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:
Aug. 19, 1986
Filed:
Dec. 05, 1983
Joannes H Sieben, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a tape cassette having two flanged tape reels or spools arranged for rotation about parallel axes, when the cassette is removed from a tape recorder a brake device prevents rotation of the spools in a direction which will unwind the tape, and also tensions the tape. To facilitate assembly of the cassette, ratchet teeth are provided on both flanges of each spool, with the teeth on one flange oriented in a direction opposite to the teeth on the other flange. The spools are identical and can be interchanged, and each spool can be placed in the housing with either of its flanges uppermost. The brake device is symmetrical about an axis of symmetry, and has one pawl arranged to engage teeth on one spool upper flange, and the other pawl arranged to engage the other spool lower flange.