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. 16, 2025
Filed:
May. 30, 2023
Applicant:
Carrier Corporation, Palm Beach Gardens, FL (US);
Inventors:
Maxime Lejeune, Rouen, FR;
Marinne Saint-Denis, Ailly, FR;
Assignee:
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 45/00 (2006.01); F25B 41/20 (2021.01);
U.S. Cl.
CPC ...
F25B 45/00 (2013.01); F25B 41/20 (2021.01); F25B 2345/00 (2013.01); F25B 2700/04 (2013.01);
Abstract
A method of measuring the quantity of refrigerant in a refrigeration circuit of a transportation refrigeration unit (TRU). The refrigeration circuit comprises a compressor, a condenser, a receiver, an expansion valve and an evaporator sequentially fluidly connected in a circuit. The method comprises: running the refrigeration circuit in a recovery mode to accumulate the refrigerant in the refrigeration circuit within the receiver; and measuring the quantity of the refrigerant in the refrigeration circuit once it has accumulated within the receiver.