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. 05, 2011
Filed:
Jul. 02, 2007
Applicants:
Ken Lum, Fresno, CA (US);
Dale Kempf, Manton, CA (US);
Inventors:
Ken Lum, Fresno, CA (US);
Dale Kempf, Manton, CA (US);
Assignee:
Grundfos Pumps Corporation, Olathe, KS (US);
Primary Examiner:
Int. Cl.
CPC ...
G05D 23/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
A valve assembly for a water circulation system includes a valve body defining a bypass passage between a hot water side and a cold water side of the valve body. The bypass passage has a valve seat therein. A bypass valve is received within the bypass passage. The bypass valve restricts the flow of water through the bypass passage based on a temperature of the water in the bypass passage. The bypass valve is variably positionable with respect to the valve seat to control a bypass shut-off temperature of the water.