Valves and valve actuation – With restrictor in parallel to main valve
Patent
1981-10-16
1984-04-03
Rosenthal, Arnold
Valves and valve actuation
With restrictor in parallel to main valve
251 4, 604249, 604250, F16K 702, F16K 5100, A61M 500
Patent
active
044403780
ABSTRACT:
A device including a valving mechanism which can be operated by one hand. The device includes a housing which surrounds a resilient block of material. The housing may be squeezed to depress and deform the resilient block. Passageways extend through the resilient block to conduct liquid therethrough. A first passage includes a solid valve positioned therein. Compression of the resilient block breaks the seal around the valve by distorting the passageway to allow flow therethrough. A second passage includes a capillary to allow continuous low volume flow not controlled by an operator.
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patent: 4182357 (1980-01-01), Ornstein
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