Patents Assigned to Crudgington Machine Tools, Inc.
  • Publication number: 20020056344
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment worth with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Application
    Filed: November 23, 2001
    Publication date: May 16, 2002
    Applicant: Crudgington Machine Tools, Inc
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Publication number: 20010037707
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment worth with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Application
    Filed: June 27, 2001
    Publication date: November 8, 2001
    Applicant: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Patent number: 6305257
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: October 23, 2001
    Assignee: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Patent number: 6286402
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 11, 2001
    Assignee: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Publication number: 20010018853
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment worth with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Application
    Filed: May 3, 2001
    Publication date: September 6, 2001
    Applicant: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Patent number: 6164173
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: December 26, 2000
    Assignee: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Patent number: 5918514
    Abstract: A multi-spindle CNC lathe (50) comprises a frame assembly (104) mounted on a base (52) and including spaced apart, rigidly interconnected subframes (106, 108) defining spaced, parallel alignment surfaces (120, 122, 124, 126). A plurality of spindles (430) each includes a collet (450) for rotating a stock about a spindle axis. An indexing mechanism (640) positions the spindles (430) in alignment with work stations located at equally spaced intervals about a central axis. Identical internal ram tool slides (220) mounted on the alignment surface (110) of one of the subframes (106) each comprises a servo mechanism (224) for advancing and retracting a cutting tool along a work station axis.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: July 6, 1999
    Assignee: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington
  • Patent number: 5676030
    Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment with work stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: October 14, 1997
    Assignee: Crudgington Machine Tools, Inc.
    Inventors: John G. Crudgington, Graham J. Crudgington