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US3777070A Expired / Lapsed US ⏱️ 0.0 years remaining

Tape guide and magnetic head-pressure pad spacer

Assignee: MIDWRSTERN INSTRUMENTS NC TULSA OK A CORP OF Co
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Filing: 1971-09-23
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Granted: 1973-12-04
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Expires: 1991-09-23
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Abstract

Abstract For use in a magnetic tape transport assembly wherein a pressure pad carried by a tape cartridge is adapted to urge the tape toward a read or write head, and in combination with said head, the improvement comprising spacer means projecting at the tape side of the head for seating the pad at a predetermined space from the head characterized in that the tape remains free for travel lengthwise in said space adjacent the head and out of contact with the pad.

Inventors

  • 👤 F Bumb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 13:58
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/62

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 176 words
In a magnetic tape transport assembly wherein a pressure pad carried by a Philips design tape cassette is adapted to urge the tape toward a read or write head, and in combination with said head, the improvement comprising spacer means including upper and lower sections projecting at the tape side of the head and intercepting and seating upper and lower portions of the pad resiliently urged against spacer section terminals at a predetermined spacing from the head characterized in that the tape remains free for travel lengthwise in said space adjacent the head and out of contact with the pad, said spacing substantially exceeding the tape thickness, the pad being pushed away from the head by spacer means, sais spacer means upper and lower sections spaced apart vertically by an amount less than the width of said Philips design cassette pad but greater than the tape width, Said assembly being free of structure proximate the head for urging the tape against the head, and there also being tape edge guide shoulders spaced from said spacer means.
Claim 2
Dependent Claim 176 words
In a magnetic tape transport assembly wherein a pressure pad carried by a Philips design tape cassette is adapted to urge the tape toward a read or write head, and in combination with said head, the improvement comprising spacer means including upper and lower sections projecting at the tape side of the head and intercepting and seating upper and lower portions of the pad resiliently urged against spacer section terminals at a predetermined spacing from the head characterized in that the tape remains free for travel lengthwise in said space adjacent the head and out of contact with the pad, said spacing substantially exceeding the tape thickness, the pad being pushed away from the head by spacer means, sais spacer means upper and lower sections spaced apart vertically by an amount less than the width of said Philips design cassette pad but greater than the tape width, Said assembly being free of structure proximate the head for urging the tape against the head, and there also being tape edge guide shoulders spaced from said spacer means.

References Cited (Backward Citations)

US2612565A Cited
US2617890A Cited
US3417938A Cited
US3378266A Cited
US3322360A Cited
US3445116A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-03 1977-06-04 1977-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-03 1981-06-04 1981-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-03 1985-06-04 1985-12-04 $7700.00 Window Closed / Lapsed

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