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:
Oct. 03, 2006
Filed:
Oct. 18, 2005
Applicants:
Alexander Lifson, Manlius, NY (US);
Thomas J. Dobmeier, Phoenix, NY (US);
Michael F. Taras, Fayetteville, NY (US);
Inventors:
Alexander Lifson, Manlius, NY (US);
Thomas J. Dobmeier, Phoenix, NY (US);
Michael F. Taras, Fayetteville, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An expansion device for the heat pump applications consists of a flow resistance device that has a different resistance to refrigerant flow depending on the flow direction through this device. The flow resistance device has no moving parts so that it avoids the damage, wear and contamination problems of the moveable piston in the prior art. The flow resistance device is a fixed obstruction about which the fluid must flow when traveling through the expansion device.