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| Number | Title | Issue Date |
| 7357607 | Tool holder A tool holder is provided that is configured to deliver coolant to a work piece and/or a cutting tool. The tool holder includes a tool mounting aperture for receiving a shank of a cutting tool, and an axially extending central passage for receiving coolant deliver t... | 04/15/2008 |
| 7331585 | Machining adapter having a collet and positive axial stop An adapter for holding a workpiece to be machined in an accurately located axial position can include a main sleeve having an interior wall defining a passage extending therethrough with at least one inner surface angled inwardly toward a centerline of the passage, ... | 02/19/2008 |
| 7328903 | Chuck A chuck has an attachment device for attaching the chuck to a machine spindle and a collet with clamping jaws defining an insertion opening at an end of the chuck opposite the attachment device. A sliding sleeve surrounds the clamping jaws and is axially moveable in... | 02/12/2008 |
| 7271364 | Laser welding fixture and method A laser welding fixture for holding a workpiece includes a base, a processing head adapted to magnetically couple to the base, and a collet. The processing head has at least one collet holder assembly and at least one stop. The collet is removably coupled to the hol... | 09/18/2007 |
| 7243923 | Centering drill chuck A drill includes a chuck which has a body member including a bore to receive a tool. Jaw members frictionally engage the tool to retain the tool in the chuck. A member is associated with the jaw members and the body to move the jaw members between clamping and non-c... | 07/17/2007 |
| 6994000 | Fixture and locator device for supporting a rotatable member There is provided a locator device and an associated fixture and method for supporting a rotatable member. The locator device has a base and a plurality of flanges extending from the base in an axial direction and arranged circumferentially to define an aperture for... | 02/07/2006 |
| 6966561 | Spacer element for a collet chuck and collet chuck Collet chucks (20) comprise at least two tensioning segments (21). Adjacent tensioning segments are connected to each other by way of elastic spacer elements (30). The tensioning segments (21) have back-cuts (22), whilst the spacer... | 11/22/2005 |
| 6908086 | Chuck The chuck (10) is comprised of a chuck body (11) having an inner cone surface and a grip head (12) with a corresponding outer cone surface. The grip head (12) is subdivided into individual clamping jaws (21) by several seperating s... | 06/21/2005 |
| 6901646 | Universal snap-fit spacer A universal snap-fit system for interconnecting multiple circuit boards in a stacked relationship is provided. The system allows circuit boards to be stacked with a minimum of assembly time. In addition, the system allows circuit boards of varying thicknesses to be ... | 06/07/2005 |
| 6746023 | Collet The present invention provides a collet capable of efficiently supplying a cooling fluid such as a cutting fluid to a tool and thereby realizing satisfactory cooling by adjusting the flow velocity of the cooling fluid according to the diameter of the tool held by th... | 06/08/2004 |
| 6641145 | Miniature drill chuck A miniature drill chuck has a drill chuck housing and a thrust member positioned in the interior for moving clamping jaws into their clamping position during a threading movement of the drill chuck housing onto a machine spindle. The thrust member is long... | 11/04/2003 |
| 6575477 | Quick change true length collet chuck assembly A true length collet chuck assembly is adapted to receive and actuate a quick change, segmented collet having a flange extending radially outwardly from the outer surface of the collet adjacent a rear face of the collet. The collet chuck assembly comprise... | 06/10/2003 |
| 6520508 | Keyless router chuck A tool receiver or chuck is provided which may receive a cutting tool, such as a router bit or the like, therewithin and non-rotatably retain the tool relative to a rotary driving device. The tool receiver includes a plurality of blades substantially enca... | 02/18/2003 |
| 6152643 | Coupling for inserting a soaking bar into a blast furnace tap hole A coupling device for use in inserting a soaking bar into a clay plugged blast furnace tap hole with a rotary percussion tool, having a first axial aperture at a first end adapted to be fitted onto a driving post of a rotary percussion tool, and having a ... | 11/28/2000 |
| 5911421 | Sealed collet having improved radial flexibility for facilitating removal from a locknut A sealed collet having improved radial flexibility is provided for facilitating removal from a locknut of a chuck assembly. The sealed collet includes a collet body formed from a tubular configuration of elongated gripping fingers separated by elongated s... | 06/15/1999 |
| 5865073 | Torque machines A torque machine, for making or breaking screw-threaded joints between lengths of pipe, includes a rotatable head having an aperture into which a length of pipe is introduced, the rotatable head including a number of tongs which are spaced apart around th... | 02/02/1999 |
| 5820136 | Quick release integrated collet and chuck device A quick release chuck device includes a body member having a frustoconical chamber defined therein with a collet device operably housed in the chamber. At least two longitudinally extending members are disposed equally spaced around the circumference of t... | 10/13/1998 |
| 5794949 | Collet A collet for retaining a work piece comprises a plurality of wedge segments, and each of the wedge segments has inner and outer surfaces which, when the segments are assembled, form a collet having a cylindrical bore and a frustonconical outer surface, an... | 08/18/1998 |
| 5716057 | Tool holding device incorporating a solid film lubricant An improved tool holding device has at least one tool engaging member for selectively engaging a tool during operation, such as the jaw blades of a chuck device and gripping jaw blades of a collet device. The tool holding device includes an actuating mech... | 02/10/1998 |
| 5641168 | Machine tool collet with axial stop The machine tool collet has a plurality of gripping jaws held in a longitudinally and angularly spaced relation about a longitudinal centerline axis through the collet. The gripping jaws have an inner face parallel to the centerline axis and the plurality... | 06/24/1997 |
| 5636851 | Tapping collet A tapping collet is actuated by engagement with a mating surface of a collet holder for holding a tap having a round shank portion and a square shank portion. The collet has a plurality of independent gripping jaws circumferentially disposed at essentiall... | 06/10/1997 |
| 5511801 | Integrated collet and chuck device An integrated and collet and chuck device includes a body member configured to be non-movably fixed to a drive spindle of a driving tool. An outer sleeve member is disposed about a portion of the body member and is rotatable relative to the body member. T... | 04/30/1996 |
| 5405155 | Sealing collet A sealing collet is provided having a plurality of independent gripping jaws longitudinally disposed about a common centerline axis. The gripping jaws have exposed inner and outer faces. A resilient material is disposed between the gripping jaws and holds... | 04/11/1995 |
| 5382030 | Collet and method for optimizing gripping action thereof The present invention relates to a method and process for manufacturing an improved machine tool collet. The invention further relates to an improved machine tool collet having design parameters optimized to maximize the gripping strength of the collet. T... | 01/17/1995 |
| 5368421 | Tool holder and a tool therefor The tool holder is arranged to receive a tapered tool shank. The collet has a shank engaging surface which, in use, lies substantially on the surface of a notional cone which tapers in the direction of withdrawal of the shank from the tool holder.... | 11/29/1994 |
| 5337521 | Valve grinder Valve grinder comprising a grinding wheel mounted on a bench, said bench also having a surface for supporting a valve stem support stand mounted a spaced distance from said grinding wheel, said valve stem support stand comprising a pair of V-blocks and va... | 08/16/1994 |
| 5324050 | Sealing collet A sealing collet is provided having a plurality of independent gripping jaws longitudinally disposed about a common centerline axis. The gripping jaws have exposed inner and outer faces. A resilient material is disposed between the gripping jaws and holds... | 06/28/1994 |
| 5314198 | Collet chuck apparatus The center of a collet having a plurality of individual gripper members resiliently spaced apart in an annular array and operated on by a frustoconical surface can be adjusted by displacing some of the gripper members more than others of the gripper membe... | 05/24/1994 |
| 5193825 | Apparatus for adjusting the center of a collet The center of a collet having a plurality of individual gripper members resiliently spaced apart in an annular array and operated on by a frustoconical surface can be adjusted by displacing some of the gripper members more than others of the gripper membe... | 03/16/1993 |
| 5160150 | Chuck A chuck for a machine tool is provided and includes a chuck body that is provided with a frusto-conical opening that has guide surfaces. A clamping head is adapted to be received in the opening of the chuck body, with the clamping head having an axially e... | 11/03/1992 |
| 5029881 | Jaw teeth with elastomeric connector A chuck jaw assembly for use in an apparatus for setting fasteners is disclosed having an elastomeric connector, or retaining member, that holds the jaw teeth of the chuck jaw assembly in the proper axial and circumferentially spaced positions with respec... | 07/09/1991 |
| 4999002 | High speed chuck apparatus A chuck assembly for high speed operations is provided. The workpiece gripping and releasing functions of the chuck are carried out pneumatically by a nonrotating air tube assembly extending through a bore in a machine tool to which the rotating chuck is ... | 03/12/1991 |
| 4980963 | Tool changing apparatus An apparatus for fixing and changing tools on movable working machines, e.g. robot arms, comprising a retaining element (A) with a fixing trunnion (2) fixed to the working machine part and on which are formed retaining groove (4) at right angles to its ax... | 01/01/1991 |
| 4946179 | Self-gradually locking chuck The invention is a self-gradually locking chuck for drills and similar devices. It is particularly suitable for portable drills in surgical use. The chuck has a cylindrical sleeve that can be fixed axially to the shaft of a drill and predominantly taperin... | 08/07/1990 |
| 4880246 | Self-tightening drill chuck A self-tightening drill chuck has a chuck body adapted to be mounted on a drill spindle for rotation about an axis and formed with substantially cylindrical front and a rear outer surfaces both centered on the axis and axially offset from each other and w... | 11/14/1989 |
| 4867463 | Quick release collet A pipe holding collet is provided with an insert assembly that can be readily and quickly changed without the use of tools so as to adapt the collet to hold tubes of different sizes. The insert assembly is formed of a number of identical longitudinally se... | 09/19/1989 |
| 4858938 | Two piece collet with interlocking collet segments A collet head for securing to a collet body for machine tools has a plurality of spaced segments arranged in a circular configuration having spaced slots between each segment. Each segment has a front face, a rear face, an inside work gripping surface, an... | 08/22/1989 |
| 4856797 | Chuck for gripping a workpiece A chuck comprising a chuck body having guide surfaces, preferably in the form of the surface area of a hollow cone, is provided. Chuck jaws having a correspondingly conical guide surface rest against the surface of the chuck body and are secured to one an... | 08/15/1989 |
| 4836091 | Hydraulic work support A spring actuated plunger work support seeks variable tolerance level of workpiece and is hydraulically locked in place to provide resistance to workpiece deflection imposed by processing loads. A collet with independent steel segments in a molded rubber ... | 06/06/1989 |
| 4821401 | Quick change collet and removal tool A workpiece holding collet is provided with at least one tool receiving aperture located in each collet segment. A changing tool having mating fingers is inserted into the collet, when it is in its compressed condition in a chuck. The chuck is then opened... | 04/18/1989 |
