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:
Jun. 04, 2002
Filed:
Apr. 05, 2000
Applicant:
Inventors:
Kazuhiko Watanabe, Tokyo, JP;
Masamichi Yano, Tokyo, JP;
Assignee:
Fujikoki Mfg. Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 2/700 ; F25B 4/106 ;
U.S. Cl.
CPC ...
G05D 2/700 ; F25B 4/106 ;
Abstract
An expansion valve comprises an orifice formed in a valve body and a valve member fixed to a movable member . Movement of a diaphragm is transmitted to an actuating rod via a member , and the actuating rod actuated the movable member to control the opening amount of the path between the valve member and the orifice . An orifice member affixed to the orifice is made of a material harder than the valve body , and free from erosion or other damage by a refrigerant, which will otherwise occur at the valve opening portion.