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US3209367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens drive mechanism
Assignee: Keystone Camera Co Inc
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Filing: 1962-09-25
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Granted: 1965-09-28
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Expires: 1982-09-25
Abstract
No abstract record available.
Inventors
- 👤 Axei M Heden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:30
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/12; G03B17/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
IN A CAMERA OF THE TYPE HAVING A HOUSING, MEANS DEFINING AN EXPOSURE APERATURE, A PHOTOSENTIVE SURFACE DISPOSED BEHIND SAID EXPOSURE APERTURE, CONTROL MEANS OPERABLE FROM THE EXTERIOR OF SAID HOUSING FOR COTROLLING THE RECORDING OF IMAGES BY SAID, PHOTOSENTIVE SURFACE, AND A LENS ASSEMBLY DISPOSED IN LIGHT TRANSMITTING RELATION IN FRONT OF SAID APERTURE, SAID LENS ASSEMBLY HAVING AT LEAST ONE FIXED LENS AND ONE MOVABLE LENS AND SAID LENSES BEING ALIGNED TO DEFINE AN OPTICAL AXIS ALONG WHICH SAID MOVABLE LENS IS MOVABLE TOWARD AND AWAY FROM SAID FIXED LENS, A MOVABLE LENS DRIVE MECHANISM COMPRISING A ROTATABLE SHAFT MOUNTED PARALLEL TO SAID OPTICAL AXIS AND HAVING A HELICAL GROOVE THEREIN, COUPLING MEANS ATTACHED TO SAID MOVABLY LENS AND HAVING A PORION EXTENDING IN A SUBSTANTIALLY PERPENDICULAR DIRECTION PAST SAID ROTATABLE SHAFT, SAID PORTION BEING RESILIENTLY BIASED INWARDLY TOWARDS SAID SHAFT FOR ENGAGEMENT WITH SAID HELICAL GROOVE IN SEATING RELATION, REVERSIBLE DIRVE MEANS FOR ROTATING SAID SHAFT IN EITHER DIRECTION, AND MEANS CONNECTING SAID DIRVE MECHANISM BETWEEN THE CAMERA HOUSING AND SAID MOVABLE LENS SO THAT THE OPERATION OF SAID DRIVE MEANS ASJUSTS THE POSITION OF SAID MOVABLE LENS RELATIVE TO SAID FIXED LENS.
Claim 2
Dependent Claim
196 words
IN A CAMERA OF THE TYPE HAVING A HOUSING, MEANS DEFINING AN EXPOSURE APERATURE, A PHOTOSENTIVE SURFACE DISPOSED BEHIND SAID EXPOSURE APERTURE, CONTROL MEANS OPERABLE FROM THE EXTERIOR OF SAID HOUSING FOR COTROLLING THE RECORDING OF IMAGES BY SAID, PHOTOSENTIVE SURFACE, AND A LENS ASSEMBLY DISPOSED IN LIGHT TRANSMITTING RELATION IN FRONT OF SAID APERTURE, SAID LENS ASSEMBLY HAVING AT LEAST ONE FIXED LENS AND ONE MOVABLE LENS AND SAID LENSES BEING ALIGNED TO DEFINE AN OPTICAL AXIS ALONG WHICH SAID MOVABLE LENS IS MOVABLE TOWARD AND AWAY FROM SAID FIXED LENS, A MOVABLE LENS DRIVE MECHANISM COMPRISING A ROTATABLE SHAFT MOUNTED PARALLEL TO SAID OPTICAL AXIS AND HAVING A HELICAL GROOVE THEREIN, COUPLING MEANS ATTACHED TO SAID MOVABLY LENS AND HAVING A PORION EXTENDING IN A SUBSTANTIALLY PERPENDICULAR DIRECTION PAST SAID ROTATABLE SHAFT, SAID PORTION BEING RESILIENTLY BIASED INWARDLY TOWARDS SAID SHAFT FOR ENGAGEMENT WITH SAID HELICAL GROOVE IN SEATING RELATION, REVERSIBLE DIRVE MEANS FOR ROTATING SAID SHAFT IN EITHER DIRECTION, AND MEANS CONNECTING SAID DIRVE MECHANISM BETWEEN THE CAMERA HOUSING AND SAID MOVABLE LENS SO THAT THE OPERATION OF SAID DRIVE MEANS ASJUSTS THE POSITION OF SAID MOVABLE LENS RELATIVE TO SAID FIXED LENS.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |