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US3682076A Expired / Lapsed US ⏱️ 0.0 years remaining

Support member for preventing inverted insertion of a film cassette

Assignee: Polaroid Corp
•
Filing: 1971-05-14
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Granted: 1972-08-08
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Expires: 1991-05-14
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Abstract

Abstract A camera having a film receiving chamber and a support member mounted within the chamber for urging and supporting a properly inserted film cassette into position for exposure of a film unit contained therein. The support member includes first and second sections spaced from each other to define a gap which is adapted to releasably retain a portion of the film cassette upon inverted insertion of the latter into the film receiving chamber, thereby preventing full insertion of the film cassette into the chamber.

Inventors

  • 👤 Irving Erlichman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 04:05
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 121 words
A photographic camera for receiving a film cassette containing film units, comprising: means defining a chamber having an open end through which a film cassette is adapted to be inserted; means for locating the film cassette in said chamber with one of the film units in the cassette located in position for exposure; and an element located in the path of travel of the film cassette through said open end into said chamber having means integral therewith for preventing full insertion of the cassette into said chamber in an inverted position, and when the film cassette is properly positioned, said element allowing full insertion of the cassette into said chamber and urging the film cassette into engagement with said locating means.
Claim 2
Dependent Claim 121 words
A photographic camera for receiving a film cassette containing film units, comprising: means defining a chamber having an open end through which a film cassette is adapted to be inserted; means for locating the film cassette in said chamber with one of the film units in the cassette located in position for exposure; and an element located in the path of travel of the film cassette through said open end into said chamber having means integral therewith for preventing full insertion of the cassette into said chamber in an inverted position, and when the film cassette is properly positioned, said element allowing full insertion of the cassette into said chamber and urging the film cassette into engagement with said locating means.
Claim 3
Dependent Claim 46 words
A photographic camera as defined in claim 1 wherein said element located in the path of the film cassette further includes means defining a gap for receiving a portion of the film cassette during insertion of the film cassette into said chamber in an inverted manner.
Claim 4
Dependent Claim 34 words
A photographic camera as defined in claim 2 wherein said element located in the path of the film cassette further includes resilient means for urging the film cassette into engagement with said locating means.
Claim 5
Dependent Claim 73 words
A photograpHic camera as defined in claim 3 wherein said element located in the path of the film cassette includes first and second sections defining said gap, said first section including an inclined surface which is adapted to be engaged by the portion of the film cassette for moving said first section to a position out of locking engagement with the film cassette to permit withdrawal of the film cassette from the chamber.
Claim 6
Dependent Claim 23 words
A photographic camera as defined in claim 4 wherein said element located in the path of the film cassette is of unitary construction.
Claim 7
Dependent Claim 159 words
Photographic apparatus comprising: a camera including means defining a chamber having an open end through which a film cassette is adapted to be inserted; a film cassette including at least one film unit adapted to be located in position for exposure; means within said camera for locating said film unit in position for exposure; an element located in the path of travel of said film cassette through said open end into said chamber having means integral therewith for preventing full insertion of said film cassette into said chamber in an inverted position, and, when properly positioned, said element allowing full insertion of the cassette into said chamber and urging said film cassette into engagement with said locating means; and means on said film cassette adapted to be engaged by said element located in the path of travel of the film cassette upon insertion of said film cassette into said chamber in an inverted position to prevent said full insertion.
Claim 8
Dependent Claim 159 words
Photographic apparatus comprising: a camera including means defining a chamber having an open end through which a film cassette is adapted to be inserted; a film cassette including at least one film unit adapted to be located in position for exposure; means within said camera for locating said film unit in position for exposure; an element located in the path of travel of said film cassette through said open end into said chamber having means integral therewith for preventing full insertion of said film cassette into said chamber in an inverted position, and, when properly positioned, said element allowing full insertion of the cassette into said chamber and urging said film cassette into engagement with said locating means; and means on said film cassette adapted to be engaged by said element located in the path of travel of the film cassette upon insertion of said film cassette into said chamber in an inverted position to prevent said full insertion.
Claim 9
Dependent Claim 31 words
Photographic apparatus as defined in claim 6 wherein said means on said film cassette are adapted to cooperate with said locating means for locating said film unit in position for exposure.
Claim 10
Dependent Claim 26 words
Photographic apparatus as defined in claim 6 wherein said means on said film cassette include means defining an exposure aperture in alignment with said film unit.
Claim 11
Dependent Claim 17 words
Photographic apparatus as defined in claim 8 wherein said means defining an exposure aperture include rib means.
Claim 12
Dependent Claim 25 words
Photographic apparatus as defined in claim 9 wherein said rib means cooperates with said locating means to locate said film unit in position for exposure.
Claim 13
Dependent Claim 157 words
Support means for urging a properly inserted film cassette into position within a camera for exposure of a film unit contained therein and for preventing insertion of the film cassette into the camera in an inverted position comprising: first and second sections, said first and second sections being spaced from each other to define a gap therebetween, said first section, upon the inverted insertion of the film cassette, being adapted for movement by the film cassette in a first direction to allow a portion of the film cassette to pass to a point between said first and second sections and in a second direction wherein the portion of the film cassette is retained in said gap against further movement into the camera; and means coupled to said first section and engageable by the portion of the film cassette for moving said first section in said first direction to allow withdrawal of the film cassette from the camera.
Claim 14
Dependent Claim 157 words
Support means for urging a properly inserted film cassette into position within a camera for exposure of a film unit contained therein and for preventing insertion of the film cassette into the camera in an inverted position comprising: first and second sections, said first and second sections being spaced from each other to define a gap therebetween, said first section, upon the inverted insertion of the film cassette, being adapted for movement by the film cassette in a first direction to allow a portion of the film cassette to pass to a point between said first and second sections and in a second direction wherein the portion of the film cassette is retained in said gap against further movement into the camera; and means coupled to said first section and engageable by the portion of the film cassette for moving said first section in said first direction to allow withdrawal of the film cassette from the camera.
Claim 15
Dependent Claim 16 words
The invention as set forth in claim 11 wherein said support means is of unitary construction.

References Cited (Backward Citations)

US3161118A Cited
US2991702A Cited
US3362774A Cited
US3604327A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-08 1976-02-07 1976-08-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-08 1980-02-07 1980-08-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-08 1984-02-07 1984-08-08 $7700.00 Window Closed / Lapsed

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