Patents by Inventor Erwin Henn

Erwin Henn 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).

  • Process for the flame-scarfing of faulty areas
    Patent number: 3932199
    Abstract: A process for flame scarfing places of errors or surface defects on a work piece such as ingots, slabs or the like, by means of at least one flame-scarfing torch is characterized by raising and/or accelerating the flame-scarfing torch from its flame-scarfing position prior to the end of the place of error without changing the other flame scarfing parameters.
    Type: Grant
    Filed: July 17, 1973
    Date of Patent: January 13, 1976
    Assignee: Messer Griesheim GmbH
    Inventors: Alfred Lucht, Erwin Henn