Patent ID: 8166906
Filing Date: 2012-05-01
Classification: G01K,G04F

Abstract:
1. A stimulus indicating device comprising: a first compartment; a stimulus sensitive gel contained in said first compartment that is capable of contracting in volume in response to exposure to a predetermined stimulus; at least one of several constituent parts contained in said stimulus sensitive gel that is capable of being expelled from said stimulus sensitive gel into said first compartment when said stimulus sensitive gel contracts in volume in response to exposure to a predetermined stimulus; an indication changing absorbent material contained in said first compartment that is capable of permanently changing from a first indication to a second indication upon coming into contact with and reacting with said at least one of several constituent parts expelled from said stimulus sensitive gel; and an indicator window positioned above said first compartment and positioned above said indication changing absorbent material, through which said indication changing absorbent material in said first compartment can be viewed.