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US4452520A Expired / Lapsed US ⏱️ 0.0 years remaining

Lever for folding a camera having a retractable light source

Assignee: Polaroid Corp
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Filing: 1982-12-16
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Granted: 1984-06-05
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Expires: 2002-12-16
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Abstract

Abstract A folding camera including first, second and third housings pivotally interconnected for movement between an operative extended position and a folded position, and a source of artificial illumination, e.g., a strobe, which automatically moves into an operative position as the housings move into the fully extended position. A manually operable lever is pivotally coupled to the third housing and coupled to the strobe such that the rotation of the lever from a first position to a second position is effective to initially move the strobe into a retracted position and thereafter continued application of force to the lever causes rotation of the third and second housings into a folded position atop the first housing.

Inventors

  • 👤 Jonathan I. Kaplan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:13
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; G03B17/02; G03B17/04; G03B2215/00; G03B2215/05; G03B2215/0503; G03B2215/0507

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 272 words
A folding camera comprising: a first housing having first and second ends, said first housing being adapted to support a film cassette in position for the exposure of a length of film contained therein; a second housing pivotally mounted adjacent said first end of said first housing; a third housing having one end thereof pivotally coupled to said first housing near said second end of said first housing, said third housing further includes a second end which is pivotally coupled to a second end of said second housing thereby enabling movement of said first, second and third housings between a folded, compact, inoperative position and an extended, operative position wherein light may be directed toward said first housing so as to photographically expose the length of film; a source of artificial illumination coupled to said third housing for movement between a retracted inoperative position, when said first, second and third housings are out of said extended operative position, and an erected operative position in which it cooperates with said second end of said second housing to releasably lock said first, second and third housings in said extended operative position; and a manually operable lever coupled to said third housing and to said source of artificial illumination for movement between first and second positions, movement of said lever from said first position to said second position being effective to move said source of artificial illumination from said erected operative position to said retracted position and continued application of force to said lever when in said second position being effective to rotate said second and third housings in opposite directions into said folded position.
Claim 2
Dependent Claim 272 words
A folding camera comprising: a first housing having first and second ends, said first housing being adapted to support a film cassette in position for the exposure of a length of film contained therein; a second housing pivotally mounted adjacent said first end of said first housing; a third housing having one end thereof pivotally coupled to said first housing near said second end of said first housing, said third housing further includes a second end which is pivotally coupled to a second end of said second housing thereby enabling movement of said first, second and third housings between a folded, compact, inoperative position and an extended, operative position wherein light may be directed toward said first housing so as to photographically expose the length of film; a source of artificial illumination coupled to said third housing for movement between a retracted inoperative position, when said first, second and third housings are out of said extended operative position, and an erected operative position in which it cooperates with said second end of said second housing to releasably lock said first, second and third housings in said extended operative position; and a manually operable lever coupled to said third housing and to said source of artificial illumination for movement between first and second positions, movement of said lever from said first position to said second position being effective to move said source of artificial illumination from said erected operative position to said retracted position and continued application of force to said lever when in said second position being effective to rotate said second and third housings in opposite directions into said folded position.
Claim 3
Dependent Claim 117 words
A folding camera as defined in claim 1 wherein said manually operable lever is pivotally coupled to said third housing and includes means defining an arcuate slot having opposite ends, and said source of artificial illumination includes a pin which extends into said slot, whereby manual rotation of said lever from said first position to said second position is effective to transfer linear movement to said source of artificial illumination to move it into said retracted position while simultaneously moving one of said ends of said slot toward said pin as said lever enters said second position, and continued application of manual force to said lever is effective to rotate said third housing toward said folded position.
Claim 4
Dependent Claim 51 words
A folding camera as defined in claim 2 wherein said lever includes an outwardly extending flange upon which an index finger of a user is to apply a force to rotate said lever downwardly and toward the user as said lever is rotated from said first position to said second position.
Claim 5
Dependent Claim 97 words
A folding camera as defined in claim 1 further including a mirror assembly pivotally coupled to said second housing for movement between a light reflecting position and a fully down or non-reflecting position, and a linkage assembly for transmitting movement of said source of artificial illumination into said retracted position to said mirror assembly so as to rotate it toward said fully down position, whereby rotation of said lever into said second position is transmitted to said mirror assembly via said source of artificial illumination and said linkage assembly to rotate it toward said fully down position.

References Cited (Backward Citations)

US2941460A Cited
US3087400A Cited
US3479941A Cited
US3543661A Cited
US3589253A Cited
US3683770A Cited
US4316658A Cited
US4389110A Cited
US4392732A Cited
US4395102A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-06-05 1987-12-05 1988-06-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-06-05 1991-12-05 1992-06-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-06-05 1995-12-05 1996-06-05 $7700.00 Window Closed / Lapsed

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