The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 1986
Filed:
Jun. 20, 1983
Applicant:
Inventors:
David B Francis, Mt. Kisco, NY (US);
Ronald L Meggison, Willingboro, NJ (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; A61B / ;
U.S. Cl.
CPC ...
360137 ; 128711 ; 346 / ; 360-6 ;
Abstract
A magnetic tape recording and playback system having a tape cassette and battery pack joined by a frangible connection in an integral assembly, wherein for recording the assembly provides battery power to the recorder and the recorder provides recording signals to the cassette, and for playback, the battery is broken away from the cassette and discarded and the cassette is inserted into the playback unit, which can accept only the cassette without the battery. This prevents re-use of the cassette in the recorder and assures the use of a fresh battery for each recording session.