Patents Assigned to Universal Protection Corp.
  • Patent number: 4924799
    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.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: May 15, 1990
    Assignee: Universal Protection Corp.
    Inventor: John F. Rilling