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. 19, 1991
Filed:
Jul. 16, 1987
Applicant:
Inventors:
Edward J Crook, Tulsa, OK (US);
C Ronald Garrett, Ramona, OK (US);
Assignee:
The Crosby Group, Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
254228 ; 24 6 / ;
Abstract
This is a chain tensioning system which uses a link section and a hydraulic power section. The link section is rectangular in shape and has a cross-link which is secured by a rod to a load hook external of the link. A securing nut is provided on the threaded rod inside the link frame. A hydraulic power section is used to move the cross-link away from the end of the link section and the securing nut then secures the cross-link in the tightened position. The hydraulic power section is then relaxed and removed and can be used on another appropriate link section.