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| Number | Title | Issue Date |
| 7914010 | Hydraulic expansion chuck for chucking a tool, such as a boring tool, milling cutter, or other cutting tool A hydraulic expansion chuck for chucking a tool such as a boring tool, a milling cutter, or other cutting tool. The hydraulic expansion chuck has an expansion bushing which can be deformed radially under the action of a pressure fluid contained in a pressure chamber... | 03/29/2011 |
| 7331583 | Workpiece holder with a multi-piece bladder A workpiece holding apparatus comprises a body, a bladder carried by the body, and a sleeve that is carried by the bladder. A fluid chamber is at least partially defined by the body and the bladder for containing a fluid therein. The bladder comprises at least one f... | 02/19/2008 |
| 7144207 | Fluid chuck device and method In a valve disposed between a fluid supply and a socket of a chuck and configured to regulate the flow of the fluid to the socket. There is a seal screw for modulating a preload tension. This seal screw has a first sealing surface. The valve further includes a secon... | 12/05/2006 |
| 6997448 | Device for the detachable mounting of workpieces on machining devices A device for holding workpieces in a releasable manner is proposed, comprising a mounting plate (2) with a clamping pin (3) for mounting a workpiece and an end plate (5) for connecting in a supporting manner to a machining apparatus for machinin... | 02/14/2006 |
| 6938903 | Tool holder for a tool, especially a boring, milling or grinding tool, which can be rotated about a rotational axis The invention relates to a tool holder for receiving a tool, especially a boring, milling, or grinding tool, which can be rotated about a rotational axis and which comprises a clamping shank. In a preferred form of embodiment, said clamping shank comprises a receivi... | 09/06/2005 |
| 6642469 | Electrode clamping system for sink-type electrical discharge machines An electrode clamping system for an EDM-sinking system provides a two-sided dielectric fluid supply to a clamped electrode by placing supply channels in both the fixed and movable parts of the electrode clamping holder. An automatic control circuit contro... | 11/04/2003 |
| 6641128 | Clamping apparatus with a clamping chuck and a work piece carrier releasably connectable thereto In a clamping apparatus for fixing a work piece carrier with a clamping pin in a clamping chuck, the clamping chuck is provided with a central opening for receiving the clamping pin and with a clamping mechanism firmly keeping the clamping pin in the cent... | 11/04/2003 |
| 6273434 | Capless quick-grip cylinder The present invention concerns a method for manufacture and assembly as well as a capless quick-grip cylinder manufactured by this method with a feed nipple for clamping a carrier plate, also called a pallet, which on a machine tool serves to fix work pie... | 08/14/2001 |
| 6170836 | Clamping device for securing a draw-in nipple to a clamping plate The invention concerns a clamping device for securing a draw-in nipple (12) to a clamping plate, having a receptacle (11) into which the draw-in nipple (12) is insertable, and having a clamping mechanism in order to immobilize the draw-in nipple (12) in t... | 01/09/2001 |
| 6160236 | Clamping system A clamping system includes a workpiece machining head (1) having a coupling member (40), a mating coupling piece (90) and a drawbolt (30), a pressure-medium actuated clamping device (10, 15, 17, 19, 20) for the drawbolt (30) being provided on the workpiec... | 12/12/2000 |
| 6074140 | Quick-release chuck assembly A handheld rotary power unit includes a housing with a handle and a distal end portion, a motor shaft extending through the distal end portion of the housing, and a quick-release chuck assembly connected to the motor shaft. An actuator assembly is provide... | 06/13/2000 |
| 5906378 | Coupling adapter A coupling adapter (1) for positioning a tool (90) in a particular given position with high repetitive precision on a chuck (80) that can be activated by a medium for a machine tool. The chuck (80) is equipped with elements (52, 54, 82, 55, 57, 58) of a f... | 05/25/1999 |
| 5322301 | Chucking tool with a wedging action for testing machines A clamping or chucking tool for clamping a test sample in a testing machine has a clamping housing for applying a wedging action to the sample with the aid of one or two clamping jaws that are activated by an operating member that is inserted into the cla... | 06/21/1994 |
| 5255928 | Adjustable fastening device The invention relates to an adjustable fastening device e.g. for an axially-shaped, tubular, flat or spherical tool or working piece or machine part or a like of a desired shape. The device includes: a body section (1), a clamping means (2), mounted withi... | 10/26/1993 |
| 5174585 | Adjustable fastening device The invention relates to an adjustable fastening device e.g. for an axially-shaped, tubular, flat or spherical tool or working piece or machine part or a like of a desired shape. The device includes: a body section (1), a clamping means (2), mounted withi... | 12/29/1992 |
| 5088746 | Zero-deflection support chuck A zero-deflection support chuck is provided for gripping a load shaft which includes a stable support body having a bore, a gripping sleeve closely embracing the load shaft and a pressure sleeve within the bore and surrounding the gripping sleeve. The out... | 02/18/1992 |
| 5039261 | Spindle device for use in machine tool A spindle device providing a hydraulic system for moving a drawbar in a tool holding direction. The drawbar extends through a spindle shaft and is slidably provided therein. A piston is fixedly connected to the drawbar, and a pressure chamber is defined b... | 08/13/1991 |
| 5018916 | Actuating arrangement for a tool or workpiece clamping device in a machine tool spindle The actuating arrangement for a tool clamping device (1) has a clamping bar (3) which is axially displaceable in a clamping direction in a machine tool spindle (2) under the effect of a spring arrangement (11) and a firsst wedge transmission assembly (9) ... | 05/28/1991 |
| 4877094 | Rock drilling machine, especially for underground mining A rock drilling machine, particularly for underground excavations comprises a drilling carriage, and a rotary drilling drive arranged in a longitudinally displaceable manner on the drilling carriage, the rotary drilling drive having a drive shaft, an adap... | 10/31/1989 |
| 4855558 | Clamping device for a tool at a machine tool, particularly at a die sinking electric discharge machine A clamping device for a tool at a machine tool, particularly a die sinking electric discharge machine equipped with a chuck having two pairs of rails projecting from the underside of the chuck and arranged in a rectangular cross. The rails are provided wi... | 08/08/1989 |
| 4854395 | Hydraulic kelly bar chuck In a rotary drill having a driven rotary table with an axially directed passage through its center of rotation defined by a hollow spindle, a kelly bar extending through the passage, and a chuck mounted on the spindle, plungers are mounted in cylinders in... | 08/08/1989 |
| 4844489 | Chuck apparatus and method A chuck apparatus including a plurality of radially movable jaws for gripping a drill rod, each jaw being moved radially by an axially movable bowl, each jaw and the corresponding bowl surfaces are provided with two sets of camming surfaces, the first set... | 07/04/1989 |
| 4826230 | Tool-gripping device for remote manipulators, robots or like assemblies A tool-gripping device for remote manipulators, industrial robots and like assemblies which includes a sleeve provided with a movable locking element having an opening therethrough which is traversed by a stepped pin member associated with each tool and w... | 05/02/1989 |
| 4776199 | Workpiece clamping devices in forging manipulators A forging manipulator has two pairs of workpiece gripping arms which operate in respective mutually perpendicular planes. Each pair of arms is operable by a respective independent actuating mechanism, so that the respective pairs of arms can accommodate w... | 10/11/1988 |
| 4745674 | Tool holder in machining center A tool holder in a machining center comprising a basic tool holder provided with a tapered fitting hole formed on the nose portion and a small tool having its tapered fitting portion fitted detachably in the tapered fitting hole, wherein a plurality of gu... | 05/24/1988 |
| 4745831 | Setting tool for screwing-in threaded rods A setting tool for screwing a threaded rod into a receiving material includes a work driver formed by a sleeve-like member. A retainer part is secured within one end of the sleeve-like member for holding the threaded rod while it is inserted. The end of t... | 05/24/1988 |
| 4676142 | Adapter with modular components for a robot end-of-arm interchangeable tooling system An improved adapter is provided for an interchangeable robot end-of-arm tooling system. The quick change adapter is made from modular components including a body, an interface package, and a robot adapter plate with locator system.... | 06/30/1987 |
| 4610075 | Tool holder for industrial robots A tool holder for an industrial robot intended to permit a programmed automatic replacement of tools. The holder and the tool are formed with connecting elements adapted to each other. The holder includes a cylinder housing, in which two pistons, intercon... | 09/09/1986 |
| 4597699 | Quick-connect mechanism A quick-connect and quick-disconnect mechanism includes a male member which may be received in a female socket member. Cam means is journaled in an eccentric cam follower surface in the socket and is capable of rotation about a second axis displaced from ... | 07/01/1986 |
| 4576254 | Hydraulically actuated slip assembly A hydraulically operated slip assembly, connectible to a well head or well pipe handling machine and useful to intermittently grip pipe being run into or pulled from the well. The slip assembly has upper and lower plates with passages for pipe. Wedges, ca... | 03/18/1986 |
| 4572526 | Device for clamping tools A device for clamping tools, such as a shank-end mill, comprises an adjusting nut having a bore for receiving and actuating an adapter sleeve for mechanical clamping of the tool. The adjusting nut has at least one pressure medium chamber accommodating a p... | 02/25/1986 |
| 4485653 | Hydraulic chuck for threaded tube A threaded coupling chuck device for use with a male threaded tube, including a body, a shaft for rotation, a sleeve and adaptor, nose cone, seal means, port means and a valve. The body is centered about an axis and has a sleeve rotably mounted inside the... | 12/04/1984 |
| 4386544 | Device for rotatably gripping a cylindrical piece A sleeve grip for a pipe is radially expandable by axial compression from a bolt-nut system. One of the elements 8 of the bolt-nut system 13 is connected to a bidirectional drive motor 23 inducing rotation in the cylindrical pipe 2 and the other element 2... | 06/07/1983 |
| 4304513 | Milling machine including improved tool knock-out means A milling machine includes a C-shaped frame, tool support member movable in a vertical direction, a saddle member movable in a transverse direction, a work table movable in a longitudinal direction, a tool drive unit, a tool knock-out assembly and two opp... | 12/08/1981 |
| 4222214 | Chucking apparatus Chucking apparatus is disclosed for engaging articles such as screw-type caps for applying the caps to containers. Caps are bottom or center fed to a fluid operated chuck device which grips the caps and screws them onto a container. The chuck device compr... | 09/16/1980 |
| 4203222 | Automatic chuck for drill A surgical tool has a pneumatically driven rotor motor, a source of air under pressure to drive the motor, an output system for receiving rotation from the motor and transmitting it to a bur and a securing system for securing the bur to the output system.... | 05/20/1980 |
| 4189162 | Hydraulic chuck A hydraulic chuck having a piston means with an axially centered passage, the first end of which has a tube seating means associated therewith for engaging a tube. Collet means are provided and located at the first end of the piston means for engagement o... | 02/19/1980 |
| 4141263 | Device for the centered clamping of annular workpieces A device for the centered clamping, in a turning machine, of an annular workpiece or workpiece stack formed of a plurality of annular workpieces, has a centering cylinder; an arrangement for axially displacing the centering cylinder; first and second axia... | 02/27/1979 |
| 4116453 | Multi-part pressure chuck A holding chuck for parts to be machined utilizing hydrostatic forces for the gripping pressure but including a two-stage gripping action and a multiple area arrangement wherein a combination of a mechanical gripping and a fine hydrostatic pressure lock-u... | 09/26/1978 |
| 3952384 | Pipe jacks The invention provides a pipe jack for pulling a pipe lengthwise through the ground without the necessity of excavating the ground to create a trench first, the jack including a number of hydraulic rams coupled to a set of jaws, and the jaws being hydraul... | 04/27/1976 |
