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| Number | Title | Issue Date |
| 7946595 | Tool holder and measuring sensor having a tool holder A tool holder, in particular for a measuring sensor, with an interface to a spindle of a machine tool is proposed. The tool holder comprises, as seen from the interface for the spindle, a material portion which differs from the customary basic material of a tool hol... | 05/24/2011 |
| 7296803 | Chuck The present invention relates to a self-tightened reverse locking chuck, comprising: a body member, a nut, jaws, a bearing, a drive sleeve, a front sleeve, an annular drive member, a movable ratchet wheel, a reverse locking ratchet wheel, a detent lock ring, a contr... | 11/20/2007 |
| 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 |
| 7241087 | Core bit In a core bit formed with a boring blade at a front end thereof and integrally formed with a mounting portion, at a rear end portion thereof, formed with a guide portion in a cylindrical shape mounted to a chuck portion formed at a concrete drill, a ring-like seal m... | 07/10/2007 |
| 7207573 | Chuck assembly To provide an excellent chuck assembly that is superior in assembling workability, may be produced in low cost and is superior in mass-production property, in which a rotary sleeve (2) provided on a body (1) is rotated, jaws (4) engaged with rot... | 04/24/2007 |
| 7044478 | Coaxial mounting seat for the shank of a toolholder A mounting seat (1) for machine-tools allowing coaxial engagement of the shank (2c) of a toolholder member (2) includes internally a cylindrical bush (3) supporting a plurality of ball bearings (4i) arranged without p... | 05/16/2006 |
| 7036230 | Cutting tool adopted for two handed operation A pneumatic cutting tool has an extended body length so it can be operated by a pair of hands to facilitate the operation and holding thereof The body length can be increased using an extension cylinder and extension kit. The tool also has a handle mounted onto the ... | 05/02/2006 |
| 7018146 | Chuck A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bo... | 03/28/2006 |
| 6883809 | Drill chuck A drill chuck has according to the invention a chuck body centered on and rotatable about an axis and having a rear end formed with an axially forwardly facing shoulder, a plurality of jaws radially displaceable in the body between a closely spaced tool-gripping pos... | 04/26/2005 |
| 6860488 | Drill chuck with front-end shield A drill chuck has a chuck body rotatable about a chuck axis and having a rear end adapted to fit with a drive spindle and a front end formed with a tool recess. A plurality of jaws angularly spaced on the body about the axis and exposed in the tool recess are radial... | 03/01/2005 |
| 6769846 | Coupling device A coupling device for engaging an exchangeable tool support (7) for corotation with a shaft (2) of a motor (1), with the shaft (2) mounting at is driven end a hollow shaft projection (3) for receiving the tool support (7). A... | 08/03/2004 |
| 6729627 | Capped collet and collet cap The present invention provides a capped collet and a cap attached to the collet, which are capable of efficiently supplying a cooling fluid to a tool according to the type of the tool held therein, and of performing satisfactory cooling. The capped collet comprises:... | 05/04/2004 |
| 6726221 | Dead length collet chuck assembly A collet chuck assembly includes a mount, a selectively-axially-movable collet closing sleeve, and a multiple-segment collet head. The collet head includes two axially-spaced outer circumferential cam surfaces that engage two axially-spaced inner circumferential cam... | 04/27/2004 |
| 6595527 | Chip-clearing drill chuck A drill has a drive-unit housing having an end wall, a drive-unit spindle projecting along an axis from the wall, and a chuck body fixed to the spindle, formed with an axially forwardly open tool recess, and formed with a plurality of angled guide passage... | 07/22/2003 |
| 6572119 | Axial chuck A clamping sleeve/tensioning device comprises a clamping sleeve that is positioned inside a conical centering opening of a housing body. A chucking mechanism with rotational body is used to tighten or release the clamping sleeve. The rotational body is pr... | 06/03/2003 |
| 6547013 | Screw driving tool A screw driving tool including an axially displaceable, drive spindle (5) located in the housing, a bit holder (6) having a shank (7) which releasably connects the bit holder (6) with the drive spindle (5), an axially adjustable depth stop (9) surrounding... | 04/15/2003 |
| 6517295 | Power drill housing and chuck rotation A power drill housing and chuck rotation indicator arrangement in which the power drill housing is formed of two symmetrical shells abutted against each other, the shells each having a front end terminating in a chuck guard defining a respective semi-circ... | 02/11/2003 |
| 6517088 | Lockable drill chuck A lockable drill chuck has a body centered on and rotatable about an axis and formed with a plurality of angled guides opening axially forward at a front chuck end, respective jaws axially and radially displaceable in the guides and each formed with a row... | 02/11/2003 |
| 6321855 | Anti-vibration adaptor Power drivers are commonly used in production to tighten fasteners such as nuts and bolts. The socket which engages the fastener is normally coupled to the drive shaft of the power driver by a square male end on the drive shaft and a complementary square ... | 11/27/2001 |
| 6299179 | Fluid actuated chuck This invention discloses a chuck apparatus actuated by a fluid including a body, a plurality of master jaws slidably mounted in the body, a fluid driven piston mounted for axial motion relative to the body along an axis, the piston comprising a plurality ... | 10/09/2001 |
| 6264408 | Pneumatic tool kit A pneumatic tool kit including a main body, a threaded plug, a connecting seat, at least one grinding member, a protective cover, a saw disk seat, an adjustment seat, at least one edge-milling tool, a stopper board and at least one drilling/milling tool. ... | 07/24/2001 |
| 6186712 | Tool holder A tool holder includes a holder body having a first section to be attached to a machine and a second section coaxially exteding from the first section, a ring in which part of the holder body is received, and an assembling device for removably assembling ... | 02/13/2001 |
| 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 |
| 6123157 | Anti-vibration adaptor Power drivers are commonly used in production to tighten fasteners such as nuts and bolts. The socket which engages the fastener is normally coupled to the drive shaft of the power driver by a square male end on the drive shaft and a complementary square ... | 09/26/2000 |
| 6073940 | Sealed chuck assembly A sealed chuck assembly having a hollow cylindrical chuck body including a radially disposed front wall and a plurality of master jaws supported on the chuck body to move radially within openings in the front wall and relative to the chuck body in respons... | 06/13/2000 |
| 6003416 | Tool holding device A tool holding device comprising a tool pot in which an interchangeable tool is releasably fitted and removed, a ball holder firmly fitted in the tool pot and having a guide surface around which a shank portion of the tool is releasably fitted for radiall... | 12/21/1999 |
| 5996452 | Chuck device for power tool A chuck device for a power tool includes a follower rotatably and slidably received in a tube and coupled to and driven by a power tool and having a hole for receiving a driving stem. One or more balls are slidably received in the follower and may be forc... | 12/07/1999 |
| 5997010 | Collet for a machine-tool chuck A collet is provided to grip a workpiece with a uniformly distributed gripping force. The collet includes a plurlity of circumferentally spaced-apart radial slots extending partly through the collet and at least one opening extending radially all the way ... | 12/07/1999 |
| 5984595 | Tool holder A tool holder having a holder body, a collet, an intermediate rod, a clamp bolt and a pull stud. The collet and the intermediate rod are integrally connected by screwing. A spacer is mounted to the front end of the holder body and has an opening hole with... | 11/16/1999 |
| 5971681 | Drawbar guide ring with drive keys A guard ring having a center bore mounts on a face of a spindle of a machine tool having a taper socket drive, and a bore for receiving and driving a tool holder. A drive between the guard ring and the tool holder engages before a power drawbar of the mac... | 10/26/1999 |
| 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 |
| 5909882 | Pneumatic driven automatic chuck A pneumatically driven chuck for clamping and unclamping a tool holder of a machine tool, especially an electric discharge machine, said chuck including a mechanical clamp for clamping said tool holder, a first air chamber for receiving opening air for re... | 06/08/1999 |
| 5876158 | Drive collet assembly for a tap with overdrive protection A drive collet assembly for an internal thread producing tap. The collet includes a collar that is attached to the stem of the tap using set screws. The collar is received into a recess of the body portion of a drive collet and retained therein using a sp... | 03/02/1999 |
| 5846036 | Protective cover A protective cover comprising a tool covering portion and a pressure contact tube portion. The pressure contact tube portion is formed on its periphery with a multiplicity of resilient pieces. When the pressure contact tube portion is fitted over a front ... | 12/08/1998 |
| 5816585 | Chuck element for machine tools with rotating jaw chuck A chuck system for machine tools with a rotating jaw chuck has clamping jaws of the jaw chuck which can be radially adjusted relative to an axis of rotation. The clamping jaws are displaceably mounted in a bearer connected with a drive shaft, and in which... | 10/06/1998 |
| 5797605 | Workholding apparatus Workholding apparatus for mounting a workpiece (6) on a machine tool, the apparatus comprising a diaphragm chuck portion (2) and a tailstock portion (4). The chuck (2) includes a backing ring (70) with face portion (74) attached to the diaphragm (44) with... | 08/25/1998 |
| 5732956 | Non impact keyless chuck A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the... | 03/31/1998 |
| 5716056 | Internally squeezing sealable collet Collet includes a housing having a wall with external and internal surfaces, having opposing ends, and having an internal hollow portion with at least one opening; and a flap internal of the opposing ends of the housing in the wall and over part of the in... | 02/10/1998 |
| 5700019 | Chucking ring The chucking ring of this invention finds its principal utility in the clamping of top jaws used in a machine tool, such as a lathe, having a chuck and equipped to machine successive workpieces. The chucking ring includes a flanged head on one end of a tu... | 12/23/1997 |
| 5688163 | Vibration dampening grinding cup and grinding cup holder for handheld grinding machines This invention relates to a vibration dampening grinding cup for handheld grinding machines for the grinding of hard metal buttons on button bits, comprising a grinding head and a shaft made with a common axial channel for cooling medium, which distinguis... | 11/18/1997 |
