Patents Assigned to Chamberlain Manufacturing Company
  • Quick change collet tool holder assembly
    Patent number: 4171821
    Abstract: A quick change tool holding assembly of the collet type is disclosed wherein a machine spindle carried collet assembly includes gripper members engageable with surfaces of a tool holder carried nut interior of the collet assembly to maintain the nut on the spindle. In order to prevent entry of coolant and other foreign matter into the interior of the collet assembly the assembly is provided with an axially extending circumferential inner diameter land below the gripper members and the nut is provided with a seal member engaging the land.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: October 23, 1979
    Assignee: Chamberlain Manufacturing Company
    Inventor: Boyd L. Miller