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:
Sep. 17, 2013
Filed:
Apr. 18, 2012
Applicant:
Curtis L. Van Weelden, Waukesha, WI (US);
Inventor:
Curtis L. Van Weelden, Waukesha, WI (US);
Assignee:
HUSCO Automotive Holdings, Inc., Waukesha, WI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrohydraulic control valve includes a solenoid actuator that slides a valve element within a valve body to control fluid flow between a workport and each of a supply port and an exhaust port. The solenoid actuator has an armature that incorporates an element which digressively damps bidirectional motion of the armature. The element preferably damps the motion of the valve element according digressive damping velocity-force relationship.