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. 28, 1998
Filed:
Mar. 29, 1996
Darron J Phillips, Arlington, TX (US);
William J Eldridge, Grand Prairie, TX (US);
Larry V Spalding, Fort Worth, TX (US);
Oil States Industries, Inc., Arlington, TX (US);
Abstract
A pile gripper which uniformly engages a plurality of gripper teeth against a pile during engagement and uniformly retracts those same gripper teeth during disengagement is described. In one embodiment, the pile gripper is comprised of a an elastomeric bag, a plurality of segments arranged circumferentially on the pile-side of the gripper's structure, and a plurality of segment retraction elements. Each segment has a plurality of teeth which are used to 'grip' an anchor pile. Segment teeth direction may alternate from segment to segment or segment group to segment group. Each segment group comprises a plurality of N segments, and each segment in a segment group is operatively coupled via grouping bars to the other segments in the segment group. The combination of uniform segment teeth movement during both engagement and disengagement provides significantly more load bearing capability for a specified gripper assembly length or, alternatively, a significantly shorter gripper assembly for a specified load bearing capability than prior art grippers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile