US3722388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-lens reflex camera
Assignee: Agfa Gevaert AG
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Filing: 1971-09-23
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Granted: 1973-03-27
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Expires: 1991-09-23
Abstract
Abstract A single-lens reflex camera wherein the shutter can be opened and the mirror pivoted from the light reflecting position by an actuating mechanism which is operated in response to deformation of a diaphragm forming part of the release device. The diaphragm is mounted in the cylindrical hub of a rapid film transport lever and can operate the actuating mechanism by way of a pin which is coaxial with the lever, a blocking lever and a spring biased rod. The rod can be retracted to its normal position to allow for resetting of the actuating mechanism by a spring-biased member which is cocked by the film transport lever and uncocked by a cam upon completed operation of the actuating mechanism to thereby automatically return the rod to its normal position in which the rod is held by the blocking lever.
Inventors
- 👤 A Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:04
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/12; G03B17/00; G03B17/42; G03B9/00; G03B9/58
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
160 words
In a single-lens reflex camera, a combination comprising a housing; a plurality of camera components mounted in said housing and including a shutter actuatable to admit scene light against a film frame and a mirror actuatable to move between a lightreflecting first position and a second position; actuating means mounted in said housing and operable to actuate at least one of said camera components; and release means for operating said actuating means, said release means comprising a diaphragm which is accessible from without said housing and is deformable to thereby effect the operation of said actuating means, a motion transmitting member which is movable from a first to a second position to thereby operate said actuating means, means for biasing said motion transmitting member to said second position, blocking means for normally holding said motion transmitting member in said first position, and means for disengaging said blocking means from said motion transmitting member in response to deformation of said diaphragm.
Claim 2
Dependent Claim
160 words
In a single-lens reflex camera, a combination comprising a housing; a plurality of camera components mounted in said housing and including a shutter actuatable to admit scene light against a film frame and a mirror actuatable to move between a lightreflecting first position and a second position; actuating means mounted in said housing and operable to actuate at least one of said camera components; and release means for operating said actuating means, said release means comprising a diaphragm which is accessible from without said housing and is deformable to thereby effect the operation of said actuating means, a motion transmitting member which is movable from a first to a second position to thereby operate said actuating means, means for biasing said motion transmitting member to said second position, blocking means for normally holding said motion transmitting member in said first position, and means for disengaging said blocking means from said motion transmitting member in response to deformation of said diaphragm.
Claim 3
Dependent Claim
32 words
A combination as defined in claim 1, further comprising film transporting means including a portion rotatable about a predetermined axis, said diaphragm being mounted in said portion of said film transporting means.
Claim 4
Dependent Claim
43 words
A combination as defined in claim 2, wherein said release means further comprises a reciprocable member which is coaxial with said portion of said film transporting means and is arranged to move axially of such portion in response to deformation of said diaphragm.
Claim 5
Dependent Claim
61 words
A combination as defined in claim 1, wherein said motion transmitting member is reciprocable between said first and second positions and said blocking means comprise a lever which is pivotable into and from engagement with said motion transmitting member, said means for disengaging said lever from said motion transmitting member comprising a reciprocable pin interposed between said lever and said diaphragm.
Claim 6
Dependent Claim
58 words
A combination as defined in claim 1, wherein said means for biasing said motion transmitting member comprises resilient means which stores energy in the first position of said motion transmitting member and is fRee to dissipate at least the major part of stored energy in response to completed movement of said motion transmitting member to said second position.
Claim 7
Dependent Claim
31 words
A combination as defined in claim 1, further comprising cocking means for moving said motion transmitting member from said second to said first position against the opposition of said biasing means.
Claim 8
Dependent Claim
39 words
A combination as defined in claim 6, further comprising film transporting means actuatable to transport the film lengthwise and to thereby return said motion transmitting member from said second to said first position by way of said cocking means.
Claim 9
Dependent Claim
91 words
A combination as defined in claim 6, wherein said cocking means includes a cocking member which is movable between a cocked and an uncocked position and further comprising arresting means for normally holding said cocking member in said cocked position and disengaging means arranged to disengage said arresting means from said cocking member upon completed operation of said actuating means whereby said cocking member is free to move said motion transmitting member from said second to said first position in response to movement from the cocked to the uncocked position thereof.
Claim 10
Dependent Claim
17 words
A combination as defined in claim 8, wherein said disengaging means is actuatable by said actuating means,
Claim 11
Dependent Claim
39 words
A combination as defined in claim 6, wherein said motion transmitting member is reciprocable between said first and second positions and said cocking member is reciprocable between cocked and uncocked positions in substantial parallelism with said motion transmitting member.
Claim 12
Dependent Claim
41 words
A combination as defined in claim 6, wherein said cocking means comprises a cocking member which is movable between cocked and uncocked positions and said means for biasing said motion transmitting member comprises resilient means which reacts against said cocking member.
Claim 13
Dependent Claim
62 words
A combination as defined in claim 11, wherein said cocking means further comprises second resilient means for urging said cocking member to said uncocked position and for thereby stressing said first mentioned resilient means by way of said motion transmitting member so that the dissipation of energy by said second resilient means brings about a stressing of said first mentioned resilient means.
Claim 14
Dependent Claim
76 words
A combination as defined in claim 6, wherein said cocking means comprises a cocking member movable from a cocked position to an uncocked position to thereby move said motion transmitting member to said first position, resilient means for biasing said cocking member to said uncocked position, and further comprising film transporting means actuatable to transport the film lengthwise and to thereby move said cocking member to said cocked position against the opposition of said resilient means.
Claim 15
Dependent Claim
36 words
A combination as defined in claim 13, wherein said film transporting means comprises a rotary cam which is arranged to move said cocking member to said cocked position in response to lengthwise transport of the film.
Claim 16
Dependent Claim
61 words
A combination as defined in claim 6, wherein said cocking means comprises a cocking member movable from a cocked position to an uncocked position to thereby move said motion transmitting member from said second to said first position, means for biasing said cocking member to said uncocked position, and arresting means for releasably holding said cocking member in said cocked position.
Claim 17
Dependent Claim
32 words
A combination as defined in claim 15, further comprising a disengaging cam movable in response to completed operation of said actuating means to thereby disengage said arresting means from said cocking member.
Claim 18
Dependent Claim
58 words
A combination as defined in claim 15, wherein said cocking member comprises a first projection and said motion transmitting member comprises a second projection which is engaged and entrained by said first projection in response to movement of said cocking member to said uncocked position to thereby move motion transmitting member from said second to said first position.
References Cited (Backward Citations)
US2104094A
Cited
US2333778A
Cited
US2930303A
Cited
US3183520A
Cited
DE1191222B
Cited
US3502013A
Cited
US3447440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |