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:
Apr. 01, 2003
Filed:
Dec. 03, 2001
Applicant:
Inventor:
Douglas A. Schmidt, Marietta, OH (US);
Assignee:
Thermo Forma Inc., Marietta, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 4/100 ; F25B 4/500 ;
U.S. Cl.
CPC ...
F25B 4/100 ; F25B 4/500 ;
Abstract
A refrigeration system generally including a compressor, a condenser, an expansion device, and an evaporator. A refrigerant expansion tank is connected to the suction side of the compressor to vary the charge of refrigerant in the refrigeration system. Preferably, the expansion tank adds additional refrigerant to the system only after it has reached, is near, or at least is approaching, its operating point. The additional refrigerant is removed from the refrigerant fluid path and contained within the expansion tank when the refrigeration system is turned off.