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:
Sep. 06, 2016
Filed:
Aug. 30, 2013
Applicant:
George H Blume, Austin, TX (US);
Inventor:
George H Blume, Austin, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 25/00 (2006.01); F04B 53/00 (2006.01); F04B 53/10 (2006.01); F04B 53/16 (2006.01); F16K 1/42 (2006.01); F16K 15/06 (2006.01);
U.S. Cl.
CPC ...
F16K 25/005 (2013.01); F04B 53/007 (2013.01); F04B 53/1032 (2013.01); F04B 53/1087 (2013.01); F04B 53/16 (2013.01); F04B 53/164 (2013.01); F16K 1/42 (2013.01); F16K 15/063 (2013.01);
Abstract
A tungsten carbide seat for high-pressure oilfield well service pumps is disclosed. A bonding agent, in conjunction with an interference tapered fit between the valve seat and fluid end housing eliminates stresses created in prior art interference fits. Three interface embodiments are disclosed: a shallow taper combined with a shoulder, a steep taper without a shoulder, and a compound surface in which the seat has an external concave surface and the housing surface that mates with the seat has a convex surface.