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. 02, 1993
Filed:
Jun. 12, 1992
Applicant:
Inventors:
Narayan C Saha, Lake Villa, IL (US);
James E Huebler, Brookfield, IL (US);
Assignee:
Institute of Gas Technology, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137318 ; 83171 ;
Abstract
An apparatus for hot tap cutting of plastic pipe comprising an electrode having a cutting edge, means for heating said electrode, and an insulating sheath, means for controlling movement of the electrode, and a housing containing the electrode, said housing sealingly securable to at least a portion of a plastic pipe whereby fluid pressure is maintained in the plastic pipe.