Patents by Inventor Malcolm I. Heyworth

Malcolm I. Heyworth 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: 6367195
    Abstract: There is provided a tree irrigation device which includes a tree stand having a device for maintaining water around the butt end of a tree, a water reservoir located apart from the tree, and a conduit having a first end connected to the base of the water reservoir and a second end connected to the base of the device for maintaining water. When the device is assembled and water is placed in the reservoir, the level of water in the reservoir and the tree stand receptacle are the same.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: April 9, 2002
    Inventor: Malcolm I. Heyworth
  • Patent number: 5715770
    Abstract: A trailer for transporting a watercraft using a boat including a frame shaped for receiving one end of a personal watercraft, means for securing the frame to the aft of a boat, and means for securing the personal watercraft to the frame. A housing is connected to the frame to allow for storage of cargo or fuel. Latches are provided on the frame to allow for quick engagement and disengagement of the trailer and the watercraft. A flexible or rigid member is attached to the latches to allow for remote operation.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: February 10, 1998
    Inventor: Malcolm I. Heyworth
  • Patent number: 4693643
    Abstract: This planing device is operable for progressively planing or cutting the end of a plastic pipe to the desired length, or for reaming out a piece of plastic pipe fixed in a plastic pipe fitting in such a manner that the plastic pipe fitting can be reused. The pipe planing device is portable and is rotated by an electric drill or the like and includes a cylindrical pilot removably supported on radially spaced-apart spider-like cutter arms having cutter blades attached to their outer ends and extending outwardly beyond the cylindrical pilot a distance which is equal to the thickness of the plastic pipe to be cut or reamed. The outer circumference of the cylindrical pilot is dimensioned to provide a snug rotatable fit within the end of the plastic pipe to be planed and operates to center the planing device along the longitudinal axis of the plastic pipe.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: September 15, 1987
    Assignee: E&A Heyworth Enterprises, Inc.
    Inventor: Malcolm I. Heyworth