Patents Assigned to Wheellock, Inc.
  • Zero inrush alarm circuit
    Patent number: 5673030
    Abstract: A zero inrush visual or visual/audible alarm circuit which includes a transistor switch and resistor combination connected in series with a storage capacitor provides inrush resistance for a period following initial power-on. The transistor switch may be controlled by a microcontroller or a simple timer.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: September 30, 1997
    Assignee: Wheellock, Inc.
    Inventor: Joseph Kosich