Arthur D. Little, Inc.

Dwain Aidala

Albert W Welz, Jr

An electronic timer switch adapted for installation in a standard switch receptacle and operative in response to applied AC power to provide a manually selectable operative duration. The timer switch is manually actuable to select an intended time interval and employs electronic circuitry for counting pulses derived from the input power frequency and to cause activation of a power switch during the selected interval. The switch can include indicators denoting selected and remaining time intervals and can include circuitry providing a warning indication of the approaching end of a selected interval.

Growing community of inventors

Marlboro, MA, United States of America

Dwain Aidala