Patent ID: 7115824

Claim:
A tilt switch having a top end, a bottom end, and sides between said top end and said bottom end, and at least one electrical terminal on said top end and one electrical terminal on said bottom end, comprising: a can assembly having a cavity and an opening into said cavity on said top end: a cap assembly covering said opening of said can assembly; and a rollable conductive member in said cavity; wherein: said cap assembly comprises a conductive cap having substantially uniform thickness at least in the center section being said electrical terminal on said top end; said can assembly, comprising: a conductive can being said electrical terminal on said bottom end; and an insulator member insulating said conductive cap from said conductive can; said can assembly surrounds said conductive cap so that said conductive cap is not exposed on the sides of said tilt switch; said rollable conductive member when resting on the bottom inside said conductive can is not in electrical contact with said conductive cap; and said rollable conductive member rests on the inside wall of said can assembly and said conductive cap allowing electricity to flow between said conductive can and said conductive cap when said tilt switch is in a predetermined range of tilt positions.