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:
Sep. 17, 1991
Filed:
May. 30, 1990
Mario Gaiardo, Ivrea, IT;
Matrix S.r.L., Ivrea, IT;
Abstract
A solenoid valve having an electromagnet arranged in a chamber into which an inlet duct and an outlet duct of the solenoid valve open, whereby the coil is constantly ventilated by the compressed air itself. The armature of the electromagnetic has a disc for shutting off the outlet duct and is formed by a plate which is urged into the closed position of the solenoid valve by the compressed air. The plate rotates about a beading of elastomeric material and exhibits extremely low inertia, whereby the solenoid valve can be operated at high frequency. The chamber can house a plurality of electromagnets, each of which controls a shut-off member for a corresponding outlet duct. The body also comprises an interchangeable shell which has funnel-shaped chambers for directing the air of at least one set of ducts to a common outlet aperture.