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:
Feb. 14, 1995
Filed:
Aug. 04, 1993
William T Townsend, Weston, MA (US);
Barrett Technology, Inc., Cambridge, MA (US);
Abstract
A pretensioning mechanism for tension element drives includes a drive pinion including a pinion shaft and a pinion sleeve; a first tension element end anchor on the pinion shaft for securing one end of a tension element wound around the drive pinion in a first direction and a second tension element end anchor on the pinion sleeve for securing the end of another tension element wound around the drive pinion in a second, opposite direction; and a worm drive including a worm gear on one of the pinion sleeve and pinion shaft and a worm on the other of the pinion sleeve and pinion shaft for relatively counter-rotating said pinion shaft and pinion sleeve for simultaneously in a single action adjusting and fixing the pretension on the tension element.