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:
Aug. 15, 1989
Filed:
Dec. 21, 1987
Katsunori Kawai, Kariya, JP;
Shinichi Suzuki, Kariya, JP;
Mitsuhiro Hattori, Kariya, JP;
Hiroyuki Deguchi, Kariya, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Abstract
In the pressure control valve assembly according to the present invention, a plurality of communication passages or slits is formed in either the movable throttling plunger or its associated stationary seat portion, and such passages are so arranged that their effective communication area is variable with the plunger movement relative to the seat portion in the region where the plunger is positioned close to its full-throttling position, whereby throttling of the refrigerant gas in such a region is achieved through the effective communication area of these passages.