Patents Assigned to Defond Manufacturing Ltd.
  • Patent number: 6130393
    Abstract: An electrical rocker switch includes a body having at least two switch terminals, an internal switching mechanism for momentarily making or breaking an electrical connection between the terminals, an actuating knob on the body for operating the switching mechanism, a rocker supported on the body for pivotal movement between a first position depressing the actuating knob relative to the body and a second position releasing the actuating knob, and a resiliently biassed member for maintaining the rocker in the first and second positions.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: October 10, 2000
    Assignee: Defond Manufacturing Ltd.
    Inventor: Raymond Wai Hang Chu
  • Patent number: 6118085
    Abstract: An electrical switch includes a body, pressure-actuated buttons, switch terminals having respective parts forming internal switches, cam sliders extending side-by-side between the buttons and the parts for movement by the buttons to turn on and off the internal switches. The buttons include a first button for turning off all but the first of the internal switches. The other buttons turn on the other internal switches. The first button incorporates a movable cam engageable with the sliders for momentarily turning on the first internal switch after the other internal switches have all been turned off.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: September 12, 2000
    Assignee: Defond Manufacturing Ltd.
    Inventor: Raymond Wai Hang Chu