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:
Jul. 10, 1979
Filed:
Apr. 05, 1977
Warren L Dalziel, Monte Sereno, CA (US);
Shugart Associates, Sunnyvale, CA (US);
Abstract
A positioning mechanism for a read/write head of recording/playback machine of the type utilizing discs upon which information is magnetically stored in concentric tracks includes a stationary guide member, a carriage which is connected to the guide member and which carries a read/write head for compliance to the surface of a disc upon which information is magnetically stored, a single capstan member which is driven to rotate incrementally from one angular position to another, and a flexible nonstretchable band which is wound at least once about the capstan and which has opposite ends extending from the capstan to connection to the carriage. During the period of rotation of the capstan, one end portion of the band is fed off the capstan while the opposite end portion is concommitantly wound onto the capstan; the tension exerted by the end portion which is wound onto the capstan draws the carriage member into motion relative to the guide member.