Patents by Inventor Carl J. Heltzel

Carl J. Heltzel 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).

  • Single load cell weigh hopper system
    Patent number: 4085850
    Abstract: The present disclosure is directed to arranging a weigh hopper in a free floating manner in a rigid frame so that the hopper either rests upon a load cell or pulls on a load cell while the hopper is free to move up and down in a rigid frame only influenced by flexing aligning rods which are not rigidly secured to the weigh hopper but are secured to the rigid frame. This structure eliminates the usual multiplicity of load cells common to this art.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: April 25, 1978
    Inventor: Carl J. Heltzel