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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.:

US 12379236 B1

PDFFull Text
Date of Patent:
Aug. 05, 2025

Filed:

May. 22, 2023

Temperature and pressure relief valve

Applicant:

Watts Regulator Co., North Andover, MA (US);

Inventors:

Joseph Michael Burke, Deerfield, NH (US);

Yousef S. Almesad, Boston, MA (US);

Assignee:

Watts Regulator Co., North Andover, MA (US);

Attorneys:

Day Pitney LLP

George Chaclas

Anthony A. Kassas

Primary Examiner:

Brian A Zimmerman

Assistant Examiner:

Anthony D Afrifa-Kyei

Int. Cl.
CPC ...
G01F 1/56 (2006.01); F16K 17/00 (2006.01); F24D 19/10 (2006.01); F24H 9/20 (2022.01); F24H 15/12 (2022.01); F24H 15/20 (2022.01); F24H 15/212 (2022.01); F24H 15/238 (2022.01); F24H 15/242 (2022.01); F24H 15/31 (2022.01); F24H 15/395 (2022.01); G01F 15/00 (2006.01); G01M 3/26 (2006.01); F24H 15/45 (2022.01);
U.S. Cl.
CPC ...
G01F 1/56 (2013.01); F16K 17/003 (2013.01); F24D 19/1006 (2013.01); F24H 9/2007 (2013.01); F24H 15/12 (2022.01); F24H 15/20 (2022.01); F24H 15/212 (2022.01); F24H 15/238 (2022.01); F24H 15/242 (2022.01); F24H 15/31 (2022.01); F24H 15/395 (2022.01); G01F 15/005 (2013.01); G01M 3/26 (2013.01); F24H 15/45 (2022.01);
Abstract

A temperature and pressure relief valve apparatus including a body having a first conduit connected to a water heater and a second conduit connected to a discharge pipe. A valve member, positioned between the first and second conduits, is normally biased closed to prevent flow between the conduits. The valve member is configured such that when a temperature or pressure within the water heater exceeds a predetermined level, the valve member opens to relieve pressure and, in turn, water is released through the second conduit. A sensor is disposed about the second conduit and coupled to a controller. The controller measures a capacitance value of the second conduit, detects a change in the capacitance value indicating a presence of water in the second conduit, and asserts an alarm condition upon detection of the change in the second conduit capacitance value.

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