Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1992-11-19
1993-09-07
Rivell, John
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137495, 13761414, F16K 31365
Patent
active
052419851
ABSTRACT:
A valve for controlling intravenous fluid includes a flexible membrane (11), which together with a rigid body (21) forms a valving chamber (29). Two mouths (27, 32) lead into and out of the valving chamber. In one embodiment, a stem (23) having an enlarged portion (15) is attached to the membrane's inner face and extends into the outlet mouth. Fluid pressure on the inner face causes the enlarged portion of the stem to press against a narrower portion (38) of the outlet conduit, thereby preventing flow through the outlet conduit. External pressure on the membrane's outer face causes the enlarged portion of the stem to separate from the outlet conduit's walls, thereby permitting flow through the outlet conduit. In another embodiment, a groove (43) is placed near one of the mouths. The membrane may be pressed against the rigid body and the groove, so as to prevent flow except through the groove and to variably restrict flow through the groove.
REFERENCES:
patent: 121487 (1871-12-01), Burnett
patent: 1800995 (1931-04-01), Gaunt et al.
patent: 2141070 (1938-12-01), Newell
patent: 2189750 (1940-02-01), Barge
patent: 2301031 (1942-11-01), Ferguson
patent: 2715009 (1955-08-01), Beekley
patent: 2943643 (1960-07-01), Pinter et al.
patent: 3547427 (1970-12-01), Kelly et al.
patent: 3648726 (1972-03-01), Caparone et al.
patent: 3730215 (1973-05-01), Conery et al.
patent: 3948285 (1976-04-01), Flynn
patent: 4157808 (1979-06-01), Eidsmore
patent: 4300552 (1981-11-01), Cannon
patent: 4431019 (1984-02-01), Kopp et al.
patent: 4515588 (1985-05-01), Amendolia
patent: 4537387 (1985-08-01), Danby et al.
patent: 4796660 (1989-01-01), Bron
patent: 4860793 (1989-08-01), Hartl
Faust Valentine T.
Kamen Dean L.
DEKA Products Limited Partnership
Rivell John
LandOfFree
Flow control valve system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flow control valve system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow control valve system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-481240