Three Or More Moving Clamps Patents (Class 408/106)
  • Patent number: 8734066
    Abstract: The present is a hole saw tube notcher with a rotary vice that aligns a tubular workpiece and a hole saw aligning assembly with a rotatable arm that aligns a hole saw to form a single or multiple cut notch geometry with a set radial middle that remains fixed when the rotary arm is rotated and when different diameter workpieces and hole saws are secured to the notcher.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 27, 2014
    Inventor: Christopher J. Rusch
  • Patent number: 8172489
    Abstract: The present invention relates to a machine tool for machining of workpieces, having a workpiece support for mounting the workpiece, a tool holder, which can be moved at least along one axis, for holding a tool for machining the workpiece, and workpiece holding units for fixing the workpiece during the machining, the workpiece holding units being arranged outside the workpiece support surface of the workpiece support, which is covered by the workpiece in the mounted state, and each having a holding element for fixing the workpiece. In order that also workpieces of greater diameter can be machined, the machine tool otherwise being of the same dimensions, it is provided according to the invention that the holding elements can each be moved, substantially parallel to the workpiece support surface, in the direction of the workpiece, in particular in the direction of a central workpiece axis, which runs perpendicular to the workpiece support surface, for the purpose of centering and fixing the workpiece.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: May 8, 2012
    Assignee: Chiron-Werke GmbH & Co. KG
    Inventors: Dirk Prust, Hans-Henning Winkler, Torsten Winkler
  • Patent number: 5960686
    Abstract: An alignment pin has a first cylindrical portion having a first diameter equal to the outer diameter of a work piece, and axially aligned therewith is a second cylindrical portion having a second diameter equal to the inner diameter of a work piece. The pin is inserted into a tube squaring machine to align the cutting tool of the machine for squaring a work piece having outer and inner diameters equal to the first and second diameters of the pin.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: October 5, 1999
    Assignee: The E. H. Wachs Company
    Inventor: William Bonow
  • Patent number: 5797708
    Abstract: A universal drill guide (10) comprising a base (12) being a frame-like configuration having a large central opening. A pair of elongated columns (14) are provided. A structure (16) is for pivotally mounting lower ends of the elongated columns (14) parallel to opposite sides of the base (12), so that the elongated columns (14) can go from upright positions to angled positions. A cross slide (18) rides upon the elongated columns (14). A bearing spindle assembly (20) is rotatively carried centrally within the cross slide (18). A guide chuck (22) is connected to the bearing spindle assembly (20) above the base (12). An adjustable cradle (24) is affixed to the cross slide (18) to hold an electric drill (26) in a stationary position, so that the drill chuck (28) can engage with the bearing spindle assembly (20) above the cross slide (18). A facility (30) is between the cross slide (18) and the elongated columns (14), for moving the cross slide (18) up and down on the elongated columns (14).
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: August 25, 1998
    Inventor: Stjepan Bencic
  • Patent number: 5265987
    Abstract: A chucking device for clamping a workpiece for center drilling has a plurality of jaws adjustably mounted for radial movement. A tool spindle is mounted in the center of the chucking device for drilling the workpiece.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: November 30, 1993
    Inventor: O. J. Birkestrand
  • Patent number: 5092205
    Abstract: An apparatus including a cylindrical body defined by forward and rear threaded end portions to receive a respective forward and rear collar. The forward collar is cooperative with pivotally mounted wedge plates that cooperate with the forward collar to direct associated presser feet into engagement with an associated workpiece to coaxially clamp the workpiece internally of the cylindrical body. The rear collar includes an internally threaded component for cooperation with the rear threads and a radially aligned cutter blade that is directed overlying the workpiece to effect cutting of the workpiece during rotation of the rear collar relative to the workpiece while clamped within the cylindrical body.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: March 3, 1992
    Inventor: Bernard L. Gwyn
  • Patent number: 4739682
    Abstract: A tube and rod end finishing machine embodies a generally tubular portable housing within which a spindle carrying a finishing tool is axially movable. An end of the housing adjacent the tool forms one jaw of a clamshell work holder, the other jaw of which is pivoted on the housing on an axis normal to and intersecting the axis of the spindle, for movement toward and away from clamping relationship with said first mentioned jaw.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: April 26, 1988
    Inventor: Orville J. Birkestrand
  • Patent number: 4656898
    Abstract: A portable lathe device is modular in character and can be employed for flange facing, line boring or other purposes. The spindle carrying the tool means is readily axially adjustable, and the radial feed rate for a facing head tool carrier is infinitely variable and reversable.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: April 14, 1987
    Assignee: Climax Manufacturing Company
    Inventors: Christopher C. Hunt, Paul M. Strait
  • Patent number: 4486129
    Abstract: A reamer for reaming the bell of plastic pipe. A cylindrical housing includes a cylindrical cavity communicating with the lower end of the housing. A downward facing annular shoulder is formed about the circumference of the cavity. The top of the housing includes a bore having a shaft threadably engaged therein. The shaft is concentric with the cavity and includes a reamer at its lower end for reaming the bell of a pipe abutted against the shoulder.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: December 4, 1984
    Inventor: James A. Vowel