Patents by Inventor John L. Weale

John L. Weale 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).

  • Vibration detector incorporating two or more seismic elements
    Patent number: 4212208
    Abstract: A vibration responsive detector with two seismic elements mounted on a pair of parallel, electrically conductive rods, the rods being bent to cause the elements to tend to move toward each other and to be maintained in electrical connection so that a break in the connection indicates vibration.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: July 15, 1980
    Assignee: Inertia Switch Limited
    Inventors: John L. Weale, Stephen P. Wiles