Patents Assigned to Blue Giant Equipment of Canada Ltd.
  • Patent number: 4630989
    Abstract: The device for restraining a truck or transport trailer at a loading dock comprises a frame having a vertical securing face and a lower horizontal securing face for mounting of the device to a structure such as a loading dock and at least partially supported by a driveway in front of the loading dock. A pivotal bar member having one end pivotally secured to the frame above and intermediate the length of the lower horizontal bearing face and outwardly of the vertical securing face is movable from a generally horizontal vehicle release position to a vehicle restraining position with the bar generally perpendicular to the lower horizontal bearing face. The bar is moved by a hydraulic cylinder pivotally secured adjacent the forward end of the lower horizontal securing face and pivotally secured to said bar member to be angled rearwardly towards said vertical securing face. The cylinder is pivotally secured to arms extending below the bar beyond the pivot securement of the bar to the frame.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: December 23, 1986
    Assignee: Blue Giant Equipment of Canada Ltd.
    Inventor: Jack E. Davey
  • Patent number: 4453282
    Abstract: A dock leveller for releasable securement to a loading dock installation is disclosed. The dock leveller comprises a main frame with a ramp hinged to the main frame for swinging movement. Securement devices are provided for releasably securing the dock leveller to the dock installation. The securement devices comprise at least one latch for connecting the main frame to the dock installation. The arrangement of latches is such to fix securely the dock leveller to the dock for withstanding traffic over the ramp.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: June 12, 1984
    Assignee: Blue Giant Equipment of Canada Ltd.
    Inventor: Kurt K. Larsen
  • Patent number: 4450598
    Abstract: A lip construction for pivotal connection to the ramp of a dock leveller is disclosed. The lip comprises upper and lower rectangular steel plates providing front and rear lip edge portions. Means is provided for securing the lip rear edge portion for pivotal connection to a dock leveller ramp. The steel plates are bent along their lengths to define first and second lip portions which are slightly angled relative to each other. The lower plate extends slightly outwardly of the upper plate front portion, where the upper plate is secured along its front portion to the lower plate extension. The upper plate is also secured to the lower plate along the first lip portion. This arrangement places the upper plate of the second lip portion in compression and corresponding lower plate in tension when a load is applied to the lip during use.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: May 29, 1984
    Assignee: Blue Giant Equipment of Canada Ltd.
    Inventor: Kurt K. Larsen