Patents by Inventor Marvin F. Hayes, Sr.

Marvin F. Hayes, Sr. 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).

  • Patent number: 4106579
    Abstract: A load analyzer is provided for use with an automotive vehicle in which sensors having relatively reciprocal elements are arranged between the load bed and the axles of the vehicle. The load bed is spring biased relative to the axles, so that loading of the vehicle forces the load bed downward, thereby altering the relative position of the elements of the sensors. Each sensor provides a signal indicative of the relative position of its elements. An indicator responds to the signal by indicating the weight present in the load bed, as derived from the magnitude of the sensor signal, which in turn is proportional to the spring constant of the springs supporting the load bed relative to the axles. The indicator is adjustable so that it may be recalibrated by placing a known weight in the vehicle load bed and adjusting the output indication to correspond to that weight.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: August 15, 1978
    Inventors: Marvin F. Hayes, Sr., Marvin F. Hayes, Jr.