Patents by Inventor Maurice J. Brooks

Maurice J. Brooks 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).

  • Electronically-controlled gas blending system
    Patent number: 4602653
    Abstract: A gas blending system includes a proportional mixing valve having a valve element movable between first and second limits of travel corresponding to a minimum and maximum percentage, respectively, of one of the gases in the blended mixture. The position of the valve element is detected by a detection mechanism, producing a position signal inputted to a microcomputer. The microcomputer also receives a control signal representing a desired percentage of one of the gases to be blended. The microcomputer calculates a desired valving element position as a function of the value of the control signal, and generates a drive signal as a function of a comparison made by the microcomputer between the detected valve element position and the desired position. A motor drives the valve element to the desired position in response to the drive signal.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: July 29, 1986
    Assignee: Bear Medical Systems, Inc.
    Inventors: Alberto Ruiz-Vela, Maurice J. Brooks, Douglas F. DeVries