Patents by Inventor Jay L. Welford

Jay L. Welford 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 speed bump device
    Patent number: 5267808
    Abstract: A selectively retractable and extendable electronically controlled vehicle speed bump mounted in a street, road or roadway for controlling the speed of vehicles includes a sensor for detecting or sensing vehicle speed, a microprocessor responsive to the sensor for generating a signal to activate the speed bump, and an actuator for extending and retracting the speed bump.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: December 7, 1993
    Inventor: Jay L. Welford