Digitizer with power assisted index member
Abstract
Abstract A DIGITZER FOR REDUCING A LINE OR EDGE OF A MAP, GRAPH, DRAWING OR THE LIKE TO COORDINATE INFORMATION INCLUDES AN INDEX MEMBER, SUCH AS A RETICLE, MANUALLY MOVABLE ALONG THE LINE OR EDGE BEING DIGITIZED. THE INDEX MEMBER IS ATTRACHED TO X AND Y STRINGS EACH OF WHICH IS WOUND IN PART ON AN ASSOCIATED DRUM SO AS THE INDEX MEMBER IS MOVED ALONG THE LINE OR EDGE ONE OR THE OTHER OR BOTH OF THE STRINGS IS UNWOUND FROM OR WOUND ONTO ITS DRUM. THE DRUMS ARE MOUNTED ON CARRIAGES MOVABLE IN THE X AND Y DIRECTIONS ALONG TWO EDGES OF THE DIGITIZER AND THE CARRIAGES ARE IN TURN DRIVEN BY DRIVE MOTORS WHICH ARE CONTROLLED BY THE MOVEMENT OF THE STRINGS SO THAT THE CARRIAGES ARE AUTOMATICALLY SLAVED TO THE MOVEMENT OF THE STRINGS AND THEREBY MAINTAINED IN ALIGNED RELATIONSHIP WITH THE INDEX MEMBER. ENCODERS CONNECTED WITH THE DRUMS OR THE CARRIAGE DRIVE SYSTEM PROVIDE THE DESIRED OUTPUT INFORMATION.
Inventors
- 👤 Heinz Joseph Gerber
- 👤 Dale G Blake
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |