Device for automatic addition of a corrosion inhibitor to a cool

Details Device for automatic addition of a corrosion inhibitor to a cool Device for automatic addition of a corrosion inhibitor to a cool

1979-10-16

1981-06-16

Bernstein, Hiram

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Means separating or dissolving a material constituent

422277, 165134R, 73450, B01D 1102

Patent

active

042737443

ABSTRACT:
A device for the automatic addition of corrosion inhibitor into an automobile coolant system when the coolant mixture is diluted by water having an undesirable level of corrosiveness. The device is in the form of a hydrometer having a hollow stem adapted to receive a quantity of a corrosion inhibitor and having openings in the stem wall allowing contact of the liquid in the coolant system with the corrosion inhibitor when the specific gravity of the coolant liquid decreases below a predetermined level.

REFERENCES:
patent: 745521 (1903-12-01), Redstearn
patent: 1817676 (1931-08-01), Christie
patent: 1890900 (1932-12-01), Christie
patent: 2976129 (1961-03-01), Brehler
patent: 3045496 (1962-07-01), Frause
patent: 3390695 (1968-07-01), King
patent: 3598536 (1971-08-01), Christensen
patent: 3607103 (1971-09-01), Kiefer
patent: 3792979 (1974-02-01), Clinton
patent: 3809150 (1974-05-01), Holmes
patent: 3846078 (1974-11-01), Brett

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