US3431052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic focusing device for photographic reproducer
Assignee: Agfa Gevaert AG
•
Filing: 1966-10-21
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Granted: 1969-03-04
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Expires: 1986-10-21
Abstract
No abstract record available.
Inventors
- 👤 Alex Jacknau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
G; G03; G03B; G03B3/00; G03B3/10; G03B27/00; G03B27/32; G03B27/34; G03B27/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN AUTOMATIC FOCUSING DEVICE FOR A PHOTOGRAPHIC REPRODUCER MOUNTED UPON A COLUMN UPON WHICH IT IS VERTICALLY ADJUSTABLE RELATIVE TO ITS OBJECT SURFACE, SAID REPRODUCER HAVING A LENS AND IMAGE PLANE THE DISTANCE BETEWEEN WHICH IS ADJUSTABLE IN ACCORDANCE WITH THE DISTANCE OF SAID REPRODUCER FROM SAID OBJECT SURFACE, SAID DEVICE COMPRISING A TUBULAR HOUSING CONNECTED TO SAID REPRODUCER, SAID LENS BEING ATTACHED TO A LENS TUBE WHICH IS MOUNTED TO SLIDE AXIALLY WITHIN SAID TUBULAR HOUSING WHEREBY ITS DISTANCE FROM SAID IMAGE PLANE IS VARIED, CIRCULAR CAM AND FOLLOWER MEANS MOUNTED WITHIN SAID TUBULAR HOUSING AND PROVIDING AXIAL MOVEMENT THEREWITHIN IN RESPONSE TO ITS ROTATION, CONNECTING MEANS COUPLING SAID LENS TUBE TO SAID CIRCULAR CAM AND FOLLOWER MEANS WHEREBY AXIAL MOVEMENT OF SAID LENS TUBE IS OBTAINED IN RESPONSE TO SAID ROTATION OF SAID CIRCULAR CAM AND FOLLOWER MEANS, CIRCULAR DRIVE MEANS MOUNTED UPON SAID TUBULAR HOUSING AND CONNECTED TO SAID CIRCULAR CAM AND FOLLOWER MEANS WHEREBY SAID CIRCULAR CAM AND FOL-
Claim 2
Dependent Claim
163 words
AN AUTOMATIC FOCUSING DEVICE FOR A PHOTOGRAPHIC REPRODUCER MOUNTED UPON A COLUMN UPON WHICH IT IS VERTICALLY ADJUSTABLE RELATIVE TO ITS OBJECT SURFACE, SAID REPRODUCER HAVING A LENS AND IMAGE PLANE THE DISTANCE BETEWEEN WHICH IS ADJUSTABLE IN ACCORDANCE WITH THE DISTANCE OF SAID REPRODUCER FROM SAID OBJECT SURFACE, SAID DEVICE COMPRISING A TUBULAR HOUSING CONNECTED TO SAID REPRODUCER, SAID LENS BEING ATTACHED TO A LENS TUBE WHICH IS MOUNTED TO SLIDE AXIALLY WITHIN SAID TUBULAR HOUSING WHEREBY ITS DISTANCE FROM SAID IMAGE PLANE IS VARIED, CIRCULAR CAM AND FOLLOWER MEANS MOUNTED WITHIN SAID TUBULAR HOUSING AND PROVIDING AXIAL MOVEMENT THEREWITHIN IN RESPONSE TO ITS ROTATION, CONNECTING MEANS COUPLING SAID LENS TUBE TO SAID CIRCULAR CAM AND FOLLOWER MEANS WHEREBY AXIAL MOVEMENT OF SAID LENS TUBE IS OBTAINED IN RESPONSE TO SAID ROTATION OF SAID CIRCULAR CAM AND FOLLOWER MEANS, CIRCULAR DRIVE MEANS MOUNTED UPON SAID TUBULAR HOUSING AND CONNECTED TO SAID CIRCULAR CAM AND FOLLOWER MEANS WHEREBY SAID CIRCULAR CAM AND FOL-
References Cited (Backward Citations)
US2940358A
Cited
US3179028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |