Abstract: A rope brake is provided for controlled lowering of a branch or limb cut from a tree by a person holding one end of the rope. The rope brake includes a drum mounted to a back plate. The back plate is mounted to the tree. The rope for lowering the branch or limb is threaded through guides on the drum and wrapped around the drum one, two or three times. One end of the rope is tied to the branch to be cut and the other end is held by the operator. When the branch is cut from the tree, the tension on the rope supplied by the operator controls the friction between the rope and the drum, such that the branch can be safely lowered in a controlled manner.

Abstract: A rope brake is provided for controlled lowering of a branch or limb cut from a tree by a person holding one end of the rope. The rope brake includes a drum mounted to a back plate. The back plate is mounted to the tree. The rope for lowering the branch or limb is threaded through guides on the drum and wrapped around the drum one, two or three times. One end of the rope is tied to the branch to be cut and the other end is held by the operator. When the branch is cut from the tree, the tension on the rope supplied by the operator controls the friction between the rope and the drum, such that the branch can be safely lowered in a controlled manner.

Abstract: An improved wood chipper and storage dump box assembly is provided on a trailer adapted to be towed behind a truck. The dump box is pivotally mounted on the trailer for movement between an upright fill position and a sideways tilted dump position. The brush chipper is mounted on a trailer behind the dump box to discharge chipped brush and material into the dump box through an opening in the back wall. The top of the dump box is open for loading logs and other unchipped material. The dump box includes a discharge opening in one side wall, with a door movable between open and closed positions relative to the discharge opening. Hydraulic actuators control movement of the door and tipping of the dump box, and are connected to the hydraulic system of the chipper.

Abstract: A content addressable memory device having a search parameter table.

Abstract: The present invention includes a method and system for providing an estimate of a summary of a data set generated by an unknown distribution. The method includes selecting a subset of data points from the data set, applying a scoring rule to each data point of the subset of data points based on an estimated relative location and an assigned weight for each data point to provide a score for each data point, selectively retaining data points to track based on the score for each data point; and determining an estimate of the summary of the data set based on the retained data points.

Abstract: The present invention includes a method and system for providing an estimate of a summary of a data set generated by an unknown distribution. The method includes selecting a subset of data points from the data set, applying a scoring rule to each data point of the subset of data points based on an estimated relative location and an assigned weight for each data point to provide a score for each data point, selectively retaining data points to track based on the score for each data point; and determining an estimate of the summary of the data set based on the retained data points.