Inversion indicator

Details Inversion indicator Inversion indicator

1988-09-26

1990-05-15

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Chemically activated type

116215, G08B 500, G01D 2100

Patent

active

049247999

ABSTRACT:
An indicator for detecting whether the indicator has been inverted or tilted beyond a critical angle. The indicator includes a pair of reactants contained within two discrete reservoirs which are separated by a fluid passageway. When the indicator is tilted beyond the critical angle the reactants are contacted producing a reaction product having a color change. The indicator also provides a splash protector to prevent false positive reactions when the unit is agitated but has not been tilted. A first reactant is contained within a frangible ampule that can be broken when the indicator is activated for use. The color change is visible from the outside of the container.

REFERENCES:
patent: 1356303 (1920-10-01), Monahan
patent: 3437070 (1969-04-01), Campbell
patent: 3880108 (1975-04-01), Anton
patent: 3923000 (1975-12-01), Cloyd
patent: 4340008 (1982-07-01), Mendelson

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