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. 04, 1983
Filed:
Mar. 12, 1980
Applicant:
Inventors:
William F Nanstiel, Forest Hills, PA (US);
Ronald F Antol, North Huntingdon, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29727 ; 29252 ;
Abstract
The plug removal apparatus comprises a ram mounted in a rod both of which are mounted in an activating cylinder. The rod is capable of being scrwed into the plug such that when the cylinder is activated, the cylinder causes the ram to push the expander relative to the plug while the rod holds the plug thereby relieving the pressure on the plug. The activating cylinder may then be activated so as to extract the plug from the tube using short strokes. The apparatus is capable of being used manually or remotely so as to be able to remove plugs from heat exchangers and nuclear steam generators.