US3185283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper advance control circuit in high speed printers
Assignee: Control Data Corp
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Filing: 1961-09-25
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Granted: 1965-05-25
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 Merlin D Spitsbergen
- 👤 Frank G Pensavecchia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/36; B41J11/42; B41J11/44; B65; B65H; B65H2403/00; B65H2403/70; B65H2403/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PRINTER FOR PRINTING ON PAPER, SAID PRINTER HAVING PAPER ADVANCE MEANS WHICH INCLUDE A CLUTCH MECHANISM AND AN ELECTRICAL ACTUATING COIL WITH SAID CLUTCH MECHANISM; THE IMPROVEMENT COMPRISING AN ELECTRONIC CONTROL CIRCUIT INCLUDING A RELATIVELY HIGH POWER CIRCUIT CONNECTED TO THE COIL OF SAID PAPER ADVANCE MEANS FOR INITIALLY ENERGIZING THE COIL ON RECEIVING A PAPER ADVANCE SIGNAL, A RELATIVELY LOW POWER CIRCUIT ALSO CONNECTED TO SAID COIL IN PARALLEL WITH SAID HIGH POWER CIRCUIT, AND THE HIGH POWER CIRCUIT INITIALLY ENERGIZED ON THE CONTROL CIRCUIT RECEIVING A PAPER ADVANCE SIGNAL, AND THE LOW POWER CIRCUIT MAINTAINING THE COIL ENERGIZED UNTIL A STOP PAPER ADVANCE SIGNAL IS RECEIVED THEREBY, AND A STOP PAPER ADVANCE CIRCUIT MEANS TO PROVIDE SAID STOP PAPER ADVANCE SIGNAL, SAID CIRCUIT MEANS CONNECTED IN SERIES WITH THE LOW POWER CIRCUIT FOR PROVIDING SAID STOP PAPER ADVANCE SIGNAL WHICH IS OPERABLE TO DEENERGIZE SAID COIL.
Claim 2
Dependent Claim
150 words
IN A PRINTER FOR PRINTING ON PAPER, SAID PRINTER HAVING PAPER ADVANCE MEANS WHICH INCLUDE A CLUTCH MECHANISM AND AN ELECTRICAL ACTUATING COIL WITH SAID CLUTCH MECHANISM; THE IMPROVEMENT COMPRISING AN ELECTRONIC CONTROL CIRCUIT INCLUDING A RELATIVELY HIGH POWER CIRCUIT CONNECTED TO THE COIL OF SAID PAPER ADVANCE MEANS FOR INITIALLY ENERGIZING THE COIL ON RECEIVING A PAPER ADVANCE SIGNAL, A RELATIVELY LOW POWER CIRCUIT ALSO CONNECTED TO SAID COIL IN PARALLEL WITH SAID HIGH POWER CIRCUIT, AND THE HIGH POWER CIRCUIT INITIALLY ENERGIZED ON THE CONTROL CIRCUIT RECEIVING A PAPER ADVANCE SIGNAL, AND THE LOW POWER CIRCUIT MAINTAINING THE COIL ENERGIZED UNTIL A STOP PAPER ADVANCE SIGNAL IS RECEIVED THEREBY, AND A STOP PAPER ADVANCE CIRCUIT MEANS TO PROVIDE SAID STOP PAPER ADVANCE SIGNAL, SAID CIRCUIT MEANS CONNECTED IN SERIES WITH THE LOW POWER CIRCUIT FOR PROVIDING SAID STOP PAPER ADVANCE SIGNAL WHICH IS OPERABLE TO DEENERGIZE SAID COIL.
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 |