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:
Aug. 16, 2016
Filed:
May. 22, 2013
Applicant:
George H Blume, Austin, TX (US);
Inventor:
George H Blume, Austin, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 21/04 (2006.01); F16K 1/36 (2006.01); F16K 15/06 (2006.01); F04B 15/02 (2006.01); F04B 53/10 (2006.01);
U.S. Cl.
CPC ...
F16K 21/04 (2013.01); F04B 15/02 (2013.01); F04B 53/10 (2013.01); F16K 1/36 (2013.01); F16K 15/063 (2013.01); Y10T 137/85978 (2015.04);
Abstract
A positive displacement pump fluid end with multiple fluid chambers and each fluid chamber comprising a valve body, valve seal, seat, spring, and external guide. External top male stem guide is integral to the fluid end discharge cover or the suction valve spring retainer. Female guide is internal and integral with the valve body. When the valve opens hydrodynamic forces and moments align the valve to prevent rotation. An embodiment features tapered male and female guide members to further assist in correct alignment of the valve with the seat. Various additional embodiments assist in venting any trapped fluids between the male and female portions of the guide.