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US3117262A Expired / Lapsed US ⏱️ 0.0 years remaining

Plural motor tension and braking control system

Assignee: 3M Co
•
Filing: 1962-01-12
•
Granted: 1964-01-07
•
Expires: 1982-01-12
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Abstract

No abstract record available.

Inventors

  • 👤 John T Mullin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:36
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/44

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 203 words
IN COMBINATION FOR USE WITH A TAPE, FIRST AND SECOND REELS OPERATIVELY COUPLED TO THE TAPE FOR DRIVING THE TAPE BETWEEN THE FIRST AND SECOND REELS, FIRST AND SECOND MOTOR MEANS RESPECTIVELY COUPLED TO THE FIRST AND SECOND REELS FOR DRIVING THE FIRST AND SECOND REELS, MEANS ELECTRICALLY COUPLED TO THE FIRST AND SECOND MOTOR MEANS FOR ENERGIZING THE FIRST AND SECOND MOTOR MEANS FOR OPERATION AND FOR OBTAINING THE PRODUCTION OF A GREATER FORCE BY THE FIRST MOTOR MEANS THAN BY THE SECOND MOTOR MEANS TO OBTAIN THE MOVEMENT OF THE TAPE FROM THE SECOND REEL TO THE FIRST REEL, SWITCH MEANS HAVING OPEN AND CLOSED STATES AND OPERATIVELY COUPLED TO THE LAST MENTIONE MEANS TO BE IN THE OPEN STATE DURING THE ENERGIZING OF THE FIRST AND SECOND MOTOR MEANS AND TO BE IN THE CLOSED STATE UPON AN INTERRUPTION IN THE ENERGIZING OF THE FIRST AND SECOND MOTOR MEANS, AND UNIDIRECTIONAL MEANS CONNECTED TO THE SWITCH MEANS AND THE SECOND MOTOR MEANS IN A DIRECTION TO OBTAIN A FLOW OF CURRENT THROUGH THE SECOND MOTOR MEANS OPPOSING THE MOVEMENT OF THE TAPE AND QUICKLY STOPPING THE SECOND MOTOR MEANS UPON AN INTERRUPTION IN THE ENERGIZING OF THE SECOND MOTOR MEANS.
Claim 2
Dependent Claim 203 words
IN COMBINATION FOR USE WITH A TAPE, FIRST AND SECOND REELS OPERATIVELY COUPLED TO THE TAPE FOR DRIVING THE TAPE BETWEEN THE FIRST AND SECOND REELS, FIRST AND SECOND MOTOR MEANS RESPECTIVELY COUPLED TO THE FIRST AND SECOND REELS FOR DRIVING THE FIRST AND SECOND REELS, MEANS ELECTRICALLY COUPLED TO THE FIRST AND SECOND MOTOR MEANS FOR ENERGIZING THE FIRST AND SECOND MOTOR MEANS FOR OPERATION AND FOR OBTAINING THE PRODUCTION OF A GREATER FORCE BY THE FIRST MOTOR MEANS THAN BY THE SECOND MOTOR MEANS TO OBTAIN THE MOVEMENT OF THE TAPE FROM THE SECOND REEL TO THE FIRST REEL, SWITCH MEANS HAVING OPEN AND CLOSED STATES AND OPERATIVELY COUPLED TO THE LAST MENTIONE MEANS TO BE IN THE OPEN STATE DURING THE ENERGIZING OF THE FIRST AND SECOND MOTOR MEANS AND TO BE IN THE CLOSED STATE UPON AN INTERRUPTION IN THE ENERGIZING OF THE FIRST AND SECOND MOTOR MEANS, AND UNIDIRECTIONAL MEANS CONNECTED TO THE SWITCH MEANS AND THE SECOND MOTOR MEANS IN A DIRECTION TO OBTAIN A FLOW OF CURRENT THROUGH THE SECOND MOTOR MEANS OPPOSING THE MOVEMENT OF THE TAPE AND QUICKLY STOPPING THE SECOND MOTOR MEANS UPON AN INTERRUPTION IN THE ENERGIZING OF THE SECOND MOTOR MEANS.

References Cited (Backward Citations)

USRE23312E Cited
US2168777A Cited
US2397557A Cited
US2677082A Cited
US2912632A Cited
US3045937A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-01-06 1967-07-08 1968-01-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-01-06 1971-07-08 1972-01-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-01-06 1975-07-08 1976-01-07 $7700.00 Window Closed / Lapsed

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