Patents by Inventor Thomas B. Truesdell

Thomas B. Truesdell 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 replacement toolholder for milling machine
    Patent number: 5403132
    Abstract: A toolholder for securing a tool in the collet of a mill, the collet having a fluted open end wherein the toolholder is a pair of concentrically arranged cylinders, one cylinder inside the other and each having flutes. The inner cylinder has an axial bore for receiving the shank off the tool so that the flared end of the spindle squeezes the fluted ends of the pair of cylinders and the shank of the tool so as to secure the shank of the tool concentric with the collet and spindle of the mill.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: April 4, 1995
    Inventor: Thomas B. Truesdell