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:
Nov. 30, 1976
Filed:
Jul. 09, 1975
Adolf Foik, Munich, DT;
Gewerkschaft Eisenhutte Westfalia, Westphalia, DT;
Abstract
Apparatus for and a method of laying a pipe line utilizing an advanceable shield composed of a set of parallel elongate planks supported for longitudinal movement by a frame. These planks have cutting edges and can be shifted individually or in groups by means of rams coupled between the frame and the planks. This shield serves to excavate an open-topped trench and behind the shield is a receptacle connected to move with the frame. This receptacle is a substantially closed vessel resembling a bath tub in cross-section with an open top permitting a pipe section to be lowered therein. A rear end wall of this receptacle has an opening therein which enables the pipe section to be joined up to the end of another pipe section previously installed at the end of the pipe line.