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:
May. 02, 2006
Filed:
Apr. 07, 2004
Hiroyuki Ezaki, Tokyo, JP;
Kazuhiko Watabe, Tokyo, JP;
Hiroyuki Ezaki, Tokyo, JP;
Kazuhiko Watabe, Tokyo, JP;
Fujikoki Corporation, Tokyo, JP;
Abstract
Disclosed is a composite valve comprising a valve body that is provided integrally with a solenoid valve portion and a differential pressure valve portion. The valve body is formed with an upper valve chest, a lower valve chest, a refrigerant introduction chamber that communicates with the upper valve chest and has a differential pressure valve seat, and a back pressure introduction chamber that communicates with the lower valve chest. A main valve element that is opened and closed by means of the solenoid valve portion is located between the upper valve chest and the lower valve chest. A differential pressure valve element that is opened and closed by means of a differential pressure between the refrigerant introduction chamber and the back pressure introduction chamber is located between these two chambers. The refrigerant introduction chamber, back pressure introduction chamber, and differential pressure valve element are arranged so as not be situated on the outer surface of the valve body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile