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| Number | Title | Issue Date |
| 7367761 | Tool, tool holder and machine tool A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying elect... | 05/06/2008 |
| 7252466 | Tool position referencing for CNC machines A CNC machining center has a table-mounted referencing device having two pedestals, each separately engageable by a tool in a Z-axis drive tool holder to establish a zero reference for vertical machining operations on a work-piece mounted on the table. The first of ... | 08/07/2007 |
| 7217071 | Method for testing the fit or imbalance of a tool In the method, a tool is tested for an aligning fit or an imbalance in a tool spindle. The tool spindle is set into rotation. A light beam is used to check whether the tool wobbles. The tool spindle and the light beam are moved relative to one another until the ligh... | 05/15/2007 |
| 7210878 | Feed adaptation core drill A process for controlling and a core drilling machine (1) having an electrical motor (2) for rotational drive of a core drill bit (3) having cutting edges (5) oriented axial to a work piece (4), a feeding means (6) for gener... | 05/01/2007 |
| 7189033 | Apparatus and methods for thrust sensing valves Apparatus and methods for thrust sensing valves are disclosed. In one embodiment, an apparatus includes a housing including an input port and an output port and further having a mounting portion adapted to be coupled to a manufacturing tool. A supply member is opera... | 03/13/2007 |
| 7155826 | Motor spindle with improved machining precision and method for operating one such motor spindle A motor spindle includes a spindle shaft for receiving a tool. The spindle shaft is accommodated in the housing of the motor spindle in a fixed bearing and a loose bearing. The received tool enters into contact with the machined workpiece in a tool interface when th... | 01/02/2007 |
| 6514016 | Stuck tool detector and related method There is provided an apparatus and method for detecting stuck tools in automated machining operations. When a machining operation on a workpiece is finished, the tools are retracted from the workpiece. Prior to moving the workpiece to another machining op... | 02/04/2003 |
| 6474378 | Plunge router having electronic depth adjustment A plunge-type router is disclosed which has a base and a head assembly that is vertically adjustable by an adjusting mechanism. The plunge router includes an electronic control system with a digital display and control functionality that enables the route... | 11/05/2002 |
| 6450859 | Method and apparatus for abrading a substrate An apparatus for abrading a substrate including a moveable abrading tool having a bur for abrading the substrate, a stage for supporting the substrate, and a height sensing device in communication with the abrading tool to determine a vertical position of... | 09/17/2002 |
| 5788435 | Automated diamond cutter apparatus First and second motors are provided for moving a workpiece support in an up and down direction and and for rotation about an axis. Third, fourth and fifth motors are provided for moving a rotating cutter in a lateral direction, for rotating the cutter ab... | 08/04/1998 |
| 5119759 | Apparatus for solder nozzle height sensing The method and apparatus of the present invention permit the accurate sensing of the height of a solder nozzle above a circuit board during operation of the solder nozzle. A non-contact limit switch, which provides an indication of the presence of a plana... | 06/09/1992 |
| 4944643 | Torque thrust and surface sensing device A tooling device for numerically controlled machining centers having programmable torque, thrust and surface sensing utilizing a telescopic tool holder comprising an adapter to be retained in the taper of the machine spindle and a control rod in the spind... | 07/31/1990 |
| 4854786 | Computer controlled automatic shift drill The trust exerted on a drill bit is sensed and employed to determine the speed at which the bit is driven. A controller for the drill compares the thrust to a predetermined threshold value and in response to the comparison emits a control signal which shi... | 08/08/1989 |
| 4772161 | Profile working machine A profile working machine includes a support portion, a working portion, and a drive and control system. The machine also includes displacement sensors for detecting the present relative displacements between the support portion and working portion, a loa... | 09/20/1988 |
| 4744241 | Method and device for detecting a wear limit or break in the cutting edge of a tool A method and arrangement for detecting a wear limit or break in a cutting edge of a machine tool. At least two conductor paths are embedded in the cutting material forming the cutting edge, one of the conductor paths being part of a closed circuit while t... | 05/17/1988 |
| 4666352 | Profile working machine A profile working machine is equipped with a support for holding a work in place, a working tool for machining the work, and drive and control systems for controlling the relative displacements between the support and the working tool. The profile working... | 05/19/1987 |
| 4664571 | Tool abnormality detector A tool abnormality detector for use with a machine tool for detecting any abnormality of a tool mounted on the tool mounting shaft. When the tool mounting shaft is in a correct position with respect to the tubular body secured to the spindle, the air pres... | 05/12/1987 |
| 4579487 | Tool adapter A tool adapter for use in drilling, tapping and milling operations with the spindle of a machining center having a collet type tool holder which holds the tool which upon advancement into the work piece at a programmed feed rate to a programmed depth rate... | 04/01/1986 |
| 4451187 | Machine tool A machine tool comprising a rotary drive unit rotating a tool or workpiece, a load torque detecting device disposed between the rotary drive unit and the tool or workpiece rotated thereby, a linear drive unit moving one of the tool and the workpiece towar... | 05/29/1984 |
| 4337558 | Tube end finishing device A device for production rate finishing and deburring of the ends of lengths of pipe with minimum loss of time, utilizing the finishing tool as a sensor to control the feed rate, whereby the end finishing and deburring is accomplished in a single pass and ... | 07/06/1982 |
| 4260305 | Device for preventing tool breakage in tool machines An accessory for tool machines is provided comprising a tool holder isolatedly carried on bar springs to effect a floating mount. The holder yields in response to selective load stress during cutting and is restricted to a linear force path to relieve str... | 04/07/1981 |
