| Patent Number |
Title Of Patent |
Date Issued |
| 6585211 |
Wheel chocking device and method for using the same |
July 1, 2003 |
| A wheel chocking device (13) having a wheel chock (34) that can be raised from a retracted position to a raised position. In the retracted position, the wheel chock (34) is substantially flat, thereby allowing a truck (36) to be driven over the wheel chock (34). In the raised position, t |
| 6478525 |
Wheel chocking device and method for using the same |
November 12, 2002 |
| A wheel chocking device having a wheel chock that can be raised from a retracted position to a raised position. In the retracted position, the wheel chock is substantially flat, thereby allowing a truck to be driven over the wheel chock. In the raised position, the wheel chock can be |
| 6276496 |
Wheel chocking device |
August 21, 2001 |
| A wheel chocking device including a longitudinally-extending base frame positioned on the driveway, a chock positioned on the base frame and movable longitudinally relative to the base frame, and a drive mechanism drivingly connected to the chock. The drive mechanism comprises a power |
| 6250432 |
Wheel chocking device and method for using the same |
June 26, 2001 |
| A method of securing a vehicle at a desired location using a wheel chocking device (30) having a chock (38) movable between a lowered position and a raised position. The method comprises the steps of positioning the vehicle at the desired location with the chock (38) in the lowered posit |
| 5927928 |
Wheel chocking device |
July 27, 1999 |
| A loading dock having a dock face, a driveway positioned adjacent to the dock face, a wheel chock positioned above the driveway for movement relative to the driveway, and a power mechanism interconnected with the chock to provide power to the chock. The power mechanism is at least pa |
| 5600859 |
Dock leveler in which the ramp is raised and lowered using an inflatable member and method of us |
February 11, 1997 |
| A dock leveler including a ramp movable between a raised position and a lowered position is moved to its raised position by inflation of an inflatable member, such as an airbag supported beneath the ramp by a support assembly. The support assembly is removably mounted below the ramp |
| 5522107 |
Retaining arrangement for an inflatable member in a dock leveler |
June 4, 1996 |
| A dock leveler includes a ramp movable between a raised position and a lowered position in response to selective inflation of an inflatable member disposed between the ramp and a support located below the ramp, and an improved mounting arrangement for securing the airbag in position belo |
| 5416941 |
Dockboard having an improved return-to-dock-level mechanism |
May 23, 1995 |
| A dockboard having an improved return-to-dock-level mechanism. The dockboard includes a ramp having its rear edge hinged to the frame of the dockboard and a lip is hinged to the front edge of the ramp and is movable between a downwardly hanging pendant position and an extended position. |
| 5392481 |
Return-to-dock-level mechanism for a dockboard having a hydraulic holddown |
February 28, 1995 |
| A dockboard includes a ramp which is hinged at its rear edge to a loading dock and a lip is hinged to the front edge of the ramp and can be pivoted from a downwardly hanging pendant position to an extended position generally flush with the ramp surface. The ramp is moved from a horizonta |
| 5274867 |
Hydraulically operated edge-of-dock leveler |
January 4, 1994 |
| A hydraulically operated edge-of-dock dock leveler including a deck plate having its rear edge hinged to the dock and an extension lip is hinged to the front edge of the deck plate. In the storage position the deck plate is located in a generally horizontal position and the lip hangs dow |
| 5205010 |
Return-to-dock level mechanism for a hydraulic dockboard |
April 27, 1993 |
| A return-to-dock level mechanism for a power operated dockboard. The dockboard comprises a ramp which is hinged at its rear edge to the frame of the dockboard and a lip is hinged to the forward edge of the ramp. A ramp cylinder connects the frame and the ramp and acts to pivot the ramp |
| 5188015 |
Automatically sequenced hydraulic cylinder mechanism |
February 23, 1993 |
| An automatically sequenced hydraulic cylinder mechanism, including a hydraulic cylinder having a piston rod which is attached to a working member. The hydraulic system includes a pump which supplies hydraulic fluid to opposite sides of the cylinder. Due to the differential in surface |
| 4955923 |
Hydraulically operated dockboard |
September 11, 1990 |
| A hydraulically operated dockboard including a ramp which is hinged at its rear edge to the frame of the dockboard, and a lip is hinged to the forward edge of the ramp and can be pivoted between a downwardly hanging pendant position and an extended position. A main hydraulic cylinder uni |
| 4922568 |
Holddown mechanism for a dockboard |
May 8, 1990 |
| An improved dockboard mechanism for a mechanical dockboard. The dockboard includes a frame that is mounted on a loading dock and a ramp is hinged at its rear end to the frame and is movable between a generally horizontal cross traffic position and an upwardly inclined position. The ramp |
| 4784567 |
Vehicle restraint utilizing a fluid cylinder |
November 15, 1988 |
| An improved vehicle restraint for preventing movement of a vehicle, such as a truck away from a loading dock during a loading operation. The vehicle restraint includes a guide frame mounted on the front face of the loading dock and a hook is disposed to move vertically on the guide frame |
| 4767254 |
Vehicle restraint having an upwardly biased restraining member |
August 30, 1988 |
| A vehicle restraint for preventing accidental movement of a vehicle away from a loading dock. The vehicle restraint comprises a frame mounted on the front face of the dock and a restraining member having a hook-like configuration is mounted for movement on the frame between the lower |
| 4759678 |
Vehicle restraint utilizing a fluid cylinder |
July 26, 1988 |
| An improved vehicle restraint for preventing movement of the vehicle such as a truck away from a loading dock during a loading operation. The vehicle restraint includes a guide frame mounted on the front face of the loading dock and a carriage or slide is moved vertically on the guide |
| 4674941 |
Vehicle restraint using a parallelogram linkage |
June 23, 1987 |
| A vehicle restraint for preventing a vehicle, such as a truck, from pulling away from the loading dock during a loading operation. The vehicle restraint includes a frame or supporting structure which is mounted on the generally horizontal driveway in front of the loading dock, and a |
| 4665579 |
Counterbalancing mechanism for an edge-of-dock dockboard |
May 19, 1987 |
| An improved counterbalancing mechanism for an edge-of-dock dockboard. The dockboard comprises a frame mounted on a loading dock and one end of a center plate is pivotally connected to the frame. A lip is hinged to the opposite end of the center plate and is movable between a downwardly |
| 4619008 |
Dockboard construction |
October 28, 1986 |
| A pit-mounted dockboard which eliminates the need for a conventional sub-frame and has an improved mechanism for retracting the cross traffic legs when the ramp is moved to a downwardly inclined below dock level position. The dockboard includes a ramp hinged to the supporting structure |
