Fluid handling – Systems – Multi-way valve unit
Patent
1998-06-16
2000-09-19
Rivell, John
Fluid handling
Systems
Multi-way valve unit
13759612, 251297, 29745241, 297DIG3, F16K 11065, F16K 3504
Patent
active
061197270
ABSTRACT:
A pneumatic valve (10) for use in a pneumatic seat (12) of a vehicle is disclosed. The pneumatic valve includes an upper housing (32) and a lower housing (38). The lower housing is slidably received within the upper housing. The lower housing has an upper surface (78) and a lower surface (79). The lower surface has an inlet stem (88), a seat air inlet/outlet stem (90), and at least a first exhaust port (94). The pneumatic valve also includes an elongate poppet (108) slidably mounted within the seat air inlet/outlet port on a first spring (106) to control air flow through the seat air inlet/outlet port. The poppet has an enlarged head portion (110) located at one end and a cam projection (113) located at the other end. A slide member (34) is supported on the upper surface of the lower housing for reciprocating movement relative to the housing to selectively control air flow therethrough. The slide member has an upper surface and a lower surface. The lower surface of the slide member has a cammed portion (68) to selectively and automatically permit rapid exhaustion of air from the seat air inlet/outlet port. The cam portion includes a detent notch (70) to selectively lock the slide member into continuous fluid communication with the seat air inlet/outlet port and the exhaust port to permit air to escape therethrough.
REFERENCES:
patent: 1215071 (1917-02-01), Steedman
patent: 2792019 (1957-05-01), Lieser
patent: 2981550 (1961-04-01), Machnich
patent: 3215386 (1965-11-01), Swenson
patent: 3218020 (1965-11-01), Rhodes
patent: 4264050 (1981-04-01), Wahls
patent: 4291725 (1981-09-01), Raab et al.
patent: 4524951 (1985-06-01), Green et al.
patent: 4597414 (1986-07-01), Johnson
patent: 4733847 (1988-03-01), Grassl
patent: 4809944 (1989-03-01), Smith et al.
patent: 4954051 (1990-09-01), Smith et al.
patent: 5058852 (1991-10-01), Meier et al.
patent: 5277099 (1994-01-01), Powers
patent: 5427331 (1995-06-01), Stroud
patent: 5447178 (1995-09-01), Gabrlik et al.
patent: 5564520 (1996-10-01), Forsythe
patent: 5573034 (1996-11-01), Gabrlik et al.
patent: 5590736 (1997-01-01), Morris et al.
GT Development Corporation
Rivell John
LandOfFree
Pneumatic seat valve having a rapid exhaust mode does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic seat valve having a rapid exhaust mode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic seat valve having a rapid exhaust mode will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1062421