US3599548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Release means for photographic apparatus
Assignee: Agfa Gevaert AG
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Filing: 1970-04-13
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Granted: 1971-08-17
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Expires: 1990-04-13
Abstract
Abstract A release for motion picture cameras or still cameras wherein the deformation of a diaphragm results in closing of a switch which can open the shutter. A knob is mounted close to the diaphragm and is displaceable by the finger which exerts a deforming stress on the diaphragm to thereby close a second switch which can complete the circuit of the exposure control and/or a battery tester. The knob surrounds at least a portion of the diaphragm to facilitate simultaneous application of finger pressure against the knob and against the central part of the diaphragm.
Inventors
- 👤 Fridolin Hennig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:14
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/58; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
In a photographic camera, a combination comprising a housing including a wall member; a diaphragm member mounted in said wall member and being deformable in response to the application of finger pressure; and actuating element mounted in said housing in the general region of said diaphragm member and being displaceable from a first to a second position in response to the application of finger pressure; and a plurality of functional assemblies provided in said housing and including a first assembly arranged to function in response to deformation of said diaphragm member and a second assembly arranged to function in response to displacement of said actuating element.
Claim 2
Dependent Claim
106 words
In a photographic camera, a combination comprising a housing including a wall member; a diaphragm member mounted in said wall member and being deformable in response to the application of finger pressure; and actuating element mounted in said housing in the general region of said diaphragm member and being displaceable from a first to a second position in response to the application of finger pressure; and a plurality of functional assemblies provided in said housing and including a first assembly arranged to function in response to deformation of said diaphragm member and a second assembly arranged to function in response to displacement of said actuating element.
Claim 3
Dependent Claim
54 words
A combination as defined in claim 1, wherein said actuating element extends outwardly beyond at least one of said members in the first position thereof and is sufficiently close to said diaphragm member to be displaced in response to pressure applied by that finger which is used to effect deformation of said diaphragm member.
Claim 4
Dependent Claim
48 words
A combination as defined in claim 2, wherein said diaphragm member is deformable iN response to the application of finger pressure in a predetermined direction and wherein said actuating element is arranged to move in said predetermined direction during displacement from the first to the second position thereof.
Claim 5
Dependent Claim
28 words
A combination as defined in claim 1, wherein said first assembly includes at least one electric switch which is closed in response to deformation of said diaphragm member.
Claim 6
Dependent Claim
28 words
A combination as defined in claim 1, wherein said second assembly includes at least one electric switch which is closed in response to displacement of said actuating element.
Claim 7
Dependent Claim
49 words
A combination as defined in claim 1, wherein said diaphragm member has a substantially circular outline and wherein said actuating element extends along an arc having its center of curvature in the center of said diaphragm member, said actuating element surrounding at least a portion of said diaphragm member.
Claim 8
Dependent Claim
35 words
A combination as defined in claim 1, further comprising means for biasing said actuating element to said first position thereof with a force which is less than the force necessary to deform said diaphragm member.
Claim 9
Dependent Claim
33 words
A combination as defined in claim 1, wherein said actuating element is reciprocable between said first and second positions and further comprising guide means for confining said actuating element to such reciprocatory movement.
Claim 10
Dependent Claim
22 words
A combination as defined in claim 1, wherein said diaphragm member consists of elastomeric material and tends to assume an undeformed condition.
Claim 11
Dependent Claim
52 words
A combination as defined in claim 1, wherein said diaphragm member is substantially flush with said wall member and wherein said actuating element at least partially surrounds said diaphragm member so that it is normally in the way of and is displaced by the finger which applies pressure to the diaphragm member.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |