US3762293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple photograph camera system
Assignee: Polaroid Corp
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Filing: 1971-10-26
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Granted: 1973-10-02
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Expires: 1991-10-26
Abstract
Abstract A camera system including a first section for forming an image at a focal plane and a second section slidably mounted on the first section for retaining a sheet of photographic material at a focal plane. A spring snap-action arrangement yieldably restrains the camera''s second section in two terminal positions with respect to the first section of the camera system. Complementary light barrier labyrinth structure respectively forming part of the two camera sections is structured to facilitate the aforementioned sliding movement essentially without friction. Adjustable elongated stop bars are provided on one camera section for limiting the amount of such sliding movement.
Inventors
- 👤 D Moodie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/023
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
117 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section, including means for forming an image at a focal plane; a second section, mounted for and accessible to direct manual movement thereof in slidable attachment to said first section, including means for mounting a sheet of photographic material at said focal plane for movement with said second section and along said focal plane; and overcenter spring means connecting said sections to add snapaction to said manual movement in each of two directions between two positions of said second section, at which positions different areas of said photographic sheet are presented to said image forming means.
Claim 2
Dependent Claim
117 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section, including means for forming an image at a focal plane; a second section, mounted for and accessible to direct manual movement thereof in slidable attachment to said first section, including means for mounting a sheet of photographic material at said focal plane for movement with said second section and along said focal plane; and overcenter spring means connecting said sections to add snapaction to said manual movement in each of two directions between two positions of said second section, at which positions different areas of said photographic sheet are presented to said image forming means.
Claim 3
Dependent Claim
37 words
A camera system according to claim 1, additionally comprising: means between said sections for excluding light from said sheet of photographic material during said movement of said second section, essentially without friction in said light excluding means.
Claim 4
Dependent Claim
38 words
A camera system according to claim 1, additionally comprising: means between said sections for excluding light from said sheet of photographic material, including overlapping, spaced forms without contact between said forms during said movement of said second section.
Claim 5
Dependent Claim
43 words
A camera system according to claim 1, additionally comprising: an elongate channel in one of said sections; and an elongate boss on the other of said sections lying in said channel without contact therewith, said boss and channel together comprising light excluding means.
Claim 6
Dependent Claim
25 words
A camera system according to claim 1, additionally comprising: a light labyrinth between said sections, essentially without friction during said movement of said second section.
Claim 7
Dependent Claim
62 words
A camera system according to claim 1, additionally comprising: an elongate bar on one of said sections; and a pair of abutments on the other of said sections, spaced from each other a greater distance than the length of said bar, for end engagement with said bar to stop said movement of said second section at said positions of said second section.
Claim 8
Dependent Claim
60 words
A camera system according to claim 1, additionally comprising: an elongate stop bar on one of said sections; a pair of abutments on the other of said sections for end engagement with said stop bar to define said positions of said second section; and a light labyrinth between said sections, essentially without friction during said movement of said second section.
Claim 9
Dependent Claim
18 words
A camera system according to claim 1, wherein: said second section is a container for a film pack.
Claim 10
Dependent Claim
18 words
A camera system according to claim 1, wherein: said second section is a frame for holding cut film.
Claim 11
Dependent Claim
27 words
A camera system according to claim 1, wherein: said second section includes means for spreading a processing fluid across said sheet of photographic material after exposure thereof.
Claim 12
Dependent Claim
34 words
A camera system according to claim 1, wherein: said second section is a standard form of camera back mounted on a slide adaptor unit which is, in turn, slidably attached to said first section.
Claim 13
Dependent Claim
32 words
A camera system according to claim 1, wherein: said second section is a cut film support mounted on a slide adaptor unit which is, in turn, slidably attached to said first section.
Claim 14
Dependent Claim
43 words
A camera system according to claim 1, wherein: said second section is a camera back ordinarily fixed to a camera structure of the nature of said first section, in fixed combination with a slide adaptor which is slidably attached to said first section.
Claim 15
Dependent Claim
92 words
A camera system according to claim 1, additionally comprising: means for excluding undesirable light from said sheet of photographic material at each of said positions and during said movement of said second section; said light excluding means comprising a light shield labyrinth of overlapping forms which are relatively movable in response to said moveMent of said second section, without touching between said overlapping forms; and said overlapping forms comprising an elongate channel in one of said sections and an elongate boss on the other of said sections and lying in said channel.
Claim 16
Dependent Claim
182 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section, including an optical system for forming an image at a focal plane; a second section for mounting a sheet of photographic material at said focal plane, slidably attached to said first section for moving such photographic sheet along said focal plane and between two positions, to present a different area of said photographic sheet to said optical system at each of said positions; means for resiliently biasing said second section in the direction of said movement from and beyond an intermediate point of said movement; and stop means for locating said second section at each of said positions; said stop means comprising a pair of abutments on one of said sections and an elongate bar on the other of said sections, for engagement of one end of said bar with one of said abutments and the other end of said bar with the other of said abutments to accomplish said location of said second section at each of said positions.
Claim 17
Dependent Claim
182 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section, including an optical system for forming an image at a focal plane; a second section for mounting a sheet of photographic material at said focal plane, slidably attached to said first section for moving such photographic sheet along said focal plane and between two positions, to present a different area of said photographic sheet to said optical system at each of said positions; means for resiliently biasing said second section in the direction of said movement from and beyond an intermediate point of said movement; and stop means for locating said second section at each of said positions; said stop means comprising a pair of abutments on one of said sections and an elongate bar on the other of said sections, for engagement of one end of said bar with one of said abutments and the other end of said bar with the other of said abutments to accomplish said location of said second section at each of said positions.
Claim 18
Dependent Claim
16 words
A camera system according to claim 15, additionally comprising: means for adjusting said elongate bar lengthwise.
Claim 19
Dependent Claim
26 words
A camera system according to claim 15, wherein: said elongate bar is mounted on said first section and said abutments are part of said second section.
Claim 20
Dependent Claim
32 words
A camera system according to claim 15, wherein: said elongate bar is mounted on said first section for adjustment lengthwise of said bar and said abutments are part of said second section.
Claim 21
Dependent Claim
52 words
A camera system according to claim 15, wherein: said first section is the main body of the camera; said second section is a shallow box-like back on said main body; said abutments are part of the interior wall formation of said back; and said elongate bar is mounted on said first section.
Claim 22
Dependent Claim
135 words
A camera assembly for use in a system for producing more than one photograph from a single sheet of photographic material, said assembly comprising: support means; means attached to said support means for receiving a sheet of photographic material, said sheet receiving means being mounted on said support means for displacement between two positions, both at a focal plane in said system; complementary means formed on said support means and said sheet receiving means for excluding undesirable light from said photographic sheet, said complementary means being configured to provide relative motion between respective portions thereof with a minimum of friction being developed therebetween during said displacement; and spring means for yieldably restraining said sheet receiving means in either of its said two positions once it has been displaced into either of its said two positions.
Claim 23
Dependent Claim
135 words
A camera assembly for use in a system for producing more than one photograph from a single sheet of photographic material, said assembly comprising: support means; means attached to said support means for receiving a sheet of photographic material, said sheet receiving means being mounted on said support means for displacement between two positions, both at a focal plane in said system; complementary means formed on said support means and said sheet receiving means for excluding undesirable light from said photographic sheet, said complementary means being configured to provide relative motion between respective portions thereof with a minimum of friction being developed therebetween during said displacement; and spring means for yieldably restraining said sheet receiving means in either of its said two positions once it has been displaced into either of its said two positions.
Claim 24
Dependent Claim
146 words
For use in a system for producing more than one photograph from a single sheet of photographic material, camera structure comprising: a first section, including an optical system for forming an image at a focal plane; a second section attached to said first section for mounting such a sheet of photographic material at said focal plane, said second section including a light labyrinth component; a back plate on said first section; and means on said back plate for excluding undesired light from such sheet of photographic material when such sheet is mounted at said focal plane within said second section; said light excluding means comprising a light labyrinth component spaced from said light labyrinth component of said second section for light exclusion cooperation with said light labyrinth component of said second section by presenting in combination a torturous path to light rays attempting to pass thereacross.
Claim 25
Dependent Claim
146 words
For use in a system for producing more than one photograph from a single sheet of photographic material, camera structure comprising: a first section, including an optical system for forming an image at a focal plane; a second section attached to said first section for mounting such a sheet of photographic material at said focal plane, said second section including a light labyrinth component; a back plate on said first section; and means on said back plate for excluding undesired light from such sheet of photographic material when such sheet is mounted at said focal plane within said second section; said light excluding means comprising a light labyrinth component spaced from said light labyrinth component of said second section for light exclusion cooperation with said light labyrinth component of said second section by presenting in combination a torturous path to light rays attempting to pass thereacross.
Claim 26
Dependent Claim
292 words
A camera systeM comprising: a camera body, including means for forming an image at a focal plane; a back plate on said camera with a light opening therethrough; a pair of attachment and guide rails mounted in parallel on the outside of said back plate, with said back plate opening therebetween; a baffle plate mounted on said back plate between said rails; said baffle plate having a light opening in optical alignment with said back plate opening; said baffle plate, further, having an outer slide surface and a pair of side, turned up edges in the form of elongate light baffle bosses each between one of said guide rails and said light openings; a pair of elongate stop bars mounted on said baffle plate parallel to said baffle plate edges, each between one of said edges and said light openings; a camera back mounted on said guide rails for mounting a sheet of photographic material at said focal plane and for movement along said focal plane to present different areas of said photographic sheet to said image forming means; overcenter spring means connected between said camera back and said camera body for adding snap-action to said camera back movement; stop abutments inside opposite ends of said camera back for engagement with the ends of said stop bars; elongate channel means on the inner face of said camera back and receiving without touching said edges of said baffle plate to provide light barrier labyrinths between said camera back and body; and a band of napped fabric across each end portion of said camera back and between said light labyrinths, as light barriers for sliding along said baffle plate slide surface to complete a movable rectangular light barrier which travels with said moving back.
Claim 27
Dependent Claim
292 words
A camera systeM comprising: a camera body, including means for forming an image at a focal plane; a back plate on said camera with a light opening therethrough; a pair of attachment and guide rails mounted in parallel on the outside of said back plate, with said back plate opening therebetween; a baffle plate mounted on said back plate between said rails; said baffle plate having a light opening in optical alignment with said back plate opening; said baffle plate, further, having an outer slide surface and a pair of side, turned up edges in the form of elongate light baffle bosses each between one of said guide rails and said light openings; a pair of elongate stop bars mounted on said baffle plate parallel to said baffle plate edges, each between one of said edges and said light openings; a camera back mounted on said guide rails for mounting a sheet of photographic material at said focal plane and for movement along said focal plane to present different areas of said photographic sheet to said image forming means; overcenter spring means connected between said camera back and said camera body for adding snap-action to said camera back movement; stop abutments inside opposite ends of said camera back for engagement with the ends of said stop bars; elongate channel means on the inner face of said camera back and receiving without touching said edges of said baffle plate to provide light barrier labyrinths between said camera back and body; and a band of napped fabric across each end portion of said camera back and between said light labyrinths, as light barriers for sliding along said baffle plate slide surface to complete a movable rectangular light barrier which travels with said moving back.
Claim 28
Dependent Claim
243 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section including means for forming an image at a focal plane; a second section including means for mounting a sheet of photographic material and means for spreading a processing fluid across said sheet of photographic material responsive to relative motion being effected between said sheet of photographic material and said fluid spreading means; means for slidably mounting said second section on said first section with said sheet of photographic material positioned to be displaced along said focal plane responsive to said second section being slidably moved with respect to said first section; means for effecting a light seal between said first section and said second section which is maintained during said slidable movement, said light seal effecting means including complementary labyrinth defining means on said first and second sections extending along the direction of said slidable movement; and means for limiting said slidable movement of said second camera section to respectively locate first and second sections of said sheet of photographic material in operative relationship with said image forming means, said movement limiting means including at least one elongated bar adjustably mounted on one of said camera sections for selective movement along its length axis and a pair of abutment surfaces located on said other camera section positioned to alternately engage respective ends of said elongated bar to limit said slidable movement.
Claim 29
Dependent Claim
243 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section including means for forming an image at a focal plane; a second section including means for mounting a sheet of photographic material and means for spreading a processing fluid across said sheet of photographic material responsive to relative motion being effected between said sheet of photographic material and said fluid spreading means; means for slidably mounting said second section on said first section with said sheet of photographic material positioned to be displaced along said focal plane responsive to said second section being slidably moved with respect to said first section; means for effecting a light seal between said first section and said second section which is maintained during said slidable movement, said light seal effecting means including complementary labyrinth defining means on said first and second sections extending along the direction of said slidable movement; and means for limiting said slidable movement of said second camera section to respectively locate first and second sections of said sheet of photographic material in operative relationship with said image forming means, said movement limiting means including at least one elongated bar adjustably mounted on one of said camera sections for selective movement along its length axis and a pair of abutment surfaces located on said other camera section positioned to alternately engage respective ends of said elongated bar to limit said slidable movement.
Claim 30
Dependent Claim
115 words
A photographic system comprising: a first section, including means for forming an image at a focal plane; a second section, mounted for and accessible to direct manual movement thereof in slidable attachment to said first section, including means for mounting photographic sheet material at said focal plane; stop means for locating said second section at each of two positions, to present different areas of said photographic material, to said image forming means at each of said positions, said stop means comrising a pair of abutments on one of said sections and an elongate bar on the other of said sections, endwise between Said abutments; and means for adjusting said elongate bar along its length axis.
Claim 31
Dependent Claim
115 words
A photographic system comprising: a first section, including means for forming an image at a focal plane; a second section, mounted for and accessible to direct manual movement thereof in slidable attachment to said first section, including means for mounting photographic sheet material at said focal plane; stop means for locating said second section at each of two positions, to present different areas of said photographic material, to said image forming means at each of said positions, said stop means comrising a pair of abutments on one of said sections and an elongate bar on the other of said sections, endwise between Said abutments; and means for adjusting said elongate bar along its length axis.
Claim 32
Dependent Claim
108 words
A photographic system comprising: a first section, including means for forming an image at a focal plane; a second section, mounted for and accessible to direct manual movement thereof in slidable attachment to said first section, including means for mounting photographic sheet material at said focal plane; and spring means connected to add snap-action to said manual movement between different positions of said second section to present different areas of said photographic material to said image forming means at each of such positions, said spring means comprising an overcenter arched spring with its ends closely adjacent each other at one point of such movement of said second section.
Claim 33
Dependent Claim
108 words
A photographic system comprising: a first section, including means for forming an image at a focal plane; a second section, mounted for and accessible to direct manual movement thereof in slidable attachment to said first section, including means for mounting photographic sheet material at said focal plane; and spring means connected to add snap-action to said manual movement between different positions of said second section to present different areas of said photographic material to said image forming means at each of such positions, said spring means comprising an overcenter arched spring with its ends closely adjacent each other at one point of such movement of said second section.
Claim 34
Dependent Claim
115 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section, including means for forming an image at a focal plane; a second section mounted for and accessible to direct manual movement thereof in slidable attachment to said first section between first and second positions relative thereto, said second section including means for mounting a sheet of photographic material at said focal plane for movement with said second section and along said focal plane; and spring means for yieldably restraining said second sction in both of said positions, at which positions different areas of said photographic sheet are presented to said image forming means.
Claim 35
Dependent Claim
115 words
A camera system for producing more than one photograph from a single sheet of photographic material, said system comprising: a first section, including means for forming an image at a focal plane; a second section mounted for and accessible to direct manual movement thereof in slidable attachment to said first section between first and second positions relative thereto, said second section including means for mounting a sheet of photographic material at said focal plane for movement with said second section and along said focal plane; and spring means for yieldably restraining said second sction in both of said positions, at which positions different areas of said photographic sheet are presented to said image forming means.
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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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |