Patents by Inventor Keith O. Rolfe

Keith O. Rolfe 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: 4509894
    Abstract: Loading and unloading apparatus for a vehicle including a lifting frame having latches or hooks for attachment to a cargo body or platform, parallel motion links connecting the lifting frame to the vehicle, and hydraulic rams operable to move the links to move the load between a carrying position on the vehicle and a loading or unloading position at ground level behind the vehicle.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: April 9, 1985
    Inventor: Keith O. Rolfe
  • Patent number: 4355942
    Abstract: Loading and unloading apparatus for a vehicle including a lifting frame having latches or hooks for attachment to a cargo body or platform, parallel motion links connecting the lifting frame to the vehicle, and hydraulic rams operable to move the links to move the load between a carrying position on the vehicle and a loading or unloading position at ground level behind the vehicle.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: October 26, 1982
    Inventor: Keith O. Rolfe
  • Patent number: 4287997
    Abstract: A container for transported goods can be carried by a road transport vehicle arranged longitudinally or transversely, its length being approximately equal to its width. Supports fixed under the container define passages to receive, from either end and either side, the arms of a fork-lift vehicle, and further are made for inter-engagement with locating members on the container top so two superimposed similar containers are held in alignment. One end of the container, with a doorway and closure, also has means for releasably locking the container end to end with the corresponding end of another similar container.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: September 8, 1981
    Inventors: Keith O. Rolfe, Clifford E. Smith