Device for selectively regulating the flow rate of a fluid

Details Device for selectively regulating the flow rate of a fluid Device for selectively regulating the flow rate of a fluid

2003-09-18

2008-11-25

Rivell, John (Department: 3753)

Fluid handling

Systems

Dividing into parallel flow paths with recombining

C137S595000, C251S297000, C604S034000, C604S250000

Reexamination Certificate

active

07455072

ABSTRACT:
A device for regulating the flow rate of a fluid includes a housing containing a plurality of flow conduits fluidly connecting an inlet and an outlet, each of the flow conduits comprising a flow control tube (310, 312, 314) and a resiliently compressive occlusion tube (316, 318, 320), wherein the flow control tubes are of substantially equal internal diameter. Each of the flow control tubes has a length associated with a different flow rate. A resilient flow-blocking element (212a,212b,212c) is operatively associated with each of the occlusion tubes and is movable into a flow-blocking compression against its associated occlusion tube. An actuation mechanism (206) in the housing is operable: (a) to selectively engage and move one or more of the flow-blocking elements into the flow-blocking compression against its associated occlusion tube, and (b) to selectively be disengaged from any of the flow-blocking elements.

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