Patents Assigned to Spitfire Tool and Machine Co.
  • Polishing fixture
    Patent number: 4319432
    Abstract: A polishing assembly and fixture providing a vertically movable pressure plate including a depending supporting member for a plurality of workpiece chucks positionable under pressure upon a rotatable polishing lap plate.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: March 16, 1982
    Assignee: Spitfire Tool and Machine Co.
    Inventor: Lawrence Day
  • Inner gear drive for abrading machines
    Patent number: 4315383
    Abstract: An overhead center pin drive gear for gear-shaped work carriers for two-lap lapping or finishing machines which will rotate the pin-driven gear-shaped work carriers about their respective axes independently of the rotation of the lapping plates.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: February 16, 1982
    Assignee: Spitfire Tool & Machine, Co. Inc.
    Inventor: Lawrence Day
  • Polishing fixture
    Patent number: 4020600
    Abstract: A high pressure polishing fixture assembly having a vertically movable pressure plate providing depending means for engagement with a plurality of workpiece-carrying heads positionable under pressure upon a rotatable polishing plate.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: May 3, 1977
    Assignee: Spitfire Tool & Machine Co., Inc.
    Inventor: Lawrence Day
  • Lapping machine with vacuum workholder
    Patent number: 4009539
    Abstract: A lapping machine comprising a removable workholder adapted to be mounted through a vacuum system upon a supporting arm rotatable about a horizontal axis, with the vacuum system functioning to retain a workpiece upon the workholder as the same is rotated with the arm relative to a rotatable lap of the machine.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: March 1, 1977
    Assignee: Spitfire Tool & Machine Co., Inc.
    Inventor: Lawrence Day