MARK DWAYNE MILLER
Pilots at Saugatuck Rd, Boulder Hill, IL

License number

Illinois A2665208

Issued Date

Mar 2017

Expiration Date

Mar 2018

Professional information

Pressure Regulating Valve

US Patent:

5868166, Feb 9, 1999

Filed:

Jun 27, 1996

Appl. No.:

8/672124

Inventors:

Mark D. Miller - Montgomery IL

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F16K 1116

US Classification:

13762527

Abstract:

A pressure regulating valve usable in combination with a hydraulic steering system has a spring mechanism axially disposed between a pair of axially aligned valve spools. Movement of the spring mechanism in a first direction resiliently moves one of the valve spools to a position for communicating an inlet port with a control port and regulating the pressure in the the control port so that the pressure is proportional to the degree of movement of the spring mechanism. Conversely, movement of the spring mechanism in a second direction resiliently moves the other valve spool to a position for communicating the inlet port with another control port and regulating the pressure in the other control port so that the pressure is proportional to the degree of movement of the spring mechanism.

Work Machine Having Endless Ground Engaging Drive Belts

US Patent:

D364879, Dec 5, 1995

Filed:

Aug 24, 1993

Appl. No.:

D/012145

Inventors:

Robert C. Bastian - Hinckley IL
William C. Boroski - Aurora IL
Melvin P. Busch - Peoria IL
Elmer R. Crabb - Aurora IL
Patrick W. Friede - Brimfield IL
Alan D. Gustafson - Leland IL
David C. Koch - Lisle IL
Mark D. Miller - Montgomery IL
Jeffrey A. Moore - Waterman IL
James R. Oldham - St. Charles IL
Robert L. Stamate - Chillicothe IL
Samuel B. Stevens - Pekin IL
Russell W. Strong - Craftsbury Common VT
Lynn A. Sutton - Kewanee IL
Joseph M. Tucker - Oswego IL

Assignee:

Caterpillar Inc. - Peoria IL

US Classification:

D15 24