Valves and valve actuation – Valve actuator surrounding pipe – inlet or outlet
Patent
1988-06-20
1990-04-10
Chambers, A. Michael
Valves and valve actuation
Valve actuator surrounding pipe, inlet or outlet
251346, 73 231, F16K 3100, G01N 3002
Patent
active
049153560
ABSTRACT:
A fluid valve permits small quantities of fluid from a container to be withdrawn with a syringe. The valve has a sleeve mounted on a hollow stem in fluid flow communication with the container. A septum is movably mounted between the bore of the sleeve and the bore of the stem. The septum has a first surface facing into the hollow stem and a second aligned surface facing the atmosphere around the valve. A needle is inserted through the aligned surfaces of the septum to withdraw fluid in the stem bore or in the container and is then withdrawn.
REFERENCES:
patent: 1595186 (1926-08-01), Gray
patent: 3374660 (1968-03-01), McKinney et al.
patent: 3581573 (1971-06-01), Purcell
Guild Daniel L.
Guild Lloyd V.
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