Seat height control system

Fluid handling – Systems – Multi-way valve unit

Reexamination Certificate

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Details

C251S058000

Reexamination Certificate

active

08074684

ABSTRACT:
The present invention relates to a leveling valve including a first port, a second port, a third port, a valve, and a clutch. The clutch is provided with an engaged position and a disengaged position. At least a portion of the clutch may move relative to the valve when the clutch is in the disengaged position. The clutch moves the valve when the clutch is in the engaged position. The valve is movable between a first position, a second position, and a third position. When the valve is in the first position, the valve blocks a first pathway, which extends from the first port, from connecting with a second pathway, which extends from the second port. When the valve is in the second position, the valve allows the first pathway to connect with the second pathway. When the valve is in the third position, the valve allows the second pathway to connect with a third pathway, which extends from the third port.

REFERENCES:
patent: 1177968 (1916-04-01), Smith
patent: 2354694 (1944-08-01), McGill
patent: 3216326 (1965-11-01), Pridham, Jr. et al.
patent: 3218020 (1965-11-01), Rhodes
patent: 3237529 (1966-03-01), Beck et al.
patent: 3315934 (1967-04-01), Taylor
patent: 4213594 (1980-07-01), Pietsch et al.
patent: 4382573 (1983-05-01), Aondetto
patent: 4461444 (1984-07-01), Grassl et al.
patent: 4470632 (1984-09-01), Babbs
patent: 4538854 (1985-09-01), Wilson
patent: 4573657 (1986-03-01), Sakamoto
patent: 4638982 (1987-01-01), Misher et al.
patent: 4645169 (1987-02-01), Mischer
patent: 4659052 (1987-04-01), Nagata
patent: 4684100 (1987-08-01), Grassl
patent: 4729539 (1988-03-01), Nagata
patent: 4733847 (1988-03-01), Grassl
patent: 4941641 (1990-07-01), Granzow et al.
patent: 4965899 (1990-10-01), Sekido et al.
patent: 5058852 (1991-10-01), Meier et al.
patent: 5082326 (1992-01-01), Sekido et al.
patent: 5092197 (1992-03-01), Hauger
patent: 5176355 (1993-01-01), Carter
patent: 5346170 (1994-09-01), Schmidt et al.
patent: 5528959 (1996-06-01), Yamakami
patent: 5882075 (1999-03-01), Partington et al.
patent: 6119727 (2000-09-01), Morris
patent: 6264163 (2001-07-01), Ivarsson
patent: 2006/1027880 (2006-12-01), Haller
patent: 232685 (1989-01-01), None
patent: 2168893 (1986-07-01), None

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