Drinking vessel with indicator activated by inertial switch

A shot glass with indicator activated by a cantilever-type inertial switch, comprising:

• a shot glass having a body and a hollow base, said base having upper and lower walls and a side wall together defining a compartment having a maximum interior height of less than 15 mm, and
• an impact-responsive indicator circuit contained within said compartment, said indicator circuit including a low-profile, direction-sensitive inertial switch, an indicator, and a signal generator responsive to said inertial switch and having an output connected to said indicator, said inertial switch having a stationary contact and a cantilevered spring contact, said cantilevered spring contact having a longitudinal axis perpendicular to the longitudinal axis of said shot glass and having a maximum height within said compartment of less than 5 mm.

An illuminated drinking vessel, comprising:

• a drinking vessel;
• and
• an impact-responsive indicator circuit contained within said drinking vessel, said indicator circuit including an inertial switch, an indicator, a signal generator responsive to said inertial switch and having an output connected to said indicator, and a printed circuit board having said inertial switch and signal generator mounted thereon, wherein said inertial switch is a caseless switch consisting of a stationary contact and a movable contact both mounted directly to a surface of said board.