Patents Examined by Schultz
  • Chuck jaw
    Patent number: 5011167
    Abstract: The profiles of the threads on the jaws of a chuck, such as a three-jawed chuck, are modified so that at least one end of the jaw thread segments curve in away from the threads on the nut which operate the jaws. This prevents the end edges of the jaw thread segments from digging into the nut threads when the nut is rotated to operate the jaws.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: April 30, 1991
    Assignee: Jacobs Chuck Technology Corporation
    Inventor: Paul T. Jordan