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:
Nov. 12, 1991
Filed:
Feb. 28, 1990
Hans Muller, Zofingen, CH;
Grapha-Holding AG, Hergiswil, CH;
Abstract
A link chain has alternating first and second links which are articulately connected to each other by universal joints. Each first link carries a gripper with a fixed jaw and a second jaw pivotable between first and second end positions through a dead-center intermediate position. Springs are provided to permanently bias each second jaw to either of the two end positions, and each second jaw is connected with a follower which can track a set of cams at two spaced-apart stations to move the second jaw between its end positions. Each link of the chain carries two shafts for pairs of roller followers which track the lateral edge faces of two flanges of an elongated guide rail having an H-shaped cross-sectional outline. The guide rail is bent and/or twisted, if necessary, to establish a helical, arcuate, looped and/or other complex path for advancement of successive links between the two stations. An additional follower of each link tracks the one or the other flange at one side of the web which connects the flanges of the rail to each other.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile