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. 07, 1984
Filed:
Aug. 09, 1982
Applicant:
Inventor:
Wayne R Reedy, Cazenovia, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62528 ; 137468 ; 138 45 ; 236 / ; 2361 / ; 236103 ; 251118 ;
Abstract
A refrigerant expansion device for use in a vapor compression refrigeration system is disclosed. The device has a body portion with a bore extending therethrough. At least that portion of the body portion which forms the bore walls is made of a shape memory alloy which undergoes a metallurgical transformation at a predetermined transformation temperature to change the bore size of the device in response to the temperature of refrigerant flowing through the device. In this manner, the bore size of the device is adjusted in response to different operating conditions of the refrigeration system.