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, 1988
Filed:
Nov. 25, 1986
Applicant:
Inventor:
Bernd G Pietras, Wedemark, DE;
Assignee:
Weatherford Oil Tool GmbH, Langenhagen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 5716 ; 81 5734 ;
Abstract
A machine for clamping a pipe socket between clamping jaws of a socket screwing-on machine as a function of torque wherein, the clamping jaws of the screwing head are advanced to the socket via a thrust-crank drive of adjustable effective range. Without the need to exchange clamping jaws and other associated parts, it is possible to cover a large clamping range, and the clamping force which increases with the torque can be adjusted.
Pietras, Bernd. (1988). Machine for making up and breaking out pipe joints (U.S. Patent No. 4739681). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4739681
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile