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:
Jul. 06, 1999
Filed:
Oct. 08, 1997
Jia Wang, N. Aurora, IL (US);
John N Tackes, Lake Zurich, IL (US);
Dan Alexander, Schaumburg, IL (US);
Vickers, Incorporated, Maumee, OH (US);
Abstract
A solenoid valve utilizes a single unitary member as a combined core/spool which is axially moveable between an extended deactivated position to a retracted activated position upon actuation of its coil. The valve includes a coil in which the windings on a bobbin are encapsulated by injection molding an outer member therearound. The valve also includes a washer which becomes adhered to the outer member during injection molding, a plug member supported on the washer and a sleeve encircling the coil. The plug member has an end positioned to be contacted by the core/spool upon actuation which is contoured to provide minimal contact surface between it and the core/spool.