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:
Oct. 27, 1987
Filed:
Mar. 22, 1985
Applicant:
Inventor:
Eric Wood, Wellingborough, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ; E03F / ;
U.S. Cl.
CPC ...
29 3 / ; 166 552 ; 166 558 ; 409143 ;
Abstract
The invention describes a cutter which is for positioning in an underground pipe which is too small for man entry. The cutter is for cutting holes in previously applied pipe lining which cover lateral connections. The cutting must be controlled from above ground. Flexibility and positionability is achieved by mounting the cutter head at the free end of a boom body, the other end of which is mounted through a universal joint to a mounting so that the boom can swing in any direction. The cutter is controlled in its movement by coupling it to a master unit located and controlled above ground.