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:
Mar. 07, 2006
Filed:
Aug. 05, 2004
Robert S. Nordstrom, Wauwatosa, WI (US);
Curtis L. Van Weelden, Sussex, WI (US);
Robert S. Nordstrom, Wauwatosa, WI (US);
Curtis L. Van Weelden, Sussex, WI (US);
HUSCO International, Inc., Waukesha, WI (US);
Abstract
A solenoid operated valve has a valve body with a plurality of ports and a spool slidable within the valve body to interconnect the ports in different combinations. An actuator drives the spool into several operating positions. The actuator has a solenoid assembly with an aperture within which first and second tubular pole pieces are received. An armature is able to slide within the two pole pieces and a push member projects from the armature abutting the spool. The push member is secured to a rolling bearing which has a plurality of rolling elements that roll against the pole pieces to reduce resistance to movement of the armature.