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. 07, 1987
Filed:
Feb. 14, 1985
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 ...
405181 ; 37193 ; 405179 ; 405174 ;
Abstract
A plough for burying cable or pipe comprises at least two cutters laterally spaced apart, one being offset at an angle relative to the other for making two spaced apart cuts in a substrate to form a wedge of material. Means are provided for lifting and moving the wedge upwards and sideways to form a trench and for guiding the cable or pipe into the trench under the lifted wedge. The plough cuts an improved furrow shape, lifts the furrow slice through the minimum height in order to permit the cable or pipe to be inserted below it and allows the material to be replaced with minimun disturbence.