Patents by Inventor Johann Hortnagl

Johann Hortnagl 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).

  • Publication number: 20080014412
    Abstract: A composite handle for a tool has a hard plastic material core and a softer grip cover with a natural component such as cork, cotton, flax, wood, or the like in a matrix of synthetic material. The two components are sequentially injection molded and a portion of the handle surface is formed by the soft grip cover and the remainder of the exterior surface is formed by the hard core. After the first injection shot, in which the hard plastic core is formed, the core is placed in a second mold and the temperature of the core is held at 55°-70° C. when the second shot is injected. The second component material with the natural component intimately distributed in the matrix of synthetic material may be injected at a temperature of up to approx. 220° C. and its final hardness is set by selectively mixing and adjusting the relative quantities of the natural component and the synthetic material.
    Type: Application
    Filed: July 14, 2006
    Publication date: January 17, 2008
    Inventors: Johann Hortnagl, Gerhard Pliessnig
  • Patent number: D442446
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: May 22, 2001
    Inventor: Johann Hörtnagl
  • Patent number: D618971
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: July 6, 2010
    Inventor: Johann Hörtnagl
  • Patent number: D367410
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: February 27, 1996
    Assignee: E&O Hortnagle-Werkzeuge
    Inventor: Johann Hortnagl
  • Patent number: D367594
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: March 5, 1996
    Assignee: E&O Hortnagl-Werkzeuge
    Inventor: Johann Hortnagl
  • Patent number: D397021
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: August 18, 1998
    Inventor: Johann Hortnagl