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:
Jul. 25, 1995
Filed:
Aug. 05, 1991
Applicant:
Inventors:
J W Wood, Charlotte, NC (US);
Robert J Lowery, Charlotte, NC (US);
Robert L Knipschield, Charlotte, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228 42 ; 219 / ; 21913001 ; 269 481 ;
Abstract
A method and apparatus for use in welding pipe. The apparatus includes means for viewing the interior of the pipe, means for establishing a predetermined atmosphere in the weld zone and means for clearing liquid from the interior of the pipe.