Patents Assigned to SPX Dock Products Inc.
  • Patent number: 7216392
    Abstract: A dock leveler including a support leg system configured to remain in a support position when the dock leveler descends rapidly and retract when the dock leveler descends slowly. Also, a dock leveler including a multi-tiered lip keeper support system for supporting the ramp at more than one position. In addition, a method of supporting a dock leveler ramp. The method includes attaching a first and second lip engaging apparatus under the ramp.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: May 15, 2007
    Assignee: SPX Dock Products, Inc.
    Inventors: Richard K. Hoofard, David C. Saliger
  • Patent number: 7131160
    Abstract: A dock leveler for bridging the gap between a loading dock and the bed of a vehicle parked at the loading dock. The dock leveler is configured for installation on the top of the dock and is designed to rotate from a vertically-stored raised position to at least one lowered, operative position. In some embodiments, the dock leveler can be lowered either for normal operation so that the deck assembly rests on the bed of the vehicle or it can be lowered to accommodate an end-loading condition.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: November 7, 2006
    Assignee: SPX Dock Products Inc.
    Inventors: James C. Alexander, Richard Hoofard
  • Patent number: 7100233
    Abstract: A dock leveler for bridging the gap between a loading dock and the bed of a vehicle parked at the loading dock. The dock leveler is configured for installation on the top of the dock and is designed to rotate from a vertically-stored raised position to at least one lowered, operative position. In some embodiments, the dock leveler can be lowered either for normal operation so that the deck assembly rests on the bed of the vehicle or it can be lowered to accommodate an end-loading condition.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: September 5, 2006
    Assignee: SPX Dock Products, Inc.
    Inventors: James C. Alexander, Richard Hoofard
  • Patent number: 7062813
    Abstract: An apparatus for supporting a dock leveler in a manner to reduce the effects of free fall and stump-out. The apparatus includes the use of a retractable support leg.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: June 20, 2006
    Assignee: SPX Dock Products, Inc.
    Inventors: Richard K. Hoofard, James C. Alexander, Douglas H. Massey, Michael M. Meichtry
  • Patent number: 7047584
    Abstract: In one embodiment, a dock leveler includes a support leg system configured to remain in a support position when the dock leveler descends rapidly and retract when the dock leveler descends slowly. In another embodiment, a dock leveler includes a multi-tiered lip keeper support system for supporting the ramp at more than one position. In another embodiment, a method of supporting a dock leveler ramp includes attaching a first and second lip engaging apparatus under the ramp.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: May 23, 2006
    Assignee: SPX Dock Products, Inc.
    Inventors: Richard K. Hoofard, David C. Saliger
  • Patent number: 7043790
    Abstract: A dock leveler for bridging the gap between a loading dock and the bed of a vehicle parked at the loading dock. The dock leveler is configured for installation on the top of the dock and is designed to rotate from a vertically-stored raised position to at least one lowered, operative position. In some embodiments, the dock leveler can be lowered either for normal operation so that the deck assembly rests on the bed of the vehicle or it can be lowered to accommodate an end-loading condition.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: May 16, 2006
    Assignee: SPX Dock Products, Inc.
    Inventors: James C. Alexander, Richard Hoofard
  • Patent number: 7044474
    Abstract: A wiper seal apparatus for forming a weather seal between a vehicle and a loading dock is provided. The wiper seal apparatus includes a seal member which bends toward a support mounted on a warehouse wall when deflected toward the wall, and applies a pressure on the top surface of a parked vehicle to form a seal.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: May 16, 2006
    Assignee: SPX Dock Products, Inc.
    Inventor: William C. Eungard
  • Patent number: 6975226
    Abstract: A unified docking apparatus is provided. It includes a single set of controls to operate a vehicle restraint, a dock door, a barrier device, a dock seal, and a loading light. Some optional embodiments include selector switch to select which apparatus the single set of controls will control. Other optional embodiments automatically select the apparatus to be controlled by the single set of controls. A method of operating a docking apparatus using a single set of controls is also provided.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: December 13, 2005
    Assignee: SPX Dock Products Inc.
    Inventors: Terence Reynard, James C. Alexander
  • Patent number: 6931686
    Abstract: A dock leveler includes a support leg system configured to remain in a support position when the dock leveler descends rapidly and retract when the dock leveler descends slowly. A disengaging system is also included to disengage the support legs from retracting when the dock level lip is in a pendant position. A method of operating a dock leveler includes keeping a support leg in a support position when a dock leveler descends rapidly and retracting a support leg when the dock leveler descends slowly.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: August 23, 2005
    Assignee: SPX Dock Products Inc.
    Inventors: Richard K. Hoofard, James C. Alexander, Douglas H. Massey
  • Patent number: 6918151
    Abstract: A support leg system and method for supporting a dock leveler. The support leg system includes a support leg, cam, engaging surface, and counterbalancing apparatus. The method includes moving a support leg to a non-supporting position when the dock leveler ramp is engaged with a vehicle, and moving the support to a supporting position if the dock leveler ramp descends too quickly.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: July 19, 2005
    Assignee: SPX Dock Products Inc.
    Inventor: Douglas H. Massey
  • Patent number: 6896469
    Abstract: A valve circuit, including a first and second circuit portion, for hydraulically controlling a loading dock vehicle restraint. The first circuit portion permits raising and lowering of the vehicle restraint. The second circuit portion permits extension and retraction of the vehicle restraint. Preferably, the first and second circuit portion are separate and are configured on the same valve block.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: May 24, 2005
    Assignee: SPX Dock Products, Inc.
    Inventor: James C. Alexander
  • Patent number: 6842930
    Abstract: The dock leveler is adapted to be mounted to a loading dock and includes a ramp, a guard, and a biasing member. The ramp is rotatably coupled to the loading dock and the guard is rotatably coupled to the ramp. The guard is rotated between a raised position that forms a barrier and a lowered position that permits loading equipment to freely pass. The biasing member is coupled to the guard and biases the guard toward the raised position when the guard is in the raised position and biases the guard toward the lowered position when the guard is in the lowered position.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: January 18, 2005
    Assignee: SPX Dock Products Inc.
    Inventors: Douglas H. Massey, Kim Duvernell, Michael M. Meichtry
  • Patent number: RE39404
    Abstract: The invention concerns a loading bridge for making a connection between a loading platform and a vehicle, wherein the height of the bridge is variable at the side of the vehicle to allow for vehicles with different heights. A gas-operated driving mechanism is disclosed of which the costs are considerably less than prior art hydraulic driving mechanisms. Further a mechanism is disclosed for automatically controlling the movements of a lid connected with the loading bridge.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: November 21, 2006
    Assignee: SPX Dock Products, Inc.
    Inventor: Johannes H. Megens