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US3648951A Expired / Lapsed US ⏱️ 0.0 years remaining

Switching system for tape rewind

Assignee: Scanfax Systems Corp
•
Filing: 1970-01-05
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Granted: 1972-03-14
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Expires: 1990-01-05
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Abstract

Abstract A switching system for a tape rewind operation is described as including a pair of switches in a rewind motor circuit. Both switches are connected in series relationship with the motor so that the motor attains a shut off condition when either switch is in the open position.

Inventors

  • 👤 James R Trammell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 16:32
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/24; G11B23/00; G11B23/02; G11B23/04; G11B23/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 190 words
A tape system for moving a tape in a predetermined operation sequence comprising a tape cassette including first and second spindles in which cassette said tape is wound about said first spindle at the initiation of said sequence, a cassette-receiving module into which said cassette is insertable, a base panel to which said module is rotatably mounted, said cassette defining a tape window for exposing said tape and said module being rotatably movable between a first position parallel to said base panel and a second position at an angle to said base panel, said system further including a first resettable switch which is opened upon completion of said sequence, a first switch plunger proximate said first switch and said tape window for actuating said first switch to an opened position upon said tape completely unwinding from said first spindle, a second switch, a second switch activator upstanding from said base panel and operable to close said second switch upon said module assuming said parallel position with said cassette inserted thereto, said first and second switches being connected in series with a motor for unwinding said tape from said first spindle.
Claim 2
Dependent Claim 190 words
A tape system for moving a tape in a predetermined operation sequence comprising a tape cassette including first and second spindles in which cassette said tape is wound about said first spindle at the initiation of said sequence, a cassette-receiving module into which said cassette is insertable, a base panel to which said module is rotatably mounted, said cassette defining a tape window for exposing said tape and said module being rotatably movable between a first position parallel to said base panel and a second position at an angle to said base panel, said system further including a first resettable switch which is opened upon completion of said sequence, a first switch plunger proximate said first switch and said tape window for actuating said first switch to an opened position upon said tape completely unwinding from said first spindle, a second switch, a second switch activator upstanding from said base panel and operable to close said second switch upon said module assuming said parallel position with said cassette inserted thereto, said first and second switches being connected in series with a motor for unwinding said tape from said first spindle.

References Cited (Backward Citations)

US3146316A Cited
US2987265A Cited
US3196214A Cited
US3185401A Cited
US3439919A Cited
US3411730A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-14 1975-09-13 1976-03-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-14 1979-09-13 1980-03-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-14 1983-09-13 1984-03-14 $7700.00 Window Closed / Lapsed

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