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:
Nov. 03, 2026
Filed:
Jan. 17, 2025
Heatcraft Refrigeration Products Llc, Stone Mountain, GA (US);
Shitong Zha, Snellville, GA (US);
Ajay Iyengar, Frisco, TX (US);
Heatcraft Refrigeration Products LLC, Stone Mountain, GA (US);
Abstract
A refrigeration system includes a controller, a first evaporator, a second evaporator, one or more compressors, a flash tank, a heat exchanger, and four valves. When the controller determines that the first evaporator should be operated in a defrost mode, it operates the four valves to allow defrost refrigerant to pass from the heat exchanger to the first evaporator. The defrost refrigerant includes heat extracted from compressed refrigerant from the compressors, which is added to the heat in warm liquid received from the flash tank in order to defrost the first evaporator. Defrost refrigerant is caused to flow to the first exchanger, causing it to defrost, and the refrigerant is then passed to the second exchanger and to the compressors. When the second exchanger needs defrost, the valves are reversed, causing the defrost refrigerant to flow to the second exchanger and then to the first exchanger and the compressors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile