Patents by Inventor Elizabeth J. Eckmann

Elizabeth J. Eckmann 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: 5749692
    Abstract: A fastener is formed from carbon steel wire so as to have an elongate shank defining an axis, an enlarged head formed at one end of the shank, and a generally pointed tip formed at the other end of the shank. The shank has a ringed portion formed with annular grooves defining annular rings and with helical grooves intersecting the annular grooves and defining helical ribs. The fastener is heat-treated, zinc-plated, and chromate-coated. Substantially all of the shank or of the fastener, as a whole, is further coated with a polymeric material to resist corrosion, to improve ease of driving the fastener, and to increase holding power of the fastener when driven through a wood, plywood, or plasterboard workpiece and then through a steel framing member. Substantially all of the shank or of the fastener, as a whole, may be thus coated with the polymeric material. The polymeric material softens and flows upon penetration and rehardens.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: May 12, 1998
    Assignee: Illinois Tool Works Inc.
    Inventors: Frederick A. Kish, Elizabeth J. Eckmann, Lawrence S. Shelton
  • Patent number: 5642974
    Abstract: A building assembly comprises a wooden board, a metal framing member, and a fastener having an elongate shank, an enlarged head, and a generally pointed end and fastening the board to the framing member. The shank has a ringed portion with annular grooves defining annular rings having a uniform, outer diameter, helical grooves intersecting the annular grooves, a cylindrical land having a smaller diameter and dividing the ringed portion into an axially longer subportion nearer to the tip and an axially shorter subportion nearer the head, a cylindrical land between the tip and the ringed portion, and a cylindrical land between the head and the ringed portion. The fastener is driven through the board and through the framing member wall so that the head bears against the board, so that the tip and the shank form, from the wall of the framing member, a generally annular lip projecting toward the tip and so that the lip is disposed around the cylindrical land dividing the ringed portion.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 1, 1997
    Assignee: Illinois Tool Works Inc.
    Inventors: William L. Gabriel, Lawrence S. Shelton, Henry A. Sygnator, Elizabeth J. Eckmann
  • Patent number: 5489179
    Abstract: A building assembly comprises a wooden board, a metal framing member, and a fastener having an elongate shank, an enlarged head, and a generally pointed end and fastening the board to the framing member. The shank has a ringed portion with annular grooves defining annular rings having a uniform, outer diameter, helical grooves intersecting the annular grooves, a cylindrical land having a smaller diameter and dividing the ringed portion into an axially longer subportion nearer to the tip and an axially shorter subportion nearer the head, a cylindrical land between the tip and the ringed portion, and a cylindrical land between the head and the ringed portion. The fastener is driven through the board and through the framing member wall so that the head bears against the board, so that the tip and the shank form, from the wall of the framing member, a generally annular lip projecting toward the tip and so that the lip is disposed around the cylindrical land dividing the ringed portion.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: February 6, 1996
    Assignee: Illinois Tool Works Inc.
    Inventors: William L. Gabriel, Lawrence S. Shelton, Henry A. Sygnator, Elizabeth J. Eckmann