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:
Jan. 31, 1984
Filed:
Sep. 08, 1982
Applicant:
Inventor:
Alan R Reece, Wylam, GB;
Assignee:
The British Petroleum Company p.l.c., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ; F16L / ;
U.S. Cl.
CPC ...
37193 ; 37 98 ; 405161 ; 405174 ;
Abstract
A trenching device for previously laid cable or pipeline, particularly those laid under water, has a plough (1), means (8) for following the cable or pipeline, a carriage (9), which may be a tractor, connected to the plough through a towing member (6), and vertical pivots between the towing member and the plough and the towing member and the carriage. The double pivot system allows the plough to follow the cable or pipeline independently of the motion of the carriage.