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US3836985A Expired / Lapsed US ⏱️ 0.0 years remaining

Miniature camera with front wall cover

Assignee: Balda Werke Photographische Gerate und Kunststof GmbH and Co KG
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Filing: 1973-05-29
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Granted: 1974-09-17
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Expires: 1993-05-29
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Abstract

Abstract A miniature camera having a generally rectangular front wall provided with elongated top and bottom edges and opposed end edges which are substantially shorter than the top and bottom edges. At least one cover plate is pivotally connected to the housing of the camera for swinging movement about an axis parallel to the top and bottom edges of the front wall between a closed position covering at least part of the front wall and an open position uncovering the latter part of the front wall. This part of the front wall is provided with openings through which light can reach an objective and a viewfinder, so that when the cover plate is in its closed position these openings are covered to protect the objective and viewfinder against dust, foreign matter, and the like.

Inventors

  • 👤 K Lange

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:59
CPC Classifications
G; G03; G03B; G03B3/00; G03B3/02; G03B29/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 369 words
In a miniature camera, a housing of relatively thin, flat configuration having a front wall of at least substantially rectangular, narrow, strip-shaped configuration provided with opposed relatively long top and bottom edges and opposed relatively short end edges extending between said top and bottom edges and having a length substantially less than one-half the leNgth of said top and bottom edges, said housing having top and bottom walls extending rearwardly from said top and bottom edges and spaced from each other by the same distance as said top and bottom edges and opposed end walls extending rearwardly from said end edges and spaced from each other by the same distance as said end edges, the said front wall being formed with openings through which light has access to an objective and viewfinder situated in said housing behind said openings, and the latter openings being distributed longitudinally of said front wall with each opening situated between the other opening and one of said end edges, and at least one cover plate situated at all times between a pair of planes which contain said end walls, said cover plate being pivotally connected to said housing for swinging movement about an axis substantially parallel to and situated closely adjacent and extending along said top edge of said front wall between a closed position in front of said front wall covering said front wall openings and an open position uncovering said openings to an extent sufficient to permit light to reach said opening from a location situated forwardly of said front wall, a pair of said cover plates are pivotally connected to said housing for swinging movement about a pair of axes, respectively, which are substantially parallel to and located closely adjacent and extending along said top and bottom edges of said front wall in a manner similar to swingable visors between a closed position covering said openings of said front wall and an open position uncovering said openings, said cover plates having elongated free edges distant from and substantially parallel to said axes, and said free edges engaging each other in the closed position of said cover plates so that the latter do not overlap each other in the closed position thereof.
Claim 2
Dependent Claim 369 words
In a miniature camera, a housing of relatively thin, flat configuration having a front wall of at least substantially rectangular, narrow, strip-shaped configuration provided with opposed relatively long top and bottom edges and opposed relatively short end edges extending between said top and bottom edges and having a length substantially less than one-half the leNgth of said top and bottom edges, said housing having top and bottom walls extending rearwardly from said top and bottom edges and spaced from each other by the same distance as said top and bottom edges and opposed end walls extending rearwardly from said end edges and spaced from each other by the same distance as said end edges, the said front wall being formed with openings through which light has access to an objective and viewfinder situated in said housing behind said openings, and the latter openings being distributed longitudinally of said front wall with each opening situated between the other opening and one of said end edges, and at least one cover plate situated at all times between a pair of planes which contain said end walls, said cover plate being pivotally connected to said housing for swinging movement about an axis substantially parallel to and situated closely adjacent and extending along said top edge of said front wall between a closed position in front of said front wall covering said front wall openings and an open position uncovering said openings to an extent sufficient to permit light to reach said opening from a location situated forwardly of said front wall, a pair of said cover plates are pivotally connected to said housing for swinging movement about a pair of axes, respectively, which are substantially parallel to and located closely adjacent and extending along said top and bottom edges of said front wall in a manner similar to swingable visors between a closed position covering said openings of said front wall and an open position uncovering said openings, said cover plates having elongated free edges distant from and substantially parallel to said axes, and said free edges engaging each other in the closed position of said cover plates so that the latter do not overlap each other in the closed position thereof.
Claim 3
Dependent Claim 41 words
The combination of claim 1, and wherein said cover plates are respectively fixed with gear sectors normal to said axes and meshing with each other for constraining said cover plates to move equally and oppositely between said closed and open positions.
Claim 4
Dependent Claim 19 words
The combination of claim 2 and wherein said gear sectors are situated at each end of said cover plates.
Claim 5
Dependent Claim 27 words
The combination of claim 2 and wherein a means coacts with at least one of said cover plates for releasably retaining the latter in its open position.
Claim 6
Dependent Claim 40 words
The combination of claim 2 and wherein a manually operable means is carried by said housing for slidable movement with respect thereto and is operatively connected with said cover plate for turning the latter between its open and closed positions.
Claim 7
Dependent Claim 19 words
The combination of claim 5 and wherein said manually operable means has a pin-and-slot connection with said cover plate.
Claim 8
Dependent Claim 43 words
The combination of claim 5 and wherein said manually operable means has an elongated rack portion and said cover plate is fixed with a toothed sector meshing with said rack portion to be rotated in response to movement of said manually operable means.
Claim 9
Dependent Claim 49 words
The combination of claim 5 and wherein said manually operable means has a pair of end positions corresponding to the closed and open positions of said cover plate, and means coacting with said manually operable means for releasably retaining the latter in at least one of its end positions.
Claim 10
Dependent Claim 62 words
The combination of claim 5 and wherein a shutter-release member is carried by said housing, said manually operable means having a blocking position blocking operation of said shutter-release member when said cover plate is in its closed position and an unblocking position releasing said shutter-release member for operation when said manually operable means has displaced said cover plate to its open position.
Claim 11
Dependent Claim 42 words
The combination of claim 1 and wherein said cover plates when in said closed position engaging each other along a contact line which is situated forwardly of a plane which contains the pair of axes about which said cover plates are swingable.

References Cited (Backward Citations)

CA681557A Cited
US1814973A Cited
US2266914A Cited
US2431830A Cited
US3399011A Cited
GB1105407A Cited
US3491665A Cited
US3602118A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-09-16 1978-03-18 1978-09-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-16 1982-03-18 1982-09-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-16 1986-03-18 1986-09-17 $7700.00 Window Closed / Lapsed

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