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. 26, 1977
Filed:
Sep. 12, 1975
Applicant:
Inventors:
Robert A Kraus, Tustin, CA (US);
Edmund J Kraus, Tustin, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25D / ;
U.S. Cl.
CPC ...
81 5 / ; 192 / ;
Abstract
The invention described herein is a ratchet-type torque release wrench for the precise setting of the residual axial tension (clamping force) to be retained within a threaded fastening system under installation, wherein as the threaded fastening system's bolt attains a predetermined value of axial tension the manually perceptible spontaneous release of only a minor portion of the total torque applied to either the fastening system under installation signals to the installation operator the completion of the fastening system's installation sequence.