Patents by Inventor Willi Lewandowski

Willi Lewandowski 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).

  • Machine tool with detachable tool shielding means
    Patent number: 4551953
    Abstract: A grinding machine wherein the spindle for one or more grinding wheels is at least partially surrounded by a two-piece protective device whose hood is secured to the machine frame and whose cover is detachable by a mechanism on a tool changing device which accepts grinding wheels from the spindle, which delivers such grinding wheels to a magazine and which attaches fresh grinding wheels to the spindle. The mechanism retracts the cover from the hood in the axial direction of the spindle as soon as a reciprocable carriage of the tool changing device assumes a tool changing position in front of the spindle.
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: November 12, 1985
    Assignee: Hauni-Werke Korber & Co. KG.
    Inventor: Willi Lewandowski