US3185083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon drive mechanism
Assignee: Control Data Corp
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Filing: 1961-09-21
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Granted: 1965-05-25
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Expires: 1981-09-21
Abstract
No abstract record available.
Inventors
- 👤 Frank G Pensavecchia
- 👤 Hugh R Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:36
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/14; B41J33/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PRINTER RIBBON DRIVE MECHANISM, COMPRISING A CONTINUOUSLY DRIVING MOTOR, AN INTERMEDIATE SHAFT DRIVEN BY SAID MOTOR, END SHAFTS ALIGNED WITH SAID INTERMEDIATE SHAFT, A RIBBON SPOOL MOUNTED ON EACH OF SAID END SHAFTS, A MAGNITIC CLUTCH CONNECTION BETWEEN SAID INTERMEDIATE SHAFT AND EACH OF SAID END SHAFT, A TYPEWRITER TYPE RIBBON HAVING ENDS SECURED TO SAID SPOOLS AND THEADED THROUGH SAID PRINTER, SPRING MEANS FOR MAINTAINING SAID RIBBON IN TENSION, AND MEANS FOR AUTOMATICALLY REVERSING THE DIRECTION OF THE RIBBON DRIVE, SAID REVERSING MEANS INCLUDING A SWITCH MOUNTED ADJACENT EACH OF SAID SPOOLS, A SWITCH ACTUATING ARM PIVOTALLY FASTENED TO EACH OF SAID SWITCHES, A PAIR OF METAL EYELETS FASTENED ON SAID RIBBON
Claim 2
Dependent Claim
114 words
A PRINTER RIBBON DRIVE MECHANISM, COMPRISING A CONTINUOUSLY DRIVING MOTOR, AN INTERMEDIATE SHAFT DRIVEN BY SAID MOTOR, END SHAFTS ALIGNED WITH SAID INTERMEDIATE SHAFT, A RIBBON SPOOL MOUNTED ON EACH OF SAID END SHAFTS, A MAGNITIC CLUTCH CONNECTION BETWEEN SAID INTERMEDIATE SHAFT AND EACH OF SAID END SHAFT, A TYPEWRITER TYPE RIBBON HAVING ENDS SECURED TO SAID SPOOLS AND THEADED THROUGH SAID PRINTER, SPRING MEANS FOR MAINTAINING SAID RIBBON IN TENSION, AND MEANS FOR AUTOMATICALLY REVERSING THE DIRECTION OF THE RIBBON DRIVE, SAID REVERSING MEANS INCLUDING A SWITCH MOUNTED ADJACENT EACH OF SAID SPOOLS, A SWITCH ACTUATING ARM PIVOTALLY FASTENED TO EACH OF SAID SWITCHES, A PAIR OF METAL EYELETS FASTENED ON SAID RIBBON
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |