Hard coating on a stator for improving the durability of a solenoid actuator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6959732
APP PUB NO 20040163721A1
SERIAL NO

10372568

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
CATERPILLAR INC100 NE ADAMS STREET PEORIA IL 61629-9510
THOMAS MAGNETE GMBHGERMAN DORF HALE HERDORF RHINELAND-PALATINATE

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cotton, III Clifford E Pontiac, IL 15 70
Ohligschlager, Olaf Grunebach, DE 5 7
Shinogle, Ronald D Peoria, IL 65 1099
Stockner, Alan R Metamora, IL 92 949

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation