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.

Date of Patent:
Jun. 16, 2026

Filed:

May. 21, 2024
Applicant:

Bradford White Corporation, Ambler, PA (US);

Inventors:

Stephen Kimball Joy, Union, NH (US);

Richard O. Oliveira, New Durham, NH (US);

Joseph Albert Stocker, Dover, NH (US);

Assignee:

Bradford White Corporation, Ambler, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 47/02 (2006.01); F24H 4/02 (2022.01);
U.S. Cl.
CPC ...
F25B 47/022 (2013.01); F24H 4/02 (2013.01); F25B 2700/11 (2013.01); F25B 2700/19 (2013.01); F25B 2700/2103 (2013.01);
Abstract

A heat pump water heater system includes a compressor configured to compress a coolant and an evaporator including an evaporator fan that is configured to cause air to flow through the evaporator when the evaporator fan is actuated. A first heat exchanger fluidly interposes the compressor and the evaporator and is configured to transfer heat between the coolant and water flowing through the first heat exchanger. A temperature sensor is configured to detect a temperature of ambient air. A pressure sensor is configured to detect an air pressure at the evaporator. Control circuitry is in communication with the temperature sensor and the pressure sensor. The control circuitry is configured to determine presence of an obstruction on the evaporator and classify the obstruction based on the temperature of the ambient air.


Find Patent Forward Citations

Joy, Stephen. (2026). Obstruction detection for a heat pump water heater system (U.S. Patent No. 12656035). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12656035

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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