Patents by Inventor Wilfried Eimer

Wilfried Eimer 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).

  • Chuck for tool inserts, especially screwdriver bits
    Patent number: 5195761
    Abstract: A chuck is provided for receiving and holding inserts having a non-circular shaft. The chuck includes a body having a non-circular cavity, and a capping sleeve rotatable on the body and extending beyond an end of the body. A locking plate is provided in the portion of the capping sleeve which extends beyond the end of the body, the locking plate having a non-circular opening with a profile corresponding to the profile of the cavity. The capping sleeve may be rotated relative to the body to the place the profile of the locking plate selectively in registry, or not, with the profile of the cavity.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: March 23, 1993
    Assignee: Willi Hahn GmbH & Co., KG
    Inventor: Wilfried Eimer