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:
Dec. 25, 1979
Filed:
May. 24, 1976
Myrl J Saarem, Carson City, NV (US);
Dale F Soukup, Meadow Vista, CA (US);
Richdel, Inc., Carson City, NV (US);
Abstract
A normally-open pilot-operated valve assembly is provided which closes when a solenoid-operated pilot valve is energized. The pilot valve is open when the solenoid is de-energized to remove fluid pressure from a chamber in the valve housing causing the main valve to open. When the solenoid is energized, the pilot valve closes causing hydraulic pressure to build up in the valve chamber so that the main valve is closed. The solenoid-operated valve includes a plunger which extends into a discharge port, the plunger having a spherical member attached to its distal end which is drawn inwardly against a seat in the pilot discharge port to close the port when the pilot solenoid is energized.