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. 13, 1985
Filed:
Dec. 22, 1982
William J Gervais, Northridge, CA (US);
Rosstream Research Assoc. Ltd., Cerritos, CA (US);
Abstract
A mechanism to protect a reel of tape against the risk of inadvertent over-writing or erasure, including an actuator installed in the reel hub and rotatable between two angular positions from the front face of the reel, even when mounted on a tape drive. The axis of rotation of the actuator is offset from that of the reel, and the actuator has a peripheral portion that presents a sloping surface toward the rear of the reel, to engage an axially movable rod disposed along the reel axis. Rotation of the actuator from one angular position to another causes axial movement of the rod, which is conventionally detected and employed to control the write protection status of the tape reel.