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. 28, 1990
Filed:
Nov. 20, 1989
Yasumasa Kanameda, Saitama, JP;
Takeo Kushida, Saitama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
Herein disclosed a disc type electromagnetic valve which is disposed in the passage of a fluid represented by pressurized gases or air for controlling the flow of the fluid. In a casing at the back of a stator, there is formed a chamber in which a diaphragm is arranged. This diaphragm has its radially inner side connected to either a movable receiver of a spring for biasing an armature apart from the attracting surface of the stator or the armature. The chamber at the back of the diaphragm is caused to communicate with a communication passage of the pressurized fluid through a passage hole which extends through the armature and a valve member. When the pressure of the fluid exerted upon the valve member fluctuates, the diaphragm is moved to automatically adjust the seating force of the valve member against a valve seat.