Proximity pad with controlled illumination
Patent 4016453 Issued on April 5, 1977. Estimated Expiration Date: 
April 5, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 5, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3307071 3648107 3666988 3787732 Self timing switch Patent #: 3965465 InventorApplicationNo. 05/667114 filed on 03/15/1976US Classes:315/312, PLURAL LOAD DEVICE SYSTEMS307/38, Selectively connected or controlled load circuits307/652, Responsive to approach or passage of an object315/135, Discharge device and/or rectifier in the signal circuit315/178, PLURAL DIVERSE-TYPE LOAD DEVICES315/360, TIME-CONTROLLED315/362, ELECTRIC SWITCH IN THE SUPPLY CIRCUIT327/517Responsive to proximity or touchExaminersPrimary: LaRoche, Eugene R.Attorney, Agent or FirmAbstractA small thin console or pad has a metal proximity switch actuated by a control ring mounted on one surface, with a small light bulb within the ring. The pad is used for remote control of a load which may be a lamp, or some other electric appliance such as a radio or stereo. The pad is connected to a wall outlet unit containing a triac as a switching device for the load. The light bulb on the pad is normally at a low glow for a night light. When the metal ring is first touched the triac is turned on for the load; and when it is touched again the triac is turned off, thereby shutting off the load, while the light on the pad is brought up to full brilliance for a predetermined interval of time as a courtesy light, and then returns to the normal night light intensity. | |
