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:
Jul. 03, 1979
Filed:
Jan. 26, 1976
Applicant:
Inventors:
Gunther Bargel, Werne, DE;
Heinz Husemann, Werne, DE;
Assignee:
Gewerkschaft Eisenhutte Westfalia, Westfalia, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
254 / ;
Abstract
A tube-driving apparatus has piston and cylinder units supported on an abutment and internally connected to cylinders forming tension members which surround the units. A thrust collar engageable with the tube or pipe to be driven is slidably supported on floor beams and has clamping rings which can be secured or released from grooves on the exterior of the cylinders spaced-apart in the direction of driving.
Bargel, Gunther. (1979). Tube-driving apparatus (U.S. Patent No. 4159819). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4159819
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile