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:
Dec. 23, 1980
Filed:
May. 29, 1979
Rudy C Bussjager, Syracuse, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
A heat pump system includes a compressor, indoor and outdoor coils and a four-way valve for automatically reversing refrigerant to provide cooling or heating mode of operation. Each coil has a plurality of heat transfer circuits arranged in series when the coil operates as a condenser, and in a parallel when the coil operates as an evaporator. A second four-way reversing valve is provided in the refrigerant circuit between outlets of indoor and outdoor coils to direct refrigerant through liquid lines of the refrigerant circuit from the outlet of one coil used as a condenser to the expansion means of the other coil used as an evaporator. The second four-way reversing valve is arranged in the refrigerant circuit to connect some of heat transfer circuits connected in parallel in each coil when it is used as an evaporator, to the suction line of the compressor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile