Patent US2109057A successfully refreshed from Google Patents.
US3757657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operable film-advancing apparatus
Assignee: Polaroid Corp
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Filing: 1972-03-27
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Granted: 1973-09-11
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Expires: 1992-03-27
Abstract
Abstract Photographic apparatus including film-engaging apparatus mounted in position to engage a thin, flexible film unit near its trailing end and move it, subsequent to exposure, into the bite of a pair of pressure-applying members. The pressure-applying members rupture a container of processing liquid located near a leading end of the film unit and spread the processing liquid across a photo-sensitive element of the film unit while simultaneously continuing the movement of the film unit toward the exterior of the photographic apparatus. The film-engaging apparatus and at least one of the pressure-applying members are driven by a manually operated crank. Rotation of the crank is limited, by a pivotally mounted stop, to that which is necessary to advance the exposed film unit out of engagement with the pressure-applying members. The stop is temporarily rendered inoperative by actuation of a shutter release button to enable rotation of the crank to advance the next succeeding exposed film unit. Rotation of the crank, subsequent to actuation of the shutter release, is effective to recock the shutter of the photographic apparatus.
Inventors
- 👤 V Eloranta
- 👤 B Ruggles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:08
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
425 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; means including a shutter release for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means, including a crank, engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means simultaneously to continuously move said foremost film unit from said cassette and between said pressure-applying means and for driving said pressure-applying means at a rate sufficient to at least maintain the rate of movement of said foremost film unit as it is being advanced by said filmadvancing means; disenabling means; and means for moving said disenabling means between a first operative position in which it prevents rotation of said crank to advance said foremost film unit from said cassette and a second inoperative position wherein said crank may be rotated to advance said foremost film unit from said cassette, said moving means includes means responsive to actuation of said shutter release for moving said disenabling means from said first operative position to said second inoperative position, whereby rotation of said crank to advance said foremost film unit from said cassette is possible only after actuation of said shutter release.
Claim 2
Dependent Claim
425 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; means including a shutter release for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means, including a crank, engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means simultaneously to continuously move said foremost film unit from said cassette and between said pressure-applying means and for driving said pressure-applying means at a rate sufficient to at least maintain the rate of movement of said foremost film unit as it is being advanced by said filmadvancing means; disenabling means; and means for moving said disenabling means between a first operative position in which it prevents rotation of said crank to advance said foremost film unit from said cassette and a second inoperative position wherein said crank may be rotated to advance said foremost film unit from said cassette, said moving means includes means responsive to actuation of said shutter release for moving said disenabling means from said first operative position to said second inoperative position, whereby rotation of said crank to advance said foremost film unit from said cassette is possible only after actuation of said shutter release.
Claim 3
Dependent Claim
62 words
Photographic apparatus as defined in claim 1 wherein said moving means moves said disenabling means from said second inoperative position to said first operative position prior to said film-advancing means moving a succeeding film unit from said cassette, whereby said crank is prevented from driving said film-advancing means to advance said succeeding film unit until a subsequent actuation of said shutter release.
Claim 4
Dependent Claim
333 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; shutter means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means, including a crank, engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means; and means engageable with said shutter means and responsive to actuation of said manually operable means for cocking said shutter means subsequent to exposure of said foremost film unit, said means for cocking said shutter means includes a cam mounted for rotation by said crank.
Claim 5
Dependent Claim
333 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; shutter means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means, including a crank, engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means; and means engageable with said shutter means and responsive to actuation of said manually operable means for cocking said shutter means subsequent to exposure of said foremost film unit, said means for cocking said shutter means includes a cam mounted for rotation by said crank.
Claim 6
Dependent Claim
315 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; shutter means including a release for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said Film unit; manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure applying means; and disenabling means cooperable with said manually operable means for preventing the removal of more than one film unit for each actuation of said shutter release.
Claim 7
Dependent Claim
315 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; shutter means including a release for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said Film unit; manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure applying means; and disenabling means cooperable with said manually operable means for preventing the removal of more than one film unit for each actuation of said shutter release.
Claim 8
Dependent Claim
41 words
Photograhic apparatus as defined in claim 4 wherein said manually operable means include a crank pivotally coupled to said photographic apparatus and said disenabling means is mounted for movement into the path of rotation of said crank for limiting rotation thereof.
Claim 9
Dependent Claim
47 words
Photographic apparatus as defined in claim 5 wherein said disenabling means is movable in response to actuation of said shutter release to a position which permits rotation of said crank to move said foremost film unit out of said container and into engagement with said pressure-applying means.
Claim 10
Dependent Claim
337 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; and manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means, said manually operable means includes rotatable means having means thereon movable into and out of driving engagement with said film-advancing means during each revolution of said rotatable means, said means being movable out of driving engagement with said film-advancing means when said foremost film unit is in engagement with said pressure-applying means.
Claim 11
Dependent Claim
337 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; and manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means, said manually operable means includes rotatable means having means thereon movable into and out of driving engagement with said film-advancing means during each revolution of said rotatable means, said means being movable out of driving engagement with said film-advancing means when said foremost film unit is in engagement with said pressure-applying means.
Claim 12
Dependent Claim
307 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said filM assemblage in said photographic apparatus in position for exposure of said foremost film unit; means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means; and means for predeterminedly locating said manually operable means after said foremost film unit has moved out of engagement with said pressure-applying means.
Claim 13
Dependent Claim
307 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said filM assemblage in said photographic apparatus in position for exposure of said foremost film unit; means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means; and means for predeterminedly locating said manually operable means after said foremost film unit has moved out of engagement with said pressure-applying means.
Claim 14
Dependent Claim
26 words
Photographic apparatus as defined in claim 8 wherein said locating means prevents actuation of said manually operable means until said foremost film unit has been exposed.
Claim 15
Dependent Claim
312 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means; and means for preventing movement of said foremost film unit by said film-advancing means until said foremost film unit has been exposed by actuation of said exposing means.
Claim 16
Dependent Claim
312 words
Photographic apparatus for use with a film assemblage of the type including a cassette having means defining an exit in one end thereof through which a film unit is adapted to be moved subsequent to exposure, an opening adjacent an opposite end of said cassette and an exposure aperture, a plurality of discrete film units located within said cassette in stacked relation with a foremost one of said film units being adapted to be urged into a position adjacent said exposure aperture with a first end of said film unit in alignment with said exit, a second end of said film unit opposite said first end being in alignment with said opening and a photosensitive area of said film unit being located in alignment with said exposure aperture, said photographic apparatus comprising: means for locating said film assemblage in said photographic apparatus in position for exposure of said foremost film unit; means for exposing said foremost film unit through said exposure aperture in said cassette; film-advancing means mounted in said photographic apparatus and adapted to extend into said opening in said cassette to drivingly engage said foremost film unit near said second end thereof and thereby move said foremost film unit, subsequent to exposure, through said exit in said cassette; pressure-applying means mounted in said apparatus and adapted to drivingly engage said first end of said foremost film unit after it moves through said exit and spread a processing liquid across a photosensitive element of said film unit; manually operable means engageable with said film-advancing means and said pressure-applying means for driving said film-advancing means and said pressure-applying means to continuously move said foremost film unit from said cassette and between said pressure-applying means; and means for preventing movement of said foremost film unit by said film-advancing means until said foremost film unit has been exposed by actuation of said exposing means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |