Electronic controlled-duration switching
Power circuit control programmable timer
Timer and power control system
Wall switch opening mounted power circuit timer-controller
Apparatus and method for controlling electrical equipment
Automatic lighting disconnect timer incorporating an acoustic abort switch Patent #: 4422018
ApplicationNo. 06/439650 filed on 11/05/1982
US Classes:340/825, SELECTIVE307/132E, Electronically controlled relay307/141, With time delay or retardation means340/309.8, Separate diverse device activated by timer340/309.9, Separate diverse device deactivated by timer367/198Humanly generated sound or speech responsive (e.g., human whistle)
ExaminersPrimary: Yusko, Donald J.
Attorney, Agent or Firm
International ClassesH05B 39/00 (20060101)
H05B 37/02 (20060101)
H05B 39/08 (20060101)
AbstractAn energy saving light switch is disclosed. The light switch includes a human actuable switch and a control circuit responsive thereto. The control circuit operates a light in a first timed mode in which the light is turned on for a predetermined period of time responsive to an initial actuation of the switch and operates the light in a second untimed mode in which the light is turned on for an indefinite period of time responsive to the actuation of the switch during a predetermined time window forming part of the predetermined time period.