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| Number | Title | Issue Date |
| 7717436 | Continuously adjustable collet chuck A continuously adjustable collet chuck assembly comprising: a) a collet chuck body, b) an adjustment ring positioned within the collet chuck body, the adjustment ring including fixed key sized and configured to engage a keyway on a collet, and c) a locking member po... | 05/18/2010 |
| 7469907 | Mechanically actuated workpiece holder including a plastic collet A mechanically actuated workpiece holding apparatus comprising a collet at least partially composed of a plastic material. The collet may include cantilevered leaves and may be a plastic coating over a metal substrate. ... | 12/30/2008 |
| 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 |
| 6908264 | Quick change drill bit A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted to be removably connected to the drill barrel. The drill barrel includ... | 06/21/2005 |
| 6832433 | Machining apparatus and method of using same The present invention comprises a machining apparatus including a work piece holder having an adapter body with an axial bore and a translating portion located within the axial bore of the adapter body. The translating portion has a proximal end for coupling with a ... | 12/21/2004 |
| 6264208 | Chuck assembly To provide a chuck assembly which is superior in practical usability and workability in clamping and fixing a tool to a spindle without fail and with ease by lever-operation of a specialized operational jig, a taper portion is provided on at least one of ... | 07/24/2001 |
| 5947484 | Quick-change chuck device A quick release chuck device has a body member defining an axially extending bore for receipt of a tool shank. At least a portion of the bore is defined by a plurality of radially compressible and axially extending gripping segments. The gripping segments... | 09/07/1999 |
| 5810588 | Clamping device particularly useful for dental handpieces A clamping device for clamping a rodlike member to a housing, particularly a dental tool to a handpiece, includes a tapered sleeve and a tapered collet received within the tapered sleeve, both having open ends for receiving the rodlike member. A depressib... | 09/22/1998 |
| 5402694 | Rod gripping and rotating tool A rod turning tool having a first sleeve with at least one open end and having an internal thread and an external tapering with second and third sleeves surrounding the first sleeve and arranged on uphill and downhill sides of the external tapering, the s... | 04/04/1995 |
| 5372055 | Rod rotating tool A tool for rotating a rod is provided which is formed of three members. A first member is formed as a sleeve and has an internal opening size to receive the rod. This sleeve has a tapered, portion which is placed over the rod. A second member, which may a... | 12/13/1994 |
| 5275424 | Disk holding apparatus An apparatus for holding a disk with a central hole has a front rod which is received in a chuck so as to be able to move along its axis. The chuck is slidably received between the inner surface of a cylinder and the outer surface of the front rod. The fr... | 01/04/1994 |
| 5253556 | Rod rotating tool A tool for rotating a rod is provided which is formed of three sleeves. A first sleeve has an internal opening size to receive the rod and has an outwardly flared, slitted end which is placed over the rod. A second sleeve slips on to the first sleeve and ... | 10/19/1993 |
| 4940249 | Clamp device with radially split head A device for clamping a pair of workpieces together. The device includes a pair of fastener heads, each defining a segmented head which is designed to clamp a workpiece a passageway in the head, as an interior camming surface in the head is moved axially ... | 07/10/1990 |
| 4804197 | Clamp device with radially split head A clamping device for supporting a workpiece in a clamped condition. The device includes a split head fastener composed of a head having exterior and interior surfaces, and a threaded shaft attached to the head and extending substantially normally from th... | 02/14/1989 |
| 4632407 | Inside/outside chucking device For selective outside or inside chucking of a workpiece on a lathe use is made of a base unit split to provide a set of three or more holding segments capable of being either contracted for grasping the exterior of a workpiece or spread for grasping the i... | 12/30/1986 |
