Spirally fluted float

Details Spirally fluted float Spirally fluted float

1997-01-22

1998-04-28

Dombroske, George M.

Measuring and testing

Liquid level or depth gauge

Float

73305, 73320, G01F 2376

Patent

active

057431388

ABSTRACT:
A float device is disclosed with an improved external surface having an outwardly concave curvature and a plurality of elongated grooves spirally formed on the concave surface. The concave surface provides improved clearance between the float device and the walls of the pipe that it is disposed in. Therefore, the float device is less subject to being lodged or stuck especially in highly viscous liquids. The spiral grooves provide additional passageway and stability by imparting rotational torque to the floating device when measuring flow rates in moving fluids in pipes. In another embodiment, the float device is annular in shape having an inner surface with a curvature and spiral grooves. Same improved effects are obtained as the float device rides up and down a column like a collar in measuring the fluid level or fluid flow rates.

REFERENCES:
patent: 2678074 (1954-05-01), Admas
patent: 3370467 (1968-02-01), Healy
patent: 4051591 (1977-10-01), Thompson
patent: 4091659 (1978-05-01), Massey, III et al.
patent: 4289154 (1981-09-01), Quayle
patent: 5259245 (1993-11-01), Liu
patent: 5294917 (1994-03-01), Wilkins
patent: 5365969 (1994-11-01), Edwards

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