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:
Feb. 15, 2011
Filed:
Feb. 07, 2005
Paul J. Flanigan, Cicero, NY (US);
Kyle D. Wessells, Huntersville, NC (US);
Francis P. Wilson, Jamesville, NY (US);
Stephen L. Shoulders, Baldwinsville, NY (US);
Paul J. Flanigan, Cicero, NY (US);
Kyle D. Wessells, Huntersville, NC (US);
Francis P. Wilson, Jamesville, NY (US);
Stephen L. Shoulders, Baldwinsville, NY (US);
Carrier Corporation, Farmington, CT (US);
Abstract
A compressor () has an unloading slide valve (). The valve has a valve element () having a range between a first condition and a second condition, the second condition being unloaded relative to the first condition. A piston () is in a cylinder () and mechanically coupled to the valve element. A control valve () is coupled to a headspace () of the cylinder to selectively expose the headspace to a fluid source (), pressure of fluid in the headspace producing a force on the piston and valve element in a direction from the second condition toward the first condition. The compressor includes means () for relieving excess pressure in the headspace.