Patents by Inventor Dwight J. Niswander

Dwight J. Niswander 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: 5643105
    Abstract: A golf club includes a male hosel which is inserted into the lower end of a shaft. A sleeve is positioned over the lower end of the shaft and over a radially enlarged portion of the hosel. The shaft abuts a first radially extending shoulder on the hosel, and the sleeve abuts a second radially extending shoulder on the hosel.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: July 1, 1997
    Assignee: Wilson Sporting Goods Co.
    Inventor: Dwight J. Niswander
  • Patent number: 5632695
    Abstract: A wood type golf clubhead includes a face, a sole, a crown, a toe portion, a heel portion, and a hosel portion adjacent the heel portion. The hosel portion has an inverted or recessed portion which includes a generally concave wall. A hosel tube extends upwardly from the hosel portion. The hosel tube is supported within a boss which is formed integrally with the inside surface of the face. An alignment groove is provided at the intersection between the face and the crown, and the groove includes a surface which lies within a plane which is substantially vertical when the clubhead is soled at address. The sole includes a flat portion for supporting the clubhead at address, and a rear wall curves upwardly and rearwardly from the flat portion to the crown. The toe portion and the crown merge at a relatively sharp angle to provide a streamlined shape.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: May 27, 1997
    Assignee: Wilson Sporting Goods Co.
    Inventors: Edward A. Hlinka, Dwight J. Niswander, Carl E. Scheie, Edward A. Schield, James L. Shenoha
  • Patent number: D375130
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: October 29, 1996
    Assignee: Wilson Sporting Goods Co.
    Inventors: Edward A. Hlinka, Dwight J. Niswander, Carl E. Scheie, Edward A. Schield, James L. Shenoha
  • Patent number: D378770
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: April 8, 1997
    Assignee: Wilson Sporting Goods Co.
    Inventors: Edward A. Hlinka, Dwight J. Niswander, Carl E. Scheie, Edward A. Schield, James L. Shenoha