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:
Apr. 18, 1995
Filed:
Feb. 24, 1994
Aisan Kogyo Kabushiki Kaisha, Obbu, JP;
Abstract
A flow rate control valve reduced in size and improved in mountability has a structure comprising a communicating passage which has openings on opposite ends and includes valve seats which surround the respective openings, an outflow port which communicates with an intermediate portion of the communicating passage, a first valve disk disposed at a corresponding position to one of the valve seats, a diaphragm connected to the first valve disk, a diaphragm chamber formed on one side of the diaphragm, a spring which urges the first valve disk in the valve closing direction, a second valve disk disposed at a corresponding position to the other valve seat, an electromagnetic solenoid which opens/closes the second valve disk, a valve chamber formed around the second valve disk, and an inflow port which communicates with the diaphragm chamber and the valve chamber.