Valve arrangement

Details Valve arrangement Valve arrangement

1986-09-16

1987-11-17

Chambers, A. Michael

Fluid handling

With liquid valves or liquid trap seals

Liquid seal in liquid flow line; flow liquid forms seal

137602, 73 231, F16K 1310

Patent

active

047067004

ABSTRACT:
A valve arrangement for controlling the flow of a sample of blood gases along a capillaric streamway from a probe towards an analyzing apparatus includes a body 12 having an inlet 36 for control fluid and a reciprocable valve head 20 movable from a first position in which inlet 36 is isolated from a second inlet 30 for carrier gas and blood gases towards a second position in which inlets 36, 30 are in communication. The arrangement is such, that in the first position of the valve head 20 the carrier gas and blood gases can flow from inlet 30 towards an outlet 32. However, in the second position the pressure of the control fluid prevents the flow of the carrier gas and blood gases through the inlet 30.

REFERENCES:
patent: 3186808 (1965-06-01), Anscherlik
patent: 3738107 (1973-06-01), Miller
patent: 4168724 (1979-09-01), Graffunder et al.
patent: 4281935 (1981-08-01), Cramer et al.

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