Water in oil detection plug

Details Water in oil detection plug Water in oil detection plug

1991-02-14

1992-03-17

Yasich, Daniel M.

Signals and indicators

Indicators

Chemically activated type

422 56, 436 40, C09K 300, G01N 3318

Patent

active

050958445

ABSTRACT:
A water detection plug for use in a marine engine or the like having lubricants such as oil contained therein including an arrangement for indicating the presence of water in the lubricant when the water is in contact with the plug such that the indicator arrangement presents a first distinct visual appearance when not in contact with water and a second distinct visual appearance different from the first visual appearance when the plug is in contact with water, thereby generating a visual signal which is visible to an observer located outside the device when the lubricant in contact with the plug becomes mixed with water.

REFERENCES:
patent: 2506806 (1950-05-01), Metzger
patent: 2951461 (1960-09-01), Lockwood
patent: 3000345 (1961-09-01), Gray, Jr. et al.
patent: 3217689 (1965-11-01), Knight et al.
patent: 3976572 (1976-08-01), Reick
patent: 4063452 (1977-12-01), Bradshaw
patent: 4717671 (1988-01-01), Melpolder
patent: 4757710 (1988-07-01), Haynes
patent: 4789363 (1988-12-01), Wicklein
patent: 4803876 (1989-02-01), Haynes

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