Patents by Inventor Leonard A. Wrate

Leonard A. Wrate 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: 6202307
    Abstract: A motor driven, hand-held tubing cutter is disclosed, which can be held stationary by a worker while cutting the tubing, and does not require that the tubing be held in a vise or other clamping tool. The device is reversible, and upon completion of the cut, the device can be reset automatically to its initial position to receive a subsequent length of tubing for cutting. The tool has a motor-rotated cutting head into which the tubing to be cut is inserted, one or more cutting blades which are urged into cutting contact with the tubing wall by the motor-driven rotation of the head in cooperation with indexing bosses, and, once the tubing is cut through, reversal of the driving motors causes the blades to be retracted into the head, resetting the tool for further cutting. The tool may be used to cut any cuttable metal or plastic tubings, including tubing of aluminum, brass, copper, steel, ABS, PVC, polycarbonate, phenolic, etc.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: March 20, 2001
    Inventor: Leonard A. Wrate
  • Patent number: 5464193
    Abstract: A portable wire pulling device is disclosed which can be secured into pulling position and easily released. The device has a housing; a frame with vertical hollow posts, a sheave between the posts, a motor-driven extension clamp moveable outwardly from the posts to engage and secure to a stationary object; a motor driven capstan mounted on the housing; controls and selectors to select between AC and DC and to control the motors; and wheels and hand grips for moving the device; such that the device can be secured into position by the extension clamp and a wire feed pulling line attached to wires to be pulled routed over the sheave to the capstan and the wire pulled securely and evenly by the capstan. The device can be run on AC or DC power, or AC power can be used to charge internally mounted DC batteries. A full battery charge will allow the device to operate for a full eight-hour shift, and it can easily be recharged overnight.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: November 7, 1995
    Inventor: Leonard A. Wrate
  • Patent number: D520610
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: May 9, 2006
    Inventor: Leonard A. Wrate