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:
Oct. 01, 1991
Filed:
Jan. 29, 1990
Timothy Bushwood, Windham, ME (US);
Alan Lowry, Canton, MA (US);
Craig Lovecky, Old Orchard Beach, ME (US);
Shape Inc., Biddeford, ME (US);
Abstract
A static tape cassette reel lock is described. In one embodiment a tape reel flange has on the outer circumference thereof a plurality of teeth, and the cassette base includes a plurality of slanted vertical ribs and a centered slanted horizontal rib. The teeth of the flange are able to move past the angled ribs so that the tape reel can rotate in one direction, but does not allow rotation in the other direction. In another embodiment the reel hub includes a chamfered ring of teeth. The cassette base includes a corresponding ratchet ring of ramped teeth. Again, rotation in one direction is allowed, but not in the opposite direction.