Dynamic magnetic information storage or retrieval – General recording or reproducing – Recording-or erasing-prevention
Patent
1983-12-27
1986-01-14
Cardillo, Jr., Raymond F.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Recording-or erasing-prevention
360132, G11B 1504
Patent
active
045648719
ABSTRACT:
Recording tape cassette has pivotable spring means including a record-lockout tab which blocks an opening when the spring means is cocked. When placed on a cassette deck, a fixed tang on the deck releases the cocking, allowing the spring means and its record-lockout tab to pivot to a retracted position, thus unblocking the opening. Thereafter, a feeler on the deck can enter that opening to disable the record function.
REFERENCES:
patent: 3721772 (1973-03-01), Miura et al.
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patent: 4053935 (1977-10-01), Shiba
patent: 4352473 (1982-10-01), Satoh et al.
patent: 4389690 (1983-06-01), Oishi et al.
patent: 4484248 (1984-11-01), Ogiro et al.
patent: 4513330 (1985-04-01), Nakao
Barte William B.
Bowler Alyssa H.
Cardillo, Jr. Raymond F.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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