Patent US3643571A successfully refreshed from Google Patents.
US3643571A
Expired / Lapsed
US
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Photographic film assemblage
Assignee: Polaroid Corp
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Filing: 1968-12-19
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Granted: 1972-02-22
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Expires: 1988-12-19
Abstract
Abstract A photographic film pack including a container having a forward wall and dependent end and sidewalls formed of a rigid vaporimpermeable material such as sheet metal and an opening at the rear; a plurality of self-developing film units each including a photosensitive element stacked within the container; a support member located behind the stack of film units; a battery located behind the backing member; and a vapor-impermeable closure for the opening at the rear, the closure being displaceable relative to the forward wall. The forward wall includes an exposure opening and one end wall is formed with a withdrawal opening for the film units. A vapor-impermeable cover is removably secured to the container in closing relationship to the exposure and withdrawal openings. The film pack is adapted to be employed in electrically operated photographic apparatus, having a springbiased pressure member adapted to extend into the container through the opening at the rear for urging the film units toward the forward wall to locate the forwardmost film unit in position for exposure, and spring-biased electrical contacts for engaging the terminals of the battery to couple the battery to electrically energized means within the camera.
Inventors
- 👤 Irving Erlichman
- 👤 Maxwell E Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:21
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/32; G03B17/34
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
141 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a battery mounted within said container behind said support member and including terminals located in position to be engaged by electrical contacts located behind said battery and urged toward said forward wall; and a vapor-impermeable closure for said opening at the rear of said container secured to said container and including at least a section displaceable relative to said forward wall.
Claim 2
Dependent Claim
141 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a battery mounted within said container behind said support member and including terminals located in position to be engaged by electrical contacts located behind said battery and urged toward said forward wall; and a vapor-impermeable closure for said opening at the rear of said container secured to said container and including at least a section displaceable relative to said forward wall.
Claim 3
Dependent Claim
17 words
A photographic film assemblage as defined in claim 1 wherein said closure is formed of an elastomer.
Claim 4
Dependent Claim
48 words
A photographic film assemblage as defined in claim 1 wherein said forward, side, and end walls of said container are formed of a relatively rigid material, and said closure is formed of a relatively flexible sheet material secured to said side and end walls by a vapor-impermeable seal.
Claim 5
Dependent Claim
28 words
A photographic film assemblage as defined in claim 1 wherein said closure is formed of a sheet material and includes at least portions displaceable toward said forward wall.
Claim 6
Dependent Claim
22 words
A photographic film assemblage as defined in claim 4 wherein said closure is attached by crimping to said side and end walls.
Claim 7
Dependent Claim
25 words
A photographic film assemblage as defined in claim 4 wherein said portions of said closure are located adjacent at least said sidewalls and are pleated.
Claim 8
Dependent Claim
28 words
A photographic film assemblage as defined in claim 6 wherein said portions of said closure are located adjacent both of said side and end walls and are pleated.
Claim 9
Dependent Claim
136 words
A photographic film assemblage comprising, in combination: a container having a vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container secured to said container, said closure being formed of a sheet material and including pleated portions located adjacent at least said sidewalls, said pleated portions being displaceable toward said forward wall; and a battery mounted on said closure intermediate said pleated portions thereof.
Claim 10
Dependent Claim
136 words
A photographic film assemblage comprising, in combination: a container having a vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container secured to said container, said closure being formed of a sheet material and including pleated portions located adjacent at least said sidewalls, said pleated portions being displaceable toward said forward wall; and a battery mounted on said closure intermediate said pleated portions thereof.
Claim 11
Dependent Claim
121 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container secured to said container, said closure being formed of a sheet material and inCluding at least portions displaceable toward said forward wall; and a battery mounted on said closure.
Claim 12
Dependent Claim
121 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container secured to said container, said closure being formed of a sheet material and inCluding at least portions displaceable toward said forward wall; and a battery mounted on said closure.
Claim 13
Dependent Claim
20 words
A photographic film assemblage as defined in claim 9 wherein said battery is mounted on the inside of said closure.
Claim 14
Dependent Claim
54 words
A photographic film assemblage as defined in claim 10 wherein said battery includes terminals located in position to be engaged by electrical contacts located behind said battery and said closure includes at least one opening providing access to said battery terminals and is secured to said battery around said opening by a vapor-impermeable seal.
Claim 15
Dependent Claim
20 words
A photographic film assemblage as defined in claim 9 wherein said battery is mounted on the outside of said closure.
Claim 16
Dependent Claim
65 words
A photographic film assemblage as defined in claim 1 wherein said light-transmitting section comprises an opening in said forward wall, one of said end walls is formed with an opening through which said one film unit is movable, and said film assemblage includes a vapor-impermeable sheet material removably secured to said container in closing relation to said openings in said forward and one end walls.
Claim 17
Dependent Claim
27 words
A photographic film assemblage as defined in claim 13 wherein said vapor-impermeable sheet material extends around and to the rear of said container to form said closure.
Claim 18
Dependent Claim
24 words
A photographic film assemblage as defined in claim 1 wherein said battery is mounted on said support member between the latter and said closure.
Claim 19
Dependent Claim
134 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member movable within said container toward said forward wall for engaging and supporting the film unit located furthest from said forward wall; means limiting movement of said support member away from said forward wall; and a vapor-impermeable closure for said opening at the rear of said container, said closure being removable to enable resilient means to urge said support member and said film units toward said forward wall.
Claim 20
Dependent Claim
134 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member movable within said container toward said forward wall for engaging and supporting the film unit located furthest from said forward wall; means limiting movement of said support member away from said forward wall; and a vapor-impermeable closure for said opening at the rear of said container, said closure being removable to enable resilient means to urge said support member and said film units toward said forward wall.
Claim 21
Dependent Claim
146 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container secured to said container and including at least a section displaceable relative to said forward wall; and a battery mounted on said closure within said container and behind said support member, said battery including terminals located in position to be engaged by electrical contacts located behind said battery and urged toward said forward wall.
Claim 22
Dependent Claim
146 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container secured to said container and including at least a section displaceable relative to said forward wall; and a battery mounted on said closure within said container and behind said support member, said battery including terminals located in position to be engaged by electrical contacts located behind said battery and urged toward said forward wall.
Claim 23
Dependent Claim
150 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container, said closure including a vapor-impermEable envelope secured to said end and sidewalls and including at least a section displaceable relative to said forward wall; and a battery mounted within said envelope behind said support member, said battery including terminals located in position to be engaged by electrical contacts located behind said battery and urged toward said forward wall.
Claim 24
Dependent Claim
150 words
A photographic film assemblage comprising, in combination: a container having vapor-impermeable forward, side, and end walls and an opening at the rear, said forward wall having a light-transmitting section therein; a plurality of film units arranged in stacked relation within said container with one of said film units located against said forward wall in position for exposure to light transmitted through said light-transmitting section; a support member for engaging and supporting the film unit located furthest from said forward wall; a vapor-impermeable closure for said opening at the rear of said container, said closure including a vapor-impermEable envelope secured to said end and sidewalls and including at least a section displaceable relative to said forward wall; and a battery mounted within said envelope behind said support member, said battery including terminals located in position to be engaged by electrical contacts located behind said battery and urged toward said forward wall.
Claim 25
Dependent Claim
21 words
A photographic film assemblage as defined in claim 18 wherein portions of said envelope adjacent at least said sidewalls are pleated.
Claim 26
Dependent Claim
43 words
A photographic film assemblage as defined in claim 1 wherein said film units are rectangular, said forward wall is substantially rectangular, said end and sidewalls depend therefrom and the corners of said container at the junctures of said end and sidewalls are rounded.
Claim 27
Dependent Claim
21 words
A photographic film assemblage as defined in claim 20 wherein opposite walls of said container are bowed inwardly toward one another.
Claim 28
Dependent Claim
31 words
A photographic film assemblage as defined in claim 21 wherein said end walls are bowed toward one another and engage the end edges of said film units intermediate the corners thereof.
Claim 29
Dependent Claim
28 words
A photographic film assemblage as defined in claim 22 wherein one of said end walls is provided with an opening through which said one film unit is movable.
Claim 30
Dependent Claim
38 words
A photographic film assemblage as defined in claim 23 wherein said sidewalls are substantially linear and parallel with the lateral edges of said film units for guiding said film units through said opening in said one end wall.
Claim 31
Dependent Claim
48 words
A photographic film assemblage as defined in claim 1 wherein said container includes a rear wall formed of a relatively rigid, vapor-impermeable material, said opening at the rear of said container is formed in said rear wall, and said closure for said opening is secured across said opening.
Claim 32
Dependent Claim
46 words
A container as defined in claim 16 further including a battery mounted on said support member, said battery including terminals located in position to be engaged by resiliently mounted electrical contacts for urging said battery, said support member, and said film units towards said forward wall.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |