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:
Jul. 02, 2002
Filed:
Nov. 21, 2000
John R. Williams, Bristol, VA (US);
James W. Bush, Skaneateles, NY (US);
Zili Sun, Arkadelphia, AR (US);
Carlos Zamudio, Arkadelphia, AR (US);
Jason Hugenroth, Hope, AR (US);
Greg Hahn, Arkadelphia, AR (US);
Thomas Barito, Arkadelphia, AR (US);
Joe T. Hill, Bristol, VA (US);
Scroll Technologies, Arkadelphia, AR (US);
Abstract
A scroll compressor is provided that has greater control over the compressed volume by having a plurality of sequentially spaced unloader valves and associated holes. By providing the plurality of valves, a control achieves greater variation over the final compressed volume. The present invention is most preferably utilized in the type of scroll compressor having a hybrid wrap geometry to provide an increased volume of refrigerant adjacent the suction area of the compressor.