Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – With means to control the working fluid to one working...
Reexamination Certificate
2006-10-17
2006-10-17
Lazo, Thomas E. (Department: 3745)
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
With means to control the working fluid to one working...
C091S459000
Reexamination Certificate
active
07121189
ABSTRACT:
A valve for a fluid circuit is disclosed. The valve has a main valve element with a first end and a second end. The main valve element is movable between a flow-passing and a flow-blocking position in response to fluid pressure exerted on the first and second ends. The valve also has a solenoid mechanism operatively associated with the main valve element to move the main valve element toward one of the flow-passing and the flow-blocking positions. The valve further has a main valve spring configured to bias the main valve element in opposition to movement caused by the solenoid mechanism. The valve additionally has a relief valve element configured to communicate a fluid with the first end of the main valve element in response to a fluid pressure to initiate movement of the main valve element.
REFERENCES:
patent: 3366202 (1968-01-01), James
patent: 3613717 (1971-10-01), Smith
patent: 4046270 (1977-09-01), Baron et al.
patent: 4222409 (1980-09-01), Budzich
patent: 4250794 (1981-02-01), Haak et al.
patent: 4416187 (1983-11-01), Nystrom
patent: 4437385 (1984-03-01), Kramer et al.
patent: 4480527 (1984-11-01), Lonnemo
patent: 4581893 (1986-04-01), Lindbom
patent: 4586330 (1986-05-01), Watanabe et al.
patent: 4619186 (1986-10-01), Walters
patent: 4623118 (1986-11-01), Kumar
patent: 4662601 (1987-05-01), Andersson
patent: 4706932 (1987-11-01), Yoshida et al.
patent: 4747335 (1988-05-01), Budzich
patent: 4799420 (1989-01-01), Budzich
patent: 5067519 (1991-11-01), Russell et al.
patent: 5152142 (1992-10-01), Budzich
patent: 5211196 (1993-05-01), Schwelm
patent: 5287794 (1994-02-01), Andersson
patent: 5297381 (1994-03-01), Eich et al.
patent: 5313873 (1994-05-01), Gall et al.
patent: 5350152 (1994-09-01), Hutchison et al.
patent: 5366202 (1994-11-01), Lunzman
patent: 5477677 (1995-12-01), Krnavek
patent: 5490384 (1996-02-01), Lunzman
patent: 5537818 (1996-07-01), Hosseini et al.
patent: 5553452 (1996-09-01), Snow et al.
patent: 5560387 (1996-10-01), Devier et al.
patent: 5564673 (1996-10-01), Pieren
patent: 5568759 (1996-10-01), Aardema
patent: 5678470 (1997-10-01), Koehler et al.
patent: 5701933 (1997-12-01), Lunzman
patent: 5813226 (1998-09-01), Krone
patent: 5868059 (1999-02-01), Smith
patent: 5878647 (1999-03-01), Wilke et al.
patent: 5880957 (1999-03-01), Aardema et al.
patent: 5947140 (1999-09-01), Aardema et al.
patent: 5960695 (1999-10-01), Aardema et al.
patent: 6009708 (2000-01-01), Miki et al.
patent: 6216456 (2001-04-01), Mitchell
patent: 6282891 (2001-09-01), Rockwood
patent: 6398182 (2002-06-01), Stephenson
patent: 6467264 (2002-10-01), Stephenson et al.
patent: 6498973 (2002-12-01), Dix et al.
patent: 6502393 (2003-01-01), Stephenson et al.
patent: 6502500 (2003-01-01), Yoshino
patent: 6598391 (2003-07-01), Lunzman et al.
patent: 6619183 (2003-09-01), Yoshino
patent: 6655136 (2003-12-01), Holt et al.
patent: 6662705 (2003-12-01), Huang et al.
patent: 6691603 (2004-02-01), Linerode et al.
patent: 6694860 (2004-02-01), Yoshino
patent: 6715402 (2004-04-01), Pfaff et al.
patent: 6718759 (2004-04-01), Tabor
patent: 6725131 (2004-04-01), Lunzman
patent: 6732512 (2004-05-01), Pfaff et al.
patent: 6748738 (2004-06-01), Smith
patent: 6761029 (2004-07-01), Linerode
patent: 2003/0084946 (2003-05-01), Douglass et al.
patent: 2003/0121256 (2003-07-01), Mathur
patent: 2004/0055288 (2004-03-01), Pfaff et al.
patent: 2004/0055289 (2004-03-01), Pfaff et al.
patent: 2004/0055452 (2004-03-01), Tabor
patent: 2004/0055453 (2004-03-01), Tabor
patent: 2004/0055454 (2004-03-01), Pfaff et al.
patent: 2004/0055455 (2004-03-01), Tabor et al.
patent: 1 360 082 (1974-07-01), None
patent: 02613041 (1997-05-01), None
Egelja Aleksandar M
Guo Yun
Ma Pengfei
Sorokine Mikhall A.
Vonderwell Mark P.
Barnes D. James
Caterpillar Inc.
Finnegan, Henderson, Farabow, Garrett&Dunner
King Michael S.
Lazo Thomas E.
LandOfFree
Electronically and hydraulically-actuated drain value does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronically and hydraulically-actuated drain value, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronically and hydraulically-actuated drain value will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3621244