Coolant line hydrometer

Details Coolant line hydrometer Coolant line hydrometer

1985-02-07

1987-03-17

Myracle, Jerry W.

Measuring and testing

Specific gravity or density of liquid or solid

Multiple floats of graduated density

G01N 910

Patent

active

046497471

ABSTRACT:
A hydrometer unit permanently connected in an engine coolant line enables an immediate visual check on the adequacy of the anti-freeze constituent, such as ethylene glycol, in the system. The hydrometer includes a coolant receiving chamber having a transparent viewing portion and a number of variously colored float elements within the chamber provide an accurate indication of anti-freeze strength based on specific gravity. No manipulation of the hydrometer is required to enable a checking of the strength or weakness of the anti-freeze.

REFERENCES:
patent: 1683735 (1928-09-01), Smith
patent: 2681034 (1954-06-01), Mannion
patent: 3460395 (1969-08-01), Shaw
patent: 3626763 (1971-12-01), White
patent: 3631727 (1972-01-01), White
patent: 3641825 (1972-02-01), Reid
patent: 3895964 (1975-07-01), Sakamoto

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