Patents by Inventor Bruce W. Lindabury

Bruce W. Lindabury has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Adjustable beam focus flashlight
    Patent number: 4987523
    Abstract: An illumination device, for example, a flashlight includes an adjustable beam focus assembly to change the relative position of the lamp bulb to the reflector to alternately provide a narrow focused or wide beam being emitted from the device. The adjustable beam focus assembly includes a resilient blade supporting the lamp bulb extending through an opening in a reflector of the device. Beam focusing is achieved by flexing the blade upon application of a displacing force to the base of the bulb by a cam or to the blade itself using a plunger.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: January 22, 1991
    Assignee: Bruce Wayne Lindabury
    Inventors: Bruce W. Lindabury, Ralph J. DeVito