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:
Jun. 04, 2002
Filed:
Feb. 22, 2001
Greg Hahn, Arkadelphia, AR (US);
Zili Sun, Arkadelphia, AR (US);
Carlos Zamudio, Arkadelphia, AR (US);
Jason Hugenroth, Hope, AR (US);
Thomas Barito, Arkadelphia, AR (US);
James W. Bush, Skaneateles, NY (US);
Joe T. Hill, Bristol, VA (US);
John R. Williams, Bristol, VA (US);
Scroll Technologies, Arkadelphia, AR (US);
Abstract
A refrigerant cycle is provided with an expansion device that is movable between a normal mode of operation and a low charge mode of operation. In the low charge mode of operation, the expansion device does not lower the pressure of the refrigerant as much as it does in its normal mode of operation. In this way, the relatively high pressure ratios that are experienced by a compressor during a low charge operation will not be experienced. Instead, the pressure ratio across the compressor is reduced during low charge operation, and the compressor will be better protected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile