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:
Nov. 01, 2005
Filed:
Feb. 21, 2003
Clifford E. Cotton Iii, Pontiac, IL (US);
Alan R. Stockner, Metamora, IL (US);
Ronald D. Shinogle, Peoria, IL (US);
Olaf Ohligschläger, Grünebach, DE;
Clifford E. Cotton III, Pontiac, IL (US);
Alan R. Stockner, Metamora, IL (US);
Ronald D. Shinogle, Peoria, IL (US);
Olaf Ohligschläger, Grünebach, DE;
Caterpillar Inc., Peoria, IL (US);
Abstract
At least one solenoid actuator and a valve are at least partially positioned within a body of an hydraulic device. The solenoid actuator includes at least one solenoid coil mounted to a stator that defines a guide bore in which a push pin moves between a first position and a second position. The valve includes a valve member that is operably coupled to move with the push pin. The push pin is attached to an armature that is positioned adjacent the solenoid coil. In order to increase the durability of the solenoid actuator, a relatively hard, nonmagnetic material is positioned between an inner surface of the stator that is made from a relatively soft, magnetic material and an outer surface of the push pin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile