Patents by Inventor Bradley R. High

Bradley R. High 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: 6109363
    Abstract: The present invention includes an angle blade assembly capable of angular motion relative to a frame of a work machine. The angle blade assembly includes a blade assembly, a subframe connected to the blade assembly, and an actuating cylinder with a line of action. The subframe includes connecting and lever portions that are connected to define a primary vertical axis. The actuating cylinder is connected to the connecting and lever portions so that a secondary vertical axis is defined between the actuating cylinder and the lever portion. The connection of the actuating cylinder to the connecting and lever portions produces the angular motion of the blade assembly when the actuating cylinder is operated. During the angular motion of the blade assembly, the secondary vertical axis moves about the primary vertical axis and a substantially constant distance is maintained between the line of action of the actuating cylinder and a parallel line extending through the primary vertical axis.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: August 29, 2000
    Assignee: Caterpillar S.A.R.L.
    Inventor: Bradley R. High
  • Patent number: 6105680
    Abstract: The present invention includes an angle blade assembly with a blade assembly pivotally connected to a subframe. In certain operating conditions, such as pushing material along the ground, a spring trip mechanism, including a plurality of springs, is connected between the blade assembly and the subframe. The springs are preset at a desired tension therebetween to control the pivotal movement of the blade assembly relative to the subframe when the blade assembly encounters variances in the ground elevation. When the angle blade assembly is used for a different operating function that does not require the spring trip mechanism, a locking device is connected between the blade assembly and the subframe. The locking device restricts the pivotal movement of the blade assembly relative to the subframe and, thereby, disables the control action of the springs. The disablement of the control action of the springs is accomplished without removal of the springs, saving the time and energy of an operator.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: August 22, 2000
    Assignee: Caterpillar S.A.R.L.
    Inventor: Bradley R. High