Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1987-04-20
1989-02-07
Rivell, John
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
251209, 251312, 604 32, 604246, 604248, F16K 516, F16K 510
Patent
active
048025062
ABSTRACT:
A metering apparatus and system for controlling the administraton IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned wihtin the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the vlave member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.
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Nelson Gregory J.
Rivell John
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