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:
Mar. 12, 2002
Filed:
Nov. 07, 2000
Eiji Fukuda, Toyko, JP;
Kazuhiko Watanabe, Toyko, JP;
Fujikoki Mfg. Co., Ltd., Tokyo, JP;
Abstract
A thermal expansion valve has a valve chamber in a valve body , and controls the flow rate of refrigerant from a condenser and a receiver, and the refrigerant travels to an evaporator through a passage . Refrigerant returning from the evaporator transmits the temperature of refrigerant to a heat sensing shaft connecting to a power element portion while traveling through a passage . A cover has a head portion and a tapered portion , and is mounted to the top portion of the valve body . Tapered outer surfaces of the tapered portion of the cover and tapered surfaces of the valve body form approximately identical surfaces. A concave portion of the head portion covers the power element portion , and its peak portion forms a curved surface