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:
Nov. 23, 1976
Filed:
Aug. 28, 1974
Applicant:
Inventors:
Masao Tomioka, Kawaguchi, JA;
Yasunori Orihara, Tokyo, JA;
Assignee:
Sony Corporation, Tokyo, JA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 85 ; 360 95 ; 360 96 ;
Abstract
In a cassette tape device having tape guide means movable around a tape guide drum, the operating time of the tape guide means is measured to actuate a protecting circuit to stop the tape drive motor if the operative time of the tape guide means exceeds the estimated operating time, as such excessive time would be indicative of trouble in the guide means.