Patents Assigned to Response Technology Corporation
  • Method and apparatus for causing electric lamp to flash
    Patent number: 5451844
    Abstract: A circuit that includes a latch and an oscillator is attached to a common lamp control switch to cause the lamp to flash when the switch is manipulated in accordance with a prescribed pattern. The flashing draws attention to the lamp and is used, for example, in an emergency. In a first embodiment, the circuit is placed in parallel with the switch. In a second embodiment, the circuit is placed in series with the switch. In both embodiments, the circuit is small enough to fit within an existing switch box.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: September 19, 1995
    Assignee: Response Technology Corporation
    Inventors: Gerald D. Walkos, Dana R. Harn, William I. Walkos