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US 4,096,879 AGranted
Adjustable fluid flow regulator
AssigneeInternational Biomedical Laboratories, Inc.
InventorsJuan Ricardo Serur, Herbert Heinz Loeffler
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Abstract
A rate of flow regulator comprising upper and lower fluid chambers, the upper chamber having a double acting float valve to maintain a predetermined level of fluid therein, vent means venting each chamber to atmosphere, and metering means for regulating fluid flow to the lower chamber, the height of said upper chamber being adjustable relative to said metering means to change the fluid flow rate.
Claims21
In a rate of flow regulator for use in a gravity assisted fluid delivery system, the regulator comprising:
- an upper fluid chamber having a fluid inlet and a fluid outlet and further having means for maintaining a predetermined level of fluid in said upper chamber;
- a separate lower fluid chamber having a fluid inlet and a fluid outlet;
- a flexible tube connecting said fluid inlet in fluid flow communication with said upper chamber fluid outlet;
- and vent means for communicating atmospheric pressure to each said chamber;
- the improvement in which structure defining a restricted metering orifice of predetermined cross-sectional area at said lower chamber fluid inlet in the fluid flow path from said upper chamber to said lower chamber for metering fluid flow to said lower chamber, said tube connected to said metering orifice structure;
- the vertical distance between said lower chamber and said upper chamber is adjustable to vary the distance between said metering orifice and said predetermined level in said upper chamber whereby fluid flow rate between said chambers may be adjusted by adjusting said vertical distance.
3 more elements
Dependencies are inferred from the claim text.