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| Number | Title | Issue Date |
| 6913429 | Tooless bit retaining assembly A bit retaining assembly for retaining a bit in a rotary tool, in particular a router such as a hand-held router, a table-mounted router, a pocket cutter, a laminate trimmer, a rotary cutout tool, or the like employs a planetary gear system for multiplying the torqu... | 07/05/2005 |
| 6497765 | Multi piece swivel chuck for holding conical shaped work An improved chuck for supporting elongated work pieces having conical end portions, such as single crystal ingots used to fabricate semiconductor wafers, while such. The chuck is typically used in a lathe for positioning and allowing rotation of the work ... | 12/24/2002 |
| 6290241 | Fixed-length collet chuck assembly A fixed length collet chuck assembly for holding a workpiece in which the collet only translates radially and not axially is provided. The fixed length collet chuck has a longitudinal, central axis and includes a chuck body assembly and a collet. As a dra... | 09/18/2001 |
| 5069096 | Advanced spider fixture A spider fixture provides a rotatable connection between a workpiece and a lathe. The spider fixture has a tapered shaft adapted to be inserted and secured to the tail stock of the lathe and rotatably mounted to the remainder of the spider. In addition th... | 12/03/1991 |
| 5060958 | Power drive and transmission unit for self centering clamps and chucks A power drive and transmission unit for self centering clamps and chucks has a housing with a cylindrical bore and a piston which is rotatably mounted therein and is acted upon by two linear operating, piston cylinder drives to obtain rotation of the rota... | 10/29/1991 |
| 4852434 | Machine tool with a sliding screw drive A machine tool having a work spindle with an electrically actuated clamping unit including a three-phase motor with a stationary stator. The motor is supplied with electricity from a control unit operating with frequency conversion, and the control unit i... | 08/01/1989 |
| 4758006 | Apparatus for operating the clamping jaws of a chuck An apparatus for operating the clamping jaws of a chuck. The clamping jaws are coupled with an adjustment member which, for producing an adjustment movement is in driving connection with an adjusting drive mechanism. The latter is formed by a two-part rot... | 07/19/1988 |
| 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 |
| 4141564 | Power operated chuck A power operated chuck in which an actuator, such as a fluid pressure actuator, causes clamping or unclamping movement of the jaws in dependence on the position of a control member, in which the power for operation of the actuator is derived from rotation... | 02/27/1979 |
| 4032161 | Power operated chuck A power operated chuck in which an actuator, such as a fluid pressure actuator, causes clamping or unclamping movements of the jaws in dependence on the position of a control member, in which the power for operation of the actuator is derived from rotatio... | 06/28/1977 |
