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:
Dec. 07, 1976
Filed:
Jan. 02, 1976
Applicant:
Inventor:
Adolf Foik, Munich-Krailling, DT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
254 / ;
Abstract
A tube-driving apparatus which has a frame with floor-engaging beams and abutment-forming beams arranged perpendicular thereto. A pressure ring, which engages on a pipe or tube to be driven, is supported by guide shoes slidably engaging on the floor beams. Piston and cylinder units are coupled with ball-and-socket joints to the pressure ring and the abutment-forming beams and serve to advance the ring to drive the pipe into the ground. A pivotable rail is located by guide means on the exterior of the ring and is adjusted to partly rotate the ring about its axis parallel to the floor beams to set up a controllable torsional force in the ring which can be imparted to the driven pipe.