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:
Jun. 07, 1994
Filed:
Dec. 02, 1991
Mario Gaiardo, Ivrea, IT;
Matrix S.r.l., Ivrea, IT;
Abstract
A solenoid valve comprising an inlet conduit coaxial with an exhaust conduit; and an on-off element supported on the anchor of an electromagnet and moving substantially along the common axis of the two conduits for alternately connecting the inlet conduit and the exhaust conduit to an outlet conduit via a connecting compartment. The anchor normally closes the inlet conduit via flexible means, such as a permanent magnet in the magnetic circuit of the electromagnet, magnetized the opposite way to when the electromagnet is energized. The action of the electromagnet is such as to substantially eliminate that of the magnet on the anchor, which is thus set rapidly to the closed position over the exhaust conduit.