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. 02, 2014
Filed:
Jun. 29, 2012
Applicants:
Dale Kempf, Manton, CA (US);
Ken Lum, Fresno, CA (US);
Inventors:
Dale Kempf, Manton, CA (US);
Ken Lum, Fresno, CA (US);
Assignee:
Grundfos Pumps Corporation, Olathe, KS (US);
Primary Examiner:
Int. Cl.
CPC ...
G05D 23/13 (2006.01); F16K 31/00 (2006.01); G05D 23/12 (2006.01); G05D 23/02 (2006.01); E03B 7/09 (2006.01);
U.S. Cl.
CPC ...
G05D 23/12 (2013.01); F16K 31/002 (2013.01); G05D 23/022 (2013.01); E03B 7/09 (2013.01); E02B 7/045 (2013.01);
Abstract
A bypass valve includes a housing having a hot water port configured to communicate with a hot water supply line and a return port configured to discharge water from the housing for recirculation to a hot water source. The housing has a passage permitting recirculating flow between the hot water port and the return port. A valve member is operable to allow and restrict recirculating flow through the passage. The valve member restricts water flow through the passage in a failed state.