Fluid flow restrictor device

Details Fluid flow restrictor device Fluid flow restrictor device

1981-11-30

1983-10-25

Marcus, Stephen

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

62511, 604251, F15D 102

Patent

active

044112920

ABSTRACT:
A fluid flow restrictor device, capable of producing a precise rate of fluid flow, comprises a closed spiral coil of wire contacted on at least one face by a member so as to define therewith a spiral passageway of precise cross-section, there being a fluid inlet at one end of the spiral passageway and a fluid outlet at the other end. In several preferred embodiments of the invention described, the closed spiral coil of wire is disposed between an inner member in contact with the inner face of the coil, and an outer member in contact with the outer face of the coil, one of the members closing the spiral passageway between it and the respective face of the coil, thereby leaving the other spiral passageway for conducting the fluid. At least one of the members is resiliently deformable to increase the cross-sectional area of the passageway to permit flushing the device.

REFERENCES:
patent: 2025396 (1935-12-01), MacIndoe
patent: 2146823 (1939-02-01), Karmazin
patent: 2623577 (1952-12-01), Cowles
patent: 2683973 (1954-07-01), Mettler

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