Patents by Inventor Robert B. Loeffler

Robert B. Loeffler 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: 4178123
    Abstract: A loader system for agricultural trailer boxes wherein a self-propelled carriage is provided with wheels to be driven on beams placed atop trailer boxes. The carriage supports conveyors extending over lateral sides of the trailer and the conveyors feed a chute emptying into the trailer interior. The beams of each trailer box can be linearly connected so that the carriage may be driven for one trailer to a queued trailer over a bridge formed by joining beams.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: December 11, 1979
    Inventor: Robert B. Loeffler