POWER BANK DEVICE ENCLOSURE FOR FILM CAMERAS

ENCEINTE DE DISPOSITIF DE BANQUE D'ALIMENTATION POUR CAMERAS A PELLICULE

English Abstract

The invention provides an improved way of enclosing a power bank device, as a
power
cartridge that can be inserted inside a film camera. It can be rechargeable,
and
provides power to an assembly or devices that can be embedded or
interconnected
with the film camera.

Claims

1
The Embodiments Of The Invention In Which An Exclusive Property Or Privilege
Is Claimed Are Defined As Follows:
1. For a film camera, initially designed to capture an imagine using a
photosensitive
material, the use of internal space which was designed to provide a holding
and
traveling path for the film is to be re-used by providing space for additional
devices, to provide a power bank/supply for electro-
mechanical/electrical/electronically assemblies embedded or interconnected
with
the film camera or other power bank enclosures.
2. The combination defined in claim 1, including a single power bank device or
multiple enclosures or power cartridges which have batteries embedded with the
purpose to provide additional or external power source supply inside of a film
camera, being independent from the initial designed power supply of the film
camera itself.
3. Power bank device enclosures or power cartridges that interlock with the
existing
rolling film mechanism of the film camera for providing rotational movement or
kinetic energy. That which can be utilized for recharging purposes of the
embedded power bank or source.
4. The single or multiple power bank enclosure devices that can be
interconnected
in series or parallel with the scope of providing a power supply for electric
or
electronic assemblies embedded into the film cameras.
5. The process of manufacturing power cartridges as power bank device
enclosures for film cameras, with cylindrical, parallelepiped or combination
of
those volume types, which fits the inner envelope of the camera body, which
may have batteries inside. All this, with the intent of the optimal usage of
the
internal space, as described in claim 1, as well as in claim 2.

Description

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Power Bank Device Enclosure For Film Cameras
This invention provides an improved power bank device enclosure that can be
inserted
into film cameras (vintage, rangefinders, point and shoot, 35mm, medium and
large
format cameras).
Background Of The Invention
Power bank enclosures are known and widely used as external devices, and
employ
internal batteries based on different power storage technologies. Typical
power bank
enclosures and relevant related technologies are shown in the following United
States
of America and Japan patents:
US 5369565 A leon C. Chen, Michael Wilson
US 8541985 B1 John Wong
US 8013478 B2 Shih-Hui Chen, Chin-Tien Lin
US 2282075 A Mihalyi Joseph
US 2771814 A Warren R !son
US 3748986 A Daitoku K, Kimura S
US 4240734 A Katsuhiko Nomura, Keisuke Haraguchi
2012-242615 Nikon
US 20140202726 Al Chih-Hang Lee, Yung-Hung Hsiao, Pei-Li Chang
US 7222984 B2 Wen Sung Lee
US 20060250043 Al Wai Chung
US 7977806 B2 Byung-Sik Kim, Hong-Sam Kim, Hae-Soo Kim
Though such power banks have achieved successes, there has been a continuing
need for improvement and widening the field of applications.
Summary Of The Invention
The invention takes advantage of the available space in film cameras initially
designed
to hold the film and the film enclosure, usually comprising two compartments
adjacent
to the film exposure plane. The invention is an energy storage device in the
form of a
cartridge that is shaped to take advantage of this space. It provides devices
placed
inside the film camera with a versatile energy source. The power bank device
consists
of one or multiple batteries that are connected to each other and to other
devices to
which power is being supplied, and possesses the capability to use universal
wire
connections, and/or USB connections for additional power, data distribution,
and
recharging the battery or batteries. The cartridge is designed so that its
insertion into

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and removal from the film camera is achieved through the mechanism that
already
exists in film cameras to load or remove film cartridges.
In the drawings, which form a part of this specification,
Fig. 1 is a general view of the power bank device enclosure, assemblies and
cartridge
section details for a film camera with a horizontal film travel pathway;
Fig. 2 is a general view of the power bank device enclosure and assembly of
the
cartridges for a Twin Lens Reflex (TLR) film camera with a vertical film
travel pathway.
Detailed Description Of The Invention
Designs of the device for two different films camera types, horizontal film
travelling and
vertical film travelling, are detailed here. The way in which the above
objectives for the
device are achieved for each camera type is best explained with reference to
Fig. 1 and
Fig. 2.
In Fig. 1, a common film camera 1 with film travel path 2 placed horizontally,
allows the
power bank device enclosure 3 to be placed into the film cartridge slot 4 or
4a, inside of
the film camera 1, which is shown with the back cover 5 open. The power bank
enclosure device 3 is an assembly of two main parts, the electrical generator
cap or
recharger 3a that connects with or screws into the empty cylindrical cartridge
3b. The
film camera part highlighted with the dashed line la represents the volume
that can be
used to insert power bank enclosures 3 (3a and 3b) or an electronic assembly
15,
interconnected with universal connectors 9, presented as a USB port. The film
rewind
knob/crank 6 (which includes crank nib 6a) of the film camera is used to
secure a
mechanical connection with the cartridge swiveling nib 7 of the enclosure, and
serves
to transfer rotational movement of the camera crank 6 to the cartridge.
Rotation of the
crank is converted into electrical energy by an electric generator or electric
generating
device 10 installed inside 3a, providing a manual means for recharging the
battery 8
placed inside of the power supply device enclosure cartridge 3a. The electric
generator
or electric generating device includes a rotor with radial spinners on a
spindle
connected to the rotating shaft 11, which will generate electrical current.
The rotating
shaft ills directly attached to the nib 7, and uses cap 3a as a bearing to
allow for
rotational movement. A metal plate 12, connects the positive terminal of the
generator

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to the positive terminal of the battery 8. The negative terminal of the
generator connects
to the negative terminal of the battery with the metal lamella 13. The metal
lamella 13
also acts as a spring for keeping a removable battery fixed inside the power
bank
device enclosure, for a design that incorporates removable batteries. For
different
battery sizes a removable fitting ring 14 is used, which is a center-
perforated disc that is
placed around the battery prior to insertion into the power bank enclosure
cartridge 3b.
In Fig. 2, a common Twin Reflex Lens (TLR) film camera 1 with film travel path
2
placed vertically, allows the power bank device enclosure 3 and 3a (or 3b), to
be placed
into the film cartridge slot 4 (or 4a), inside of the TLR film camera 1, which
is shown
with the back cover 5 open. The film camera part highlighted with the dashed
line la
represents the volume that can be used to insert power bank enclosures 3 or an
electronic assembly 10, interconnected with universal connectors 9, presented
as a
USB port. The film rewind knob/crank 6 of a film camera it is used to convey
rotational
motion to camera's film winding knob 6a that has a secure mechanical
connection with
the cartridge swiveling nib 7 of the enclosure, transferring the rotational
movement.
This rotational motion is converted into electrical current that will be used
to recharge
the battery 8 or 8a placed inside of the power supply device enclosure. Since
TLR
cameras have a larger volume at the bottom compared with 35mm cameras, larger
power bank device enclosures could be used to accommodate multiple
rechargeable
batteries, either cylindrical 8 or parallelepiped type 8a (whether permanent
or
removable). The batteries are recharged either by the use of a manual
electrical
generator (see the electric generator device described in Fig. 1), or by the
use of a
power cord connector 11. The USB connection 9a makes the connection between
multiple enclosures through USB port 9 connections, for transferring data or
power; this
enables the entire assembly to be recharged when power is provided by a cord,
independently of whether the enclosure assemblies are placed inside or outside
of the
film camera 1.

Representative Drawing