Patents by Inventor Ture Oskar Hultman

Ture Oskar Hultman 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).

  • Quick-change collet
    Patent number: 3947047
    Abstract: A quick-change collet is disclosed with a tool holding insert, fitted in a collet sleeve and with a locking device releaseable by an outer sleeve for retention and driving the insert in the collet sleeve. The outer sleeve is rotatably journalled on the insert and the bearing is so connected with the insert that the insert accompanies the outer sleeve when this is used as a hand hold to move the insert with tool out from the collet or to place it in the collet.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: March 30, 1976
    Assignee: Aktiebolaget Eminentverktyg
    Inventor: Ture Oskar Hultman