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Patent US3482229A successfully refreshed from Google Patents.
US3482229A
Expired / Lapsed
US
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Tape system with extended speed range
Assignee: Kollmorgen Corp
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Filing: 1966-10-19
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Granted: 1969-12-02
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Expires: 1986-10-19
Abstract
No abstract record available.
Inventors
- 👤 Robert P Burr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:02
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/20; G11B15/46; G11B15/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A TAPE TRANSPORT SYSTEM RESPONSIVE TO START AND STOP COMMANDS, THE COMBINATION OF A DRIVE ELEMENT IN CONSTANT FRICTIONAL ENGAGEMENT WITH SAID TAPE; A DC MOTOR COUPLED TO SAID DRIVE ELEMENT; CIRCUIT MEANS CONNECTED FOR ENERGIZING SAID MOTOR TO ACHIEVE AN ACCELERATION CHARACTERISTIC IN RESPONSE TO A START COMMAND; CIRCUIT MEANS CONNECTED FOR ENERGIZING SAID MOTOR TO ACHIEVE A DECELERATION CHARACTERISTIC IN RESPONSE TO A STOP COMMAND; CIRCUIT MEANS FOR ENERGIZING SAID MOTOR WITH A DRIVE SIGNAL OF A SELECTED MAGNITUDE CORRESPONDING TO A DESIRED RUNNING SPEED DURING THE INTERVAL BETWEEN ACCELERATION AND DECELERATION; AND CIRCUIT MEANS FOR VARYING THE MAGNITUDE OF SAID DRIVE SIGNAL AS A FUNCTION OF THE OCCURRENCE RATE OF SAID COMMANDS.
Claim 2
Dependent Claim
116 words
IN A TAPE TRANSPORT SYSTEM RESPONSIVE TO START AND STOP COMMANDS, THE COMBINATION OF A DRIVE ELEMENT IN CONSTANT FRICTIONAL ENGAGEMENT WITH SAID TAPE; A DC MOTOR COUPLED TO SAID DRIVE ELEMENT; CIRCUIT MEANS CONNECTED FOR ENERGIZING SAID MOTOR TO ACHIEVE AN ACCELERATION CHARACTERISTIC IN RESPONSE TO A START COMMAND; CIRCUIT MEANS CONNECTED FOR ENERGIZING SAID MOTOR TO ACHIEVE A DECELERATION CHARACTERISTIC IN RESPONSE TO A STOP COMMAND; CIRCUIT MEANS FOR ENERGIZING SAID MOTOR WITH A DRIVE SIGNAL OF A SELECTED MAGNITUDE CORRESPONDING TO A DESIRED RUNNING SPEED DURING THE INTERVAL BETWEEN ACCELERATION AND DECELERATION; AND CIRCUIT MEANS FOR VARYING THE MAGNITUDE OF SAID DRIVE SIGNAL AS A FUNCTION OF THE OCCURRENCE RATE OF SAID COMMANDS.
References Cited (Backward Citations)
US3185364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |