Patents by Inventor Theodore J. Bren, Jr.

Theodore J. Bren, Jr. 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).

  • Apparatus for forming agricultural drip tape
    Patent number: 6920907
    Abstract: A process for forming irrigation drip tape includes, broadly, the steps of a) supplying a longitudinally continuous strip of flexible plastic material in a first direction; b) heating a narrow band of the strip along a longitudinal axis thereof; c) depositing a continuous bead of material on an upper surface of the strip, along the narrow band, while the strip moves in the one direction; d) cooling the strip and the bead; e) folding the strip longitudinally so that the longitudinal edges overlap; and f) sealing said longitudinal edges to form a tubular drip tape with a longitudinal, overlapped seam, with the bead extending parallel to the seam and in opposed, facing relationship thereto.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: July 26, 2005
    Assignee: Nelson Irrigation Corporation
    Inventors: Charles R. Harrold, Theodore J. Bren, Jr.
  • Apparatus for forming agricultural drip tape
    Patent number: 6543509
    Abstract: A process for forming irrigation drip tape includes, broadly, the steps of a) supplying a longitudinally continuous strip of flexible plastic material in a first direction; b) heating a narrow band of the strip along a longitudinal axis thereof; c) depositing a continuous bead of material on an upper surface of the strip, along the narrow band, while the strip moves in the one direction; d) cooling the strip and the bead; e) folding the strip longitudinally so that the longitudinal edges overlap; and f) sealing said longitudinal edges to form a tubular drip tape with a longitudinal, overlapped seam, with the bead extending parallel to the seam and in opposed, facing relationship thereto.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: April 8, 2003
    Assignee: Nelson Irrigation Corporation
    Inventors: Charles R. Harrold, Theodore J. Bren, Jr.
  • Method and apparatus for forming agricultural drip tape
    Patent number: 6120634
    Abstract: A process for forming irrigation drip tape includes, broadly, the steps of a) supplying a longitudinally continuous strip of flexible plastic material in a first direction; b) heating a narrow band of the strip along a longitudinal axis thereof; c) depositing a continuous bead of material on an upper surface of the strip, along the narrow band, while the strip moves in the one direction; d) cooling the strip and the bead; e) folding the strip longitudinally so that the longitudinal edges overlap; and f) sealing said longitudinal edges to form a tubular drip tape with a longitudinal, overlapped seam, with the bead extending parallel to the seam and in opposed, facing relationship thereto.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: September 19, 2000
    Assignee: Micro Irrigation Technologies, Inc.
    Inventors: Charles R. Harrold, Theodore J. Bren, Jr.