instead. In embodiments where the male connector and angular
adjustment
mechanism are mounted on the stationary base component, the female connector
and
adjustment track may be mounted on the moveable component. In some
embodiments,
the female connector may further comprise an angular adjustment mechanism. In
some
embodiments, the directionality of connectors may be mixed, meaning that a
particular
component has one or more male and one or more female connectors and the
complementary connectors are arranged appropriately on the other component to
make
an electrical connection when the moveable component is retracted.
In some embodiments, the male and female connectors are engaged when the
moveable component is fully retracted. In some embodiments, the engaged
connectors
rotationally lock the moveable component so that a fan or other fixture with
moving
components can be attached. In some embodiments, one or more non-electrical
engaging connectors may be included to rotationally lock the moveable
component in its
retracted position. In some embodiments, the attached winch cables may
primarily or
further prevent rotational movement of the moveable component.
Incorporation by Reference
The entire disclosure of each of the patent documents, including certificates
of
correction, patent application documents, scientific articles, governmental
reports,
websites, and other references referred to herein is incorporated by reference
herein in
its entirety for all purposes. In case of a conflict in terminology, the
present specification
controls.
29
CA 03212525 2023- 9- 18
WO 2022/203974
PCT/US2022/021054
Equivalents
The invention can be embodied in other specific forms without departing from
the
spirit or essential characteristics thereof. The foregoing embodiments are to
be
considered in all respects illustrative rather than limiting on the invention
described
herein. Furthermore, it should be noted that the figures illustrating the
various
embodiments are not necessarily to scale, but are shown as such for
convenience and
ease of illustration. In the various embodiments of the present invention,
where the
term comprises is used with respect to the recited components or methods, it
is also
contemplated that the invention consists essentially of, or consists of, the
recited
components or methods. Furthermore, it should be understood that the order of
steps
or order for performing certain actions is immaterial so long as the invention
remains
operable. Moreover, two or more steps or actions can be conducted
simultaneously.
In the specification, the singular forms also include the plural forms, unless
the
context clearly dictates otherwise. Unless defined otherwise, all technical
and scientific
terms used herein have the same meaning as commonly understood by one of
ordinary
skill in the art to which this invention belongs. In the case of conflict, the
present
specification will control.
Furthermore, it should be recognized that in certain instances an article of
manufacture can be described as being composed of the components prior to
assembly
or incorporation into the article of manufacture.
All percentages and ratios used herein, unless otherwise indicated, are by
weight. It is recognized the mass of an object is often referred to as its
weight in
everyday usage and for most common scientific purposes, but that mass
technically
refers to the amount of matter of an object, whereas weight refers to the
force
experienced by an object due to gravity. Also, in common usage the "weight"
(mass) of
an object is what one determines when one "weighs" (masses) an object on a
scale or
balance.
CA 03212525 2023- 9- 18
