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. 11, 2000
Filed:
Feb. 14, 1998
Gary L Casey, Thousand Oaks, CA (US);
Other;
Abstract
A solenoid-operated fluid switching valve is described with a movable valve member and a stationary member; the movable member containing at least 2 valve elements that seat in the closed position against valve seating elements, the valve and valve seating elements being made from components that can be precisely matched in thickness and interleaved so that all pairs of elements open and close essentially simultaneously. The solenoid portion can consist of at least 2 armature elements connected by a spacer and at least 2 stator elements connected by a spacer, all of which made from magnetically permeable material, and one or more electrical coils located within the envelope; the armature and stator elements interleaved in a way to create at least 2 substantially equal gaps so the armature is urged in one direction when electrical current is applied to the coils.