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:
May. 27, 2003
Filed:
Feb. 16, 2000
Applicant:
Inventor:
Albert A. McKay, Stoney Creek, CA;
Assignee:
Westinghouse Air Brake Co, Wilmerding, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/304 ;
U.S. Cl.
CPC ...
F16L 1/304 ;
Abstract
The present invention provides a positive gapping device for socket welded fittings. The positive gapping device comprises a socket fitting having a recessed area on at least one end for receiving a pipe section that is engageable with the recessed area of the socket fitting. It further includes a gapping means disposed on one of a surface of the recessed area of the socket fitting facing an end of such pipe section and an end of such pipe section for engagement with such socket fitting. The gapping means providing a space between the socket fitting and such pipe section for reducing residual stresses that result from a welding operation.