Patents by Inventor Eric Wirgarth

Eric Wirgarth 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: 6457341
    Abstract: The invention relates to a forging apparatus used for forging a heated blank (24a), which in a pre-treated operation has been given a volume essentially corresponding to that of the final product, said forging apparatus comprising upper and lower die parts (2, 16) arranged to be brought together into abutting relationship and having contacting surfaces (42a, 18b) extending transversely of the direction of movement of the die parts, whereby when the contacting surfaces (42a, 18b) are pressed together and brought into contact with one another as result of pressure exerted thereon, the blank is shaped in conformity with a die cavity defined with precision by the die parts (2, 16). The configuration of the forged component then essentially agrees with that of the desired finished component, i.e. no or at least only minimum post-treatment is required.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: October 1, 2002
    Inventor: Eric Wirgarth