Tape recorder cassette with tamper-proof counter

Details Tape recorder cassette with tamper-proof counter Tape recorder cassette with tamper-proof counter

1983-01-14

1986-04-29

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record medium

In container

360137, 360 93, 242199, 116309, 235103, B65H 7500, G11B 2302

Patent

active

045861013

ABSTRACT:
A tape cassette having mounted between the two closely adjacent tape reels an oscillating sensor arm in substantially continuous contact with the reeled tape on the two reels, and a digital counter mechanism which is advanced one step for each double oscillation of said arm.

REFERENCES:
patent: 2756279 (1956-07-01), Lang
patent: 2944750 (1960-07-01), Hall, Jr.
patent: 3604624 (1971-09-01), Miura et al.
patent: 3630170 (1971-12-01), Christe
patent: 3678215 (1972-07-01), Kihara
patent: 3785551 (1974-01-01), Regan
patent: 3995319 (1974-12-01), Harris
patent: 4274605 (1981-06-01), Gruber, Jr.
patent: 4475222 (1984-10-01), Egendorf

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