Pipes and tubular conduits – With flow regulators and/or baffles – Restrictors
Patent
1997-02-21
1998-07-28
Weldon, Kevin
Pipes and tubular conduits
With flow regulators and/or baffles
Restrictors
F21P 700
Patent
active
057850895
ABSTRACT:
In accordance with one embodiment of the present invention, liquid material enters circumferencially into a generally cylindrical outer walled cylinder. A baffle may be provided to facilitate circumferencial flow. The tangential, circumferencial flow tends to reduce turbulence. In the outer chamber a top wall is provided and a cushion of air is located between the top wall and the top of the liquid medium to effect cushioning. After circumferencial flow, the liquid flows radially inwardly into an inner fluid chamber through a plurality of openings in an inner cylindrical wall. Within the inner chamber and spaced between the bottom wall and the top wall is a diffuser section. The diffuser section provides a large plurality of parallel fluid flow paths to dampen remaining major currents by lowering the fluid velocity and thus the Reynolds number. The upper surface is arcuate. Thus fluid flows radially upwardly and inwardly to a knife-edged type orifice which results in laminar fluid flow exiting therefrom. In a preferred embodiment, a light source is located within the inner chamber and is offset from the center line of the inner chamber. Focusing means are also provided in the inner chamber to direct the light path so as to align the light path with the orifice so that the light follows the laminar fluid flow. In accordance with another embodiment of the present invention the inlet to the outer chamber includes a double walled bladder-like hose wherein fluid is made to flow in a parallel manner first forwardly within the tube and then backwardly within the tube and then again forwardly to further dampen and isolate the system from pressure variations including pump noise.
REFERENCES:
patent: 1952994 (1934-03-01), Laird
patent: 2210480 (1940-08-01), Brice
patent: 4326554 (1982-04-01), Gongwer
patent: 4585400 (1986-04-01), Miller
patent: 4634347 (1987-01-01), Gauffin et al.
Deichmann Ronald S.
Kuykendal Robert L.
Cummings Henry W.
Weldon Kevin
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