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:
Apr. 14, 2026
Filed:
Jun. 30, 2023
Applicant:
Zurn Water, Llc, Milwaukee, WI (US);
Inventor:
William M. Orr, Paso Robles, CA (US);
Assignee:
ZURN WATER, LLC, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 27/12 (2006.01); E03B 7/07 (2006.01); F16K 15/06 (2006.01); F16K 17/04 (2006.01); F16K 27/02 (2006.01);
U.S. Cl.
CPC ...
F16K 27/12 (2013.01); E03B 7/077 (2013.01); F16K 15/067 (2021.08); F16K 17/04 (2013.01); F16K 27/0209 (2013.01); Y10T 137/7869 (2015.04); Y10T 137/7876 (2015.04);
Abstract
A relief valve for a backflow preventer includes a plunger, a lock nut, and a seal. The plunger has a female fastening section and a first seal engagement surface. The lock nut has a male fastening section and a second seal engagement surface. The male fastening section is received by the female fastening section to bring the first seal engagement surface toward the second seal engagement surface. The seal is positioned between the first seal engagement surface and the second seal engagement surface.