Variable area flow meter

Details Variable area flow meter Variable area flow meter

1995-01-10

1996-05-14

Chilcot, Richard

Measuring and testing

Volume or rate of flow

Using differential pressure

7386147, G01F 137

Patent

active

055157343

ABSTRACT:
A variable area flow meter (10) for monitoring the rate of flow of a cooling and lubricating fluid medium about a pump seal, having a transparent flow tube (27) through which the fluid flows. An indicating and cleaning assembly (40) is mounted within the flow tube (27) and supports a spring by its float (56) that is movable back and forth along the length of the flow tube (27). A cleaning member (51) is affixed to the distal end (48) of a longitudinally extending shaft (46) of the indicating and cleaning assembly (40) and is tight frictional contact with the inner wall (28) of the flow tube (27). The float (56) and cleaning member (51) engage and scrape the inner side wall (28) of the flow tube (27) during a cleaning operation to remove any accumulated dirt and debris from the inner side wall (28) of the flow tube (27).

REFERENCES:
patent: 2377861 (1945-06-01), Brewer
patent: 3805611 (1974-04-01), Hedland
patent: 4389901 (1983-06-01), Lake
patent: 4945771 (1990-08-01), Ogden
patent: 5086654 (1992-02-01), Malminen
patent: 5317930 (1994-06-01), Wedding

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