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. 22, 2003
Filed:
Dec. 18, 2001
Applicant:
Inventors:
Timothy C. Wagner, East Hartford, CT (US);
Alexander Lifson, Manlius, NY (US);
James W. Bush, Skaneateles, NY (US);
Donald Yannascoli, Manlius, NY (US);
Mark Daniels, Manlius, NY (US);
Rene Lin, Manlius, NY (US);
William Rousseau, Manlius, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C 2/100 ;
U.S. Cl.
CPC ...
F01C 2/100 ;
Abstract
A screw compressor includes at least two components defining at least two operating zones of different pressure and having surfaces defining a flow point between the at least two zones, and a surface treatment positioned on the surfaces so as to reduce clearance between the surfaces, and thereby reduce leakage through the flow point.