Patent US3662666A successfully refreshed from Google Patents.
US3662666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus with adjustable filter
Assignee: Agfa Gevaert AG
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Filing: 1970-06-11
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Granted: 1972-05-16
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Expires: 1990-06-11
Abstract
Abstract A photographic camera wherein a filter is moved away from the path of incoming scene light in response to attachment of a source of artificial light. The filter is also movable by way of a manually operated selector which can be locked in a position corresponding to inoperative position of the filter. The selector is automatically unlocked in response to attachment of the light source but continues to hold the filter away from the path of incoming light as long as the light source remains attached. A spring returns the filter into the path of incoming light when the light source is detached so that the camera is then ready for making of exposures in daylight.
Inventors
- 👤 Karl Neudecker
- 👤 Friedrich Winler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:22
CPC Classifications
G; G03; G03B; G03B33/00; G03B33/10; G03B33/16; G03B17/00; G03B17/02; G03B17/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
145 words
In a photographic apparatus, a combination comprising a housing; an objective mounted in said housing to admit scene light along a predetermined path; filter means movable in said housing between an operative position in said path and an inoperative position away from said path; a mechanism for moving said filter means in said housing, including a manually operable selector movable between a first position corresponding to one position of said filter means, a second position corresponding to the other position of sAid filter means and a locked third position again corresponding to said other position of said filter means; and an accessory movable with reference to said housing between attached and detached positions, said accessory including a source of artificial light and displacing means operative to effect movement of said selector to second position in response to movement of said accessory to said attached position.
Claim 2
Dependent Claim
145 words
In a photographic apparatus, a combination comprising a housing; an objective mounted in said housing to admit scene light along a predetermined path; filter means movable in said housing between an operative position in said path and an inoperative position away from said path; a mechanism for moving said filter means in said housing, including a manually operable selector movable between a first position corresponding to one position of said filter means, a second position corresponding to the other position of sAid filter means and a locked third position again corresponding to said other position of said filter means; and an accessory movable with reference to said housing between attached and detached positions, said accessory including a source of artificial light and displacing means operative to effect movement of said selector to second position in response to movement of said accessory to said attached position.
Claim 3
Dependent Claim
66 words
A combination as defined in claim 1, wherein said displacing means comprises first and second portions respectively operative to effect movement of said selector to said second position from the first and third positions of said selector so that, when said accessory is attached to said housing, said selector automatically assumes said second position irrespective of the selector''s position in the detached position of said accessory.
Claim 4
Dependent Claim
19 words
A combination as defined in claim 1, wherein said other position is the inoperative position of said filter means.
Claim 5
Dependent Claim
42 words
A combination as defined in claim 1, further comprising means for biasing said selector to said first position to automatically move the selector to such first position in response to movement from said locked third position in detached position of said accessory.
Claim 6
Dependent Claim
21 words
A combination as defined in claim 4, further comprising pin-and-slot means for guiding said selector during movement between said positions thereof.
Claim 7
Dependent Claim
56 words
A combination as defined in claim 5, wherein said pin-and-slot means includes a slot having two mutually inclined portions and a pin extending into said slot, said pin being located in one of said portions in the first and second positions and in the other portion of said slot in the third position of said selector.
Claim 8
Dependent Claim
26 words
A combination as defined in claim 1, wherein said accessory further comprises a support for said source and said displacing means forms part of said support.
Claim 9
Dependent Claim
37 words
A combination as defined in claim 1, wherein said mechanism further comprises a movable unlocking member cooperating with said displacing means to move the selector from third to second position in response to attachment of said accessory.
Claim 10
Dependent Claim
51 words
A combination as defined in claim 8, wherein said unlocking member comprises a lever pivotably mounted in said housing and having a first arm pivotable by said displacing means and a second arm arranged to move said selector from third to second position in response to pivoting of said first arm.
Claim 11
Dependent Claim
68 words
A combination as defined in claim 9, wherein said housing has an aperture and said first arm includes a projection extending outwardly through and beyond said aperture, said accessory further comprising a support for said source, said displacing means forming part of said support and being arranged to pivot said first arm by way of said projection in response to movement of the accessory to said attached position.
Claim 12
Dependent Claim
25 words
A combination as defined in claim 9, wherein said displacing means comprises fastener means which secures said accessory to said housing in said attached position.
Claim 13
Dependent Claim
92 words
A combination as defined in claim 8, wherein said displacing means comprises a first portion which cooperates with said unlocking member, and a second portion arranged to move the selector from first to second position in response to attachment of said accessory so that the selector automatically assumes said second position in response to such attachment irrespective of the position of said selector in detached position of said accessory, said selector engaging the second portion of said displacing means in the second position thereof while the accessory is attached to said housing.
Claim 14
Dependent Claim
27 words
A combination as defined in claim 12, further comprising means for biasing said selector from second position to at least one of said first and third positions.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |