Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1991 | Invention patented by Bobby A. Cook on January 24th, 1991. Abstract: An apparatus for operating a dock leveler including a linkage pivotably connected at a first end to the base plate. The second end of the linkage is adapted to selectively engage the center plate at times when the center plate is pivoted from its forward position toward its rearward position. Preferably, the second end of the linkage includes a roller apparatus to roll along the underside of the center plate during the pivoting operation. A lever tube is rigidly connected to the second end of the linkage and is adapted to hold an operating lever. The operating lever is in a substantially vertical orientation at times when the center plate is in the stored and bridging positions. When the center plate is in the retracted position, the operating lever is adapted to be in a position that is easily reachable by the operator with only a minimal degree of bending required. |
| 1992 | Invention patented by Bobby A. Cook on July 15th, 1992. Abstract: An apparatus for operating a dock leveler including a linkage pivotally connected at a first end to the base plate. The second end of the linkage is adapted to selectively engage the center plate at times when the center plate is pivoted from its forward position toward its rearward position. Preferably, a roller is provided on the second end of the linkage and a cam member is mounted on the underside of the center plate in alignment with the path of the roller, such that the roller travels along the cam member to reduce the force required to operate the center plate pivoting means. A lever tube is rigidly connected to the second end of the linkage and is adapted to hold an operating lever. The operating lever is in a substantially vertical orientation at times when the center plate is in the stored and bridging positions. When the center plate is in the retracted position, the operating lever is adapted to be in a position that is easily reachable by the operator with only a minimal degree of bending required. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
