Patents by Inventor Edwin J. Routson

Edwin J. Routson 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).

  • Portable concrete mixing and transport apparatus
    Patent number: 4387995
    Abstract: A portable concrete mixing and transport device comprises a trailer having wheels and a drum supported above the wheels, said drum being movable into and out of engagement with the wheels. Concrete mix carried in the drum is agitated by pulling the trailer with the drum in contact with the wheels, causing the drum to rotate. The drum may be tilted to allow pouring of the mix. The device allows for convenient and inexpensive transport and mixing of small quantities of concrete.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: June 14, 1983
    Inventor: Edwin J. Routson
  • Portable concrete mixing and transport apparatus
    Patent number: RE32043
    Abstract: A portable concrete mixing and transport device comprises a trailer having wheels and a drum supported above the wheels, said drum being movable into and out of engagement with the wheels. Concrete mix carried in the drum is agitated by pulling the trailer with the drum in contact with the wheels, causing the drum to rotate. The drum may be tilted to allow pouring of the mix. The device allows for convenient and inexpensive transport and mixing of small quantities of concrete.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: December 3, 1985
    Inventor: Edwin J. Routson