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:
Apr. 11, 1989
Filed:
Jul. 11, 1988
Jack Lander, Danbury, CT (US);
Other;
Abstract
The described invention includes a rotatably mounted drive mechanism which is provided with a plurality of radially oriented tracks. The drive mechanism preferably comprises a pair of opposed drive disks with colinear radial tracks having tooth-like formations arranged therein. A movable sheave segment is mounted in each track. Each sheave segment is engaged by an endless belt when the drive mechanism traverses through a predetermined arc of rotation but is disengaged from the drive belt when outside the predetermined arc of rotation. Toothed engagement blocks are associated with each sheave segment to provide a engagement blocks for locking the sheave segment into place in the track. A wedge cam is associatd with each sheave segment and is forced by belt pressure to rigidly bias the sheave segemnts' toothed engagement blocks against the tooth-like formations in the track. Spring(s) are also provided to resiliently bias the toothed engagement blocks into engagement with the track so that the sheave segments are lightly held in place even when out of engagement with the drive belt.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile