Patents by Inventor Maier Johann

Maier Johann 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).

  • Clamping toolholder
    Patent number: 4204781
    Abstract: A disposable insert is retained in a toolholder recess by a downwardly biased pin element having a head part which abuts laterally against the insert hole wall and against two points of a projection extending into the insert hole.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: May 27, 1980
    Assignee: Schwarzkopf Development Corporation
    Inventor: Maier Johann