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. 31, 1982
Filed:
Oct. 20, 1980
George Vitale, Torrance, CA (US);
Discovision Associates, Costa Mesa, CA (US);
Abstract
A spindle clamp assembly for a video recorder-playback machine is provided for securely clamping a video information disc in a precisely centered position upon a rotatable drive spindle for the machine. The clamp assembly comprises a radially expansible sleeve mounted on the spindle and sized for reception into a central opening of the disc. The expansible sleeve cooperates with a wedge collet biased downwardly by a spring within a clamp housing for uniform radial expansion of the sleeve and centering the disc upon the spindle. The clamp housing further includes means for locking engagement with the spindle to position a clamping ring in spring biased engagement with the disc to clamp the disc securely upon the spindle for rotation therewith.