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:
Mar. 23, 1982
Filed:
Nov. 06, 1980
Robert B Uselton, Dallas, TX (US);
Joseph A Pietsch, Dallas, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
What is disclosed is an improvement in a heat pump water heater wherein the elements are disposed in a thermoplastic, molded base atop the hot water storage tank. The molded base has a drain for draining off liquid condensate. The condenser is in the form of a coil having the respective refrigerant and water paths for flowing in heat exchange relationship and disposed atop the hot water storage tank. The water has its own respective pump for being circulated through the condenser for heating the water while condensing the refrigerant. The evaporator is disposed peripherally around the top of the hot water storage tank so that the air that vaporizes the refrigerant is cooled and can be vented back to the air conditioned space. A self-supporting air filter is provided.