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.

Date of Patent:
Mar. 17, 1981

Filed:

May. 14, 1979
Applicant:
Inventor:

Etienne A Schatteman, Wemmel, BE;

Assignee:

Staar S.A., Brussels, BE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G11B / ;
U.S. Cl.
CPC ...
242201 ; 242186 ; 242190 ;
Abstract

A bi-directional magnetic tape recording and playback apparatus having means for assuring the correct operation of the take-up reel. A solenoid-controlled intermediate gear in the drive train to the reel spindles is moved between two operative positions in order to transfer the magnetic tape from the tape supply reel to the take-up reel whatever the direction of motion of the tape. The apparatus includes a mechanical element associated with the intermediate gear for producing an electrical indication of the intermediate gear being in an operative position. This electrical indication is processed by an electronic circuit for producing an output signal when the positioning of the intermediate gear is incorrect.


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Schatteman, Etienne. (1981). Tape reversal control (U.S. Patent No. 4256274). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4256274

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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