Patents by Inventor Beverley Barber

Beverley Barber 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).

  • Light cure system with closed loop control and work piece recording
    Patent number: 5521392
    Abstract: An apparatus for producing a preselected amount of light energy for use with photosensitive materials. The apparatus comprises a source for producing light; a light guide for delivering the light produced by the source to a work site; (c) a sensor means for detecting the intensity of the light produced by the source; and (d) a controller for determining the amount of light energy to be delivered to the photosensitive material at the work site. The apparatus includes a dimmer for controlling the intensity of light delivered to the work site and a shutter for controlling the exposure time for the work site. The dimmer and shutter are controlled by the controller so that a predetermined total quantity of light energy is delivered to the work site.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: May 28, 1996
    Assignee: EFOS Canada Inc.
    Inventors: John Kennedy, Beverley Barber, Gary Zubricky