Patents by Inventor Mark G. Swanburg

Mark G. Swanburg 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).

  • English/metric conversion mechanism for speedometers
    Patent number: 4284028
    Abstract: A conversion mechanism is attached to a speedometer in such a way that the input into the speedometer can be mechanically altered to establish a conversion ratio between a first system of units and a second system of units and the speedometer is indexed to display the speed measured in either system of units. The conversion apparatus is switchable between two modes to cause the speedometer to register selectively either of the two systems of units, and the apparatus is designed to be interposed at any point along the mechanical drive or input for the speedometer.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: August 18, 1981
    Inventor: Mark G. Swanburg