Patents by Inventor John H. Scofield

John H. Scofield 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).

  • Wave sensor control system
    Patent number: 5912625
    Abstract: A control system utilizes generated acoustic or electromagnetic waves within a deformable wall wave guide. The wave guide is located in the surveillance area and, upon the wave guide being deformed by an obstruction or an intruder, the characteristics of the wave within the change. The change is sensed by a receiver which produces a control signal to activate an alarm and/or an operating system if the control system is used to control moving elements, such as a door or gate. The wave guide can constitute a homogeneous portion of door weatherstripping.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: June 15, 1999
    Inventor: John H. Scofield