Note: Descriptions are shown in the official language in which they were submitted.
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TITLE
Adjustable Door Jamb Lock
CROSS REFERENCE PATENTS
This is a non-provisional application claiming priority
from provisional application serial no. 61/539,799 filed
9/27/2011 and provisional application serial no. 61/538,547
filed 9/23/2011.
FIELD OF INVENTION
The present invention relates to providing a pivoting
pair of opposing wings with a meshing gear assembly that can
lock a door in any desired angle of opened.
BACKGROUND OF THE INVENTION
There are many, many types of apparatus designed to
lock a door in position, whether it be closed, partially
open, or at any position. Several of the prior art
citations listed below incorporate a small locking pin in
addition to the main hinge pin (or pintle). These U.S.
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citations are: 6,591,453; and 7,891,056; 3,969,788. U.S.
Pat. No. 4,844,519 uses a pin to lock a hinge-looking
apparatus that is installed on the latch side of the door,
not the hinge side; furthermore, it only locks a door in the
closed position.
Certain door locks or stays work in completely
different manners than the present invention. 3,325,854
holds a door open by placing a triangular piece of material
in the hinge crack; it is not adjustable. 2,550,626
operates by means of a piston and cylinder imbedded in the
door jamb and wall. 3,341,240 operates by pivoting a door-
stop-mounted adjustable rod into the hinge crack to prevent
closure - this does not prevent the door from opening
further. 4,630,333 operates by compressing the hinge
knuckle around a hinge pin made of thermoplastic. 773,717
describes a hinge that holds a door open by providing
friction between a spring-loaded pin and a disc in the
hinge. With the fription system, the door is not "locked"
into position, it is merely harder to move and resistant to
only light drafts and pushing. Similarly, 7,096,536 uses
friction between two detent discs to provide "dwell points"
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in the arc of a car door; the car door is never locked at
any one position, it simple has preferential resting points.
6,497,005 discloses a hinge-mounted doorstop that is
adjustable, but it only functions to stop a door from
opening past a certain point - it does not lock the door
into any given position.
Some prior art citations listed below do not address
the functionality of the present invention at all, or
address different types of "doors." 820,995 discloses a
multiple stay hinge which does not provide any of the door
stop/locking/stay functionality of the present invention.
7,322,629 discloses a way of locking the hinge in a multiple
panel apparatus covering a storage cavity in the floor of an
automobile. 5,408726 and 5,774,938 provide a locking
ratchet device for a door that holds a door open in the
furthest open position reached. The apparatus in these two
patents is a safety device for holding open the emergency
door of a bus, and does not "lock" a door in position - the
door is free to open further at anytime, the ratchet simply
prevents the door from slamming shut once opened. It is not
designed for residential door use.
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There are a number of prior art citations that are
similar to the present invention in functionality. These
citations all modify the central hinge pin to provide the
locking functionality. This is accomplished in two ways:
compressing "teeth" together, or fitting contoured male and
female parts together. Bushko, Beeril, and Baker all use a
mechanism to force the end of the hingepin against a toothed
surface to provide the locking action. Griego and the two
Van Gennep applications use a sliding pin where polygonal or
star shaped male plugs slide into female sockets to provide
the locking action.
These latter inventions are similar to the present
invention in functionality. However, there are key
differences that distinguish the present invention from
these prior art citations. First, we note that the closest
prior art incorporates the locking mechanism into a load-
bearing hinge. That immediately distinguishes the present
invention, since it is not load-bearing. Second, the
present invention is not a hinge at all - all of the prior
art use the hinge pin in some fashion to effect the locking.
The present invention does not have a hinge pin. There is
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no bearing surface within the present invention that can
provide hinge functionality. The present invention works in
conjunction with the existing hinges - it does not replace
them. Third, the present invention is not installed like a
hinge - it is not mortised into the jamb. The present
invention utilizes the space between the door and the jamb
by keeping the wings especially thin. The wings are in a
different configuration than butt hinges in that they are
offset. Fourth, the present invention does not modify the
action of any existing hinge or attach to a hinge, it
provides the functionality independently of the hinges.
Below follows a summary of the known relevant prior
art.
U.S. Pat. No. 773,717 (1904) to Craver et al.
discloses a door hinge having one leaf formed with a
circular plate extending through the knuckles. A spring-
loaded pin in the enlarged knuckle beneath the plate pressed
against the plate, creating enough friction in the hinge
such that the door will tend to stick in whatever positions
it is placed, even with small drafts.
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U.S. Pat. No. 820,995 (1906) to Smith discloses a door
hinge with four leaves, all wrapped around a single pintle.
The leaves are then attached such that a leaf attaches to
both sides of the door, and a leaf attaches to both sides of
the door frame.
U.S. Pat. No. 2,427,384 (1947) to Bushko discloses a
door hinge containing two pin members in the knuckles. The
lower pin is fixed, and has teeth on its top surface, the
upper pin can slide in the knuckles, and its lower surface
also has teeth. There is a spring pushing the top pin
downward such that the teeth engage and lock the two pin
members together, thus prevention the door from opening or
closing. The spring can be held back with a cam arrangement
so that the door may be position. Thus, a door can be
locked in place in a variety of position, including fully
closed.
U.S. Pat. No. 2,550,626 (1951) to Vollmer discloses a
door stop that slows a door closing or locks it in an open
position - it comprises a sleeve and sliding piston embedded
in the door casing. This piston is connected to the door by
an arcuate head portion screwed into the edge of the door.
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Friction between the piston and the sleeve slows the closing
of the door. The piston is such that rotating the piston
rod expands or constricts the friction surface of the
piston, increasing / decreasing / stopping the closing speed
of the door.
U.S. Pat. No. 3,325,854 (1967) to Steigerwald discloses
a door stop consisting of an angled piece of resilient
material attached to the top of the pintle by a swiveling
link. Thus, the material can be positioned such that it
forms wedge between the door and the door jamb, holding it
open. It also can be flipped through the door crack and
used on the outside, preventing the door from opening beyond
a certain point. There is no adjustability as to the angle
the door is held open.
U.S. Pat. No. 3,341,240 (1967) to Hazard discloses a
door stop consisting of a pivoting blocker attached to the
door stop on the door jamb. When pivoted out of the way, the
door closes normally. When the door opens, the door stop
can be pivoted into the space between the door and the jamb.
A longitudinally adjustable member adjusts how far open the
door is held.
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U.S. Pat. No. 3,629,900 (1971) to Beeril discloses
locking door hinges as regular butt hinges where the pintle
has toothed caps on each end. The teeth from these caps
mesh with teeth on the top and bottom knuckle. The pintle
extends beyond the top knuckle, where a cam lever makes it
possible to tighten the pintle such that the teeth are
tightly engaged against the knuckles, thereby locking the
door in any position open or closed.
U.S. Pat. No. 3,744,085 (1973) to Griego discloses a
door hinge where the pintle has polygonal plugs spaced along
its length. The leafs of the hings have matching polygonal
sockets where the knuckles are. The pintle is held by a
spring on the end such that the polygonal plugs engage the
sockets and hold the door in a set position. To operate the
door, the user presses down on the pintle, which slides such
that the polygonal plugs are no longer in the sockets, and
the hinge leafs are free to rotate about the pintle in
normal fashion. When the desired door position is reached,
releasing the spring raises the pintle so that the polygonal
plugs again engage the sockets and the door will not move.
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U.S. Pat. No. 3,969,788 (1976) to McCullough discloses
a hinged door lock that can be used in place of the strike
plate or as hinge itself for cabinet doors. If one leaf
replaces the strike plate, the other leaf extends out and
folds over the closed door. A locking pin then holds the
lock hinge in a 90-degree angle, locking the door itself.
If used as a hinge, the door is attached to the second leaf,
and when closed the locking pin inserts into the pintle,
locking the door in place (hinge leaves in a 90 degree
angle).
U.S. Pat. No. 4,630,333 (1986) to Vickers discloses an
adjustable friction hinge made of thermoplastic material.
One leaf has two knuckles, and holds the hinge pin. The
other leaf has a single knuckle with an adjusting screw,
such that the adjusting screw tightens the knuckle, clamping
the hinge pin. By adjusting the tightness of the adjusting
screw, friction around the hinge pin is set such that the
hinge still rotates under force, but remains in position
when no active force is applied.
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U.S. Pat. No. 4,844,519 (1989) to Dagon discloses a
door lock with locking pin. This lock has one plate attached
to the door jamb and the other plate attached to the door
itself, such that when the door is closed, knuckles
extending from the plates mesh together and form a channel
through which a pin is placed. This device only locks a
door in closed position, not in any position determined by
the user.
U.S. Pat. No. 5,173,993 (1992) to Baker discloses a
locking door hinge where the pintle is keyed to remain fixed
with respect to one hinge plate. On top of the pintle is a
locking clutch mechanism consisting of pressure and spocket
plates which are adjustable to allow retention of the door
in any pivotal position.
U.S. Pat. No. 5,408,726 (1995) to Kent discloses a
ratchet locking device that when retrofitted to an existing
door hinge, automatically locks the door in an open
position. This is envisioned for a school bus emergency exit
door, such that, no matter the position of the door, as it
is opened, the ratchet locks it open at the farthest point
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of travel, thus allowing escape without the door swinging
shut. There is a release mechanism to allow the door to
shut when necessary.
U.S. Pat. No. 5,774,938 (1998) to Kent discloses the
same idea as U.S. Pat. No. 5,408,726, with improvements to
the apparatus disclosed there.
U.S. Pat. No. 6,497,005 (2002) to Apostoloff discloses
a door stop that only prevents a door from opening beyond a
pre-determined setpoint. This is
a metal door stop that
attaches to the existing hingepin and is adjustable to limit
the opening of the door.
U.S. Pat. No. 6,591,453 (2003) to Jenks discloses a
locking hinge system where the knuckles extend out beyond
the hinge pin aperture and have a second aperture that
receives a locking pin. The knuckle extensions align
together when the door is closed, allowing the pin to be
inserted into the second aperture, preventing the door from
being opened. When the door swings open past 90 degrees, the
extensions pass by each other, such that if the pin is now
inserted into the second aperture, it prevents the door from
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swinging shut. The two locked positions are either fully
closed or greater than 90 degrees open, there is no
adjustment.
U.S. Pat. No. 7,096,536 (2006) to Johnson discloses a
hinge apparatus with cam plates attached to each hinge part.
The hinge pin connects the parts centrally though the cam
plates. The cam plates have detents in them, and ride on
each other. As the door opens, the cam plates rotate and
tend to resist rotation when the detents match up.
Envisioned for a car door, the hinges tend to hold the car
door open at certain points.
U.S. Pat. No. 7,891,056 (2011) to McAfee discloses a
locking door hinge that holds a door in predefined positions
by means of a pin in the barrels of the hinge connecting
them together. The hinge barrels will have small holes down
through them at different positions corresponding to
different angles of openness. At each available locking
position, certain holes will line up, allowing the locking
pin to connect the barrels of the hinge and hold the door in
position.
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U.S. Pat. Application Publication No. 2010/0218344 to
Van Gennep discloses a door hinge assembly consisting of a
hinge pin and a cylindrical channel having surfaces at one
end of the pin and channel designed to mesh together in a
locked fashion (star, polygonal, etc). The hinge pin is able
to slide up and down through the cylindrical passage through
the hinge knuckles such that when the hinge pin is elevated,
the meshing surfaces do not meet, and the hinge is free to
pivot as any normal hinge would. When the hinge pin is
pressed down, the contoured surface on the end of the pin
slides down into the meshing surface of the lower knuckle.
The hinge pin is held fast to the other hinge leaf by the
means of detents. Thus, when the pin is down, the hinge is
locked in position. A helical spring is optionally specified
to hold the hinge pin up (the unlocked position).
U.S. Pat. Application Publication No. 2011/0094058 to
Van Gennep consists of a continuation-in-part of U.S. Pat.
App. Pub. No. 2010/0218344.
In summary the present invention provides a non -
obvious improvement over the prior art door jamb locks. The
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present invention is installed to an existing hinge mounted
door between the door and the jamb itself. Opposing wings
can be locked by engaging a gear assembly merely by pushing
down on the wing pivot pin that connects the opposing wings.
SUMMARY OF THE INVENTION
The main aspect of the present invention is to
provide a pivoting pair of wings that can be mounted to
a door and its door jamb, wherein locking gears in the
wing collar can lock the door open at any angle.
Another aspect of the present invention is to
provide a vertical wing pivot pin with a locking gear
that engages by pressing down on top of the wing pivot
pin.
Other aspects of this invention will appear from
the following description and appended claims,
reference being made to the accompanying drawings
forming a part of this specification wherein like
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reference characters designate corresponding parts in
the several views.
The present invention consists of a pair of wings
mounted to a door edge and an opposing pair of wings
mounted to the door jamb. A wing pivot pin pivotally
engages the collars of the respective wings much like a
traditional hinge. Inside the collar is a female gear
with vertical grooves. The wing pivot pin has a
movable male gear that can move down to engage the
female gear at a desired angle to lock the door open.
Unlocking the door is done by pushing up on the wing
pivot pin.
The present invention is novel in that it can
instantly be installed to a door installation that is
mounted by typical standard mortised butt hinges
without mortising. There are many and various brands
and designs of butt hinges that are used worldwide and
used in residential homes and apartments, high rise
commercial office buildings and hotels, medical
centers, hospitals and etc. that are slightly different
in thickness, depth, height, size of hinge pin,
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distance of hinge pin center from plane of door and
jamb, required mortise depth, width and length.
Perhaps the most novel aspect of the present invention
is the use of the gap that exists between the door edge
and the jamb. One model can be used and installed in
nearly any mortise butt hinge hung door installation
conceivable. Nearly every mortised butt hinge hung
door installation has one thing in common; a gap of
approximately .0800" to .0930" between the door and
jamb when properly installed. Most every mortise butt
hinge for different door thicknesses and widths is
designed to furnish a gap within this tolerance when
properly installed in the appropriate mortise. This
gap and its typical size is for many various reasons to
include but not limited to clearance for slight changes
in size due to seasonal influences, clearance on the
opening edge of the door to clear the jamb as it is
pulled open, as well as maintaining a visually
appealing reveal around the door edge. Because of this
stereotypical gap the present inventions use of this
gap allows instant installation of the present
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invention. It is a matter of placing it in the gap and
moving the centerline of the present invention locking
pin in line with the hinge centers of the door
installation and fastening it into position. The
present inventions typical wing thickness is
approximately .0800" which is designed to facilitate
the majority of installation situations. It is
conceivable that some models of the present invention
will have slightly thicker wings so as to accommodate
heavy duty industrial applications whereas the gap is
larger.
The individual wings of the present invention are
located in the same vertical plane when the door is
closed. When in the closed position each wing
respectively is either above or below the other. Each
wing is .0800" in thickness, and because of this
feature the present invention only requires .0800" for
installation and function.
The present invention solves a very old but
universal problem; namely how to hold a typical entry
or interior butt hung hinge door open, easily, safely,
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effectively, attractively and affordably. Even in this
age often times one will see a brick or a stack of
books or a chair holding a door open because there has
not been until this present invention an instant,
simple, dependable and easy to use, easy to install
device to address this problem. Fire code has made the
use of wedges, bricks, or chairs or the like illegal to
use in public buildings in many states in the United
"States. In case of fire emergency a door in a public
building must be able to be closed instantly with "one
motion to close". The present invention provides this
function. The present invention installs instantly on
any typical butt hinge hung door, wood or steel,
residential or commercial as it installs in the
stereotypical gap that exists between the door and the
door jamb on the mortised hinge side. There is
absolutely no mortising or machining of the door or the
jamb for the present invention to be installed. A
simple drill and screwdriver is all that is needed for
quick installation. The present invention will
function equally well on door installations that open
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90 or 180 degrees more or less. The same model can be
mounted on right and left hand swing installations. It
can be installed high or low depending on individual
preference so that it is operated without stooping or
bending or reaching high above their head. With the
present invention installed on these typical door
installations, our wheel chair bound population and
people that have disabilities affecting their mobility
can instantly push a button to cause a door to stay
open so they can independently ingress or egress one
time or many without struggling with the door
repeatedly. The present invention can function equally
well on doors that have self-closers on them and still
meet the "one motion to close" fire code requirements.
The force required to pull the door closed in a
commercial duty model is adjustable using internal
spring resistance to set the release pressure. There
is no other door stay or door hold open device that
accomplishes all that this present invention
accomplishes.
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BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a front elevation view of a spring return
embodiment installed in a locked position.
Fig. 2 is a front elevation view of the spring return
lock alone shown in the unlock position.
Fig. 2A is a sectional view taken along line 2A - 2A of
Fig. 2.
Fig. 2B is an exploded view of the ball stud and socket of
Fig. 2.
Fig. 3 is a front perspective view of a mechanical lock
(a second embodiment) installed and in the
unlocked position.
Fig. 3A is a cross sectional view of a spring return lock
80.
Fig. 3AA is an exploded view of the spring retraction
mechanism 80 of Fig. 3A.
Fig. 3B is a sectional view of the spring return lock in
the free position.
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Fig. 3C is a sectional view of the spring return lock in
the locked position.
Fig. 4 is a horizontal sectional view of Fig 3.
Fig. 5 is a vertical sectional view of the second
embodiment lock in the unlocked position.
Fig. 6 is the same view as Fig. 5 in a cutaway mode.
Fig. 7 is the same view as Fig. 5 in the locked position.
Fig. 8 is the same view as Fig. 6 in the locked position.
Fig. 9 is the same view as Fig. 8 showing a close-up view
of the meshing gears.
Fig. 10 is an exploded view of the preferred second
embodiment.
Fig. 11 is an exploded view of a third embodiment lock.
Fig. 12 is a vertical sectional view of the third
embodiment lock shown in Fig. 11.
Fig. 13 is a front elevation view of non-screw to door
edge 7 using magnetic attraction embodiment.
Fig. 14 is a front elevation view of non-screw to door
edge 7 using spring force embodiment.
Fig. 15 is a front perspective view of embodiment 1500 in
the unlocked mode.
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Fig. 16 is the same view as Fig. 15 in the locked mode.
Fig. 17 is a top plan view of the plunger of embodiment
1500.
Fig. 18 is a front perspective view of the clamp fastener
1100S.
Fig. 19 is an exploded view of the clamp fastener 1100S.
Fig. 20 is a front perspective view of embodiment 2000.
Fig. 21 is a cross sectional view of adjustment embodiment
2100.
Fig. 22 is an exploded view of an optional adjustable ball
lock alignment pin.
Before explaining the disclosed embodiment of the
present invention in detail, it is to be understood that the
invention is not limited in its application to the details
of the particular arrangement shown, since the invention is
capable of other embodiments. Also, the terminology used
herein is for the purpose of description and not of
limitation.
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DETAILED DESCRIPTION OF THE DRAWINGS
Referring first to Figs. 1 and 2 the door jamb lock 1
has an upper wing 2 affixed to the door jamb 3 via screws 4
through holes 5 in the upper wing 2. A lower wing 6 is
affixed to the door edge 7 via screws 4 through holes 50 in
lower wing 6. A movable wing pivot pin 8A is secured inside
upper collar 9 and lower collar 10. This moveable assembly
can be achieved by numerous methods, in this case an
indexing plunger Application Number: 10/077,021 US
2003/0156923 Al, incorporated herein by reference, was
modified to provide 17A and BS to function. Threads 16 affix
it to collar 9. The vertical axis A of the movable wing
pivot pin 8A is aligned with the vertical axis AA and
centerline of the door hinge pin 11 of door hinge 12.
Fig. 1 shows the wing pivot pin pushed down, thereby
engaging key 13A into the female receiver 14 which is
rigidly mounted inside lower collar 10. The upper washer 15
is rigidly mounted inside upper collar 9. Upper washer 15
with a hex nominally a 12 point socket shaped center hole
locks the hex key 13A from any rotational movement. Thus,
as shown in Fig. 1, the key 13A locks the female receiver 14
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and the lower collar 10 and the lower wing 6 and the door
edge 7 in a fixed and locked rotational orientation in
relation to the stationary door jamb 3.
Referring next to Figs. 2, 2A, 2B the wing pivot pin 8A
is shown in the up and unlocked position which has raised
the key 13A out of the female receiver 14. Piston 17A is
connected to key 13A by means of a ball stud BS on the end
of 17A and a receiving ball socket BSR in the end of 13A.
This spring loaded assembly can be made in numerous ways
such as described in U.S. Pat. No. 3,819,282 incorporated
herein by reference in its entirety. This spring loaded
embodiment 1 uses a spring loaded piston 17A to retract the
key 13A upward out of the female receiver 14 as seen in Fig.
2. The wing pivot pin 8A was pushed partially down from the
locked position shown in Fig. 1. When released the spring
retraction mechanism 80A pulled the piston 17A and key 13A
upward. An optional set screw 18 allows adjustment of the
female receiver 14 in the lower collar 10 at installation
time to accommodate minor angle variances between the door
jamb 3 and the door edge 7.
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Referring next to Figs. 3A, 3AA, 3B, 3C the spring
retraction mechanism 80 consists of the movable wing pivot
pin 8. Many pop up mechanisms like this are known in the
art, and U.S. Pat. No. 3,376,088 is incorporated herein by
reference. The wing pivot pin 8 has a top spline 171, which
in turn has a male ridge 170 and connected to pivot pin 8 is
the locking key 13 connected to the piston 17. The button
plunger 172 has a lower inside female receiving cavity 175
in its shaft 173 that receives pivot pin 8. The top 174 of
assembly 172 fits into spring housing 180. The locking
washer 178 slides on 180 to rest on the ridge 180B. The
washer 181 is affixed solidly to the bottom of button
housing 176 enclosing all components inside of button
housing 176. The button housing 176 is affixed to upper
collar 9.
The spring 177 as shown in Fig. 3B is in the passive
mode so that the spring presses in concert against the
bottom of 174 which pushes against the (inner) top of 180
which pushes against the (inner) top of button 179 (thereby
pushing against affixed washer 181 locating it in disengaged
position.) Fig. 3C illustrates button assembly 80 in locked
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mode holding locking key 13 down through and engaged in
female receiver 14 holding wing 6 rotationally locked.
Referring next to Figs. 3, 4 a simple central pivot pin
lock 100 is shown mounted in the same way as lock 1 shown in
Fig. 1. Door 70 has edge 7 which receives wing 6. The top
of the central pivot pin and button assembly is labeled 80T.
Top 80T is shown in the up position, which is the unlocked
position. Fig. 4 shows door 70 in the closed position C and
various open positions AA, BB, CC.
Referring next to Figs. 5-10 the lock 100 has a simple
and elegant design. The upper wing 2 is attached to its
upper collar 200. The lower wing 6 is attached to its lower
collar 600. Upper collar 200 rotates inside the upper
portion of lower collar 600 as shown by arrow R. A central
pivot pin 800 has an upper segment 801 to hold button 80T.
A central rod 802 supports gears 801, 803 and 804. Gear 804
supports a lower button 80L. Gear 803 has vertical teeth
803T which are received by the female receiver 850 in
grooves 850G. A locking bushing 8508 has a diameter D1 to
fit securely inside the lower collar 600. The diameter D2
of the female receiver 850 (which is a guide bushing for the
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gear teeth 803T) is sized to fit securely in the upper
collar 200. Thus, when button 80T is pushed down a
compressible protruding radius retaining ridge 80TR is
compressed and forced out of receiving groove 200G. The
gear teeth 803T slide into locking grooves LL of the locking
bushing 850B. Pushing up on button 80L causes gear teeth
803T slide out of the locking grooves LL unlocking bushing
850B. As button 80T returns to the disengaged position the
ridge 80TR expands into groove 200G thereby holding the pin
800 up in the unlocked position. The embodiment shown uses a
16 star point gear 803 which limits each door opening angle
to 22.5 degree increments. This is merely a design choice.
Referring next to Figs. 11, 12 the lock 1100 is the
same as lock 100 but for an angle adjust feature which
replaces the locking bushing 850B with movable bushing 6002.
Movable bushing 6002 has a toothed groove 6003 to enable the
set screws 6001 to lock it inside lower collar 6000. Lower
collar 6000 has threaded holes which secure the set screws
6001.
Referring next to Fig. 13 a door jamb lock 1300 has a
lower wing 666 that doesn't require screwing into the door
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edge. Instead a double sided sticky tape 667 could hold the
wing 666 against the door edge. Another embodiment could
have a metal washer as part 667, wherein a magnet mag is
screwed into the door edge. These embodiments are easier to
install without the door edge screws. Collar 600A has
receiving grooves RG for male ridges MR on collar 200A. This
feature attaches collar 600A to upper collar 200A so the
collars rotate freely while maintaining adjacent connection
to each other.
Referring next to Fig. 14 a door jamb lock 1400 again
has a non-screw lower wing 666. A circular spring 698
secured around collar 200A has an end leg 699 that urges the
wing 666 to stay against the door edge.
Referring next to Figs. 15, 16, 17 a door jamb lock
1500 consists of three pieces. A door jamb wing 1501 is
screwed into the door jamb 3. It has a grooved edge 1502
that mates with groove 1503 of the plunger 1504. The
plunger 1504 has one or more jamb grooves 1505, 1506. In
Fig. 15 the plunger 1504 is raised so as to not engage the
door wing 1507. Fig. 16 shows the plunger 1504 pushed down
to engage the inner edge 1508 of the door wing 1507.
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Figs. 18, 19 show a door jamb lock 1100S that works
like door jamb lock 1100, however, the wings 2S, 6S do not
have screw mounting holes. Instead a clamp 1100C with holes
1100H is screwed into the respective door and jamb. A thin
slot TS receives the respective wings 2S, 6S. Installation
is easier because the relative position of the wings 2S, 6S
in the slots TS adjust themselves in line with hinge axis
line AA to door jamb lock axis line A in one cycle of
opening door.
In Fig. 20 a door jamb lock 2000 has a pin 2001 aligned
in axis B which is off center from axis A of the hinges 12
hinge pin 11. Wing 002 and wing 006 are affixed to door jamb
3 by way of screws 4. Wing 2003 is allowed to swing freely
on common pin 2001. When door 70 is opened and wing 2003 is
lifted open its edge will be placed in any one of the
notches 2004N in stop 2004 which is installed on door edge 3
holding door in chosen position. By lifting the locking wing
2003, the door is released. Hole 2002 in wing 2003 allows
stop 2004 to reset in 2002 when door 70 is closed.
In Fig. 21 a jamb 2100 has an infinite angle adjustment
for the lower sleeve 600B, for various embodiments.
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CA 02845526 2014-03-10
Thumbwheel 87 can be tightened to force spring 2101 into
movable lock bushing 850C. Sleeve 600B houses the
thumbwheel 87. The stop washer 85C is fixed. The abrasive
meshing ABR between the bushing 850C and stop washer 85C is
locked by tightening the thumbwheel 87.
Referring last to Fig. 22 a safety breakaway assembly
2200 allows the door to be slammed upon or shut without
unlocking the male locking key 2222. In this assembly 2200
the male locking key 2222 has an upper segment 2204 and a
lower segment 2205. These segments can split apart
rotationally when the door overpowers the ball bearings 2255
which are normally held in recesses 2256 via the spring 2257
pushing down on the ball 2258 which in turn pushes the ball
bearings 2255 into the recesses 2256, adjustment screw 2203
provides an adjustment to the breakaway force needed to
break the static friction of the ball bearings 2255 in the
recesses 2256. The hollow tube 2201 allows access to the
screw 2203 for adjustment. Threads 2202 allow attachment of
a button(s) 80. The recess 2206 receives the lower segment
of hollow tube 2201.
CA 02845526 2014-03-10
Although the present invention has been described with
reference to the disclosed embodiments, numerous
modifications and variations can be made and still the
result will come within the scope of the invention. No
limitation with respect to the specific embodiments
disclosed herein is intended or should be inferred. Each
apparatus embodiment described herein has numerous
equivalents.
15
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