Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8057137 | Aligning a machine tool with a target location on a structure An apparatus for aligning a machine tool with a target location on a structure. A machine plate positionable on the structure has a plate bushing providing a hole through the plate. The apparatus also includes a nosepiece for guiding a distal end of the tool through... | 11/15/2011 |
| 7611314 | Aligning a machine tool with a target location on a structure An apparatus for aligning a machine tool with a target location on a structure. A machine plate positionable on the structure has a plate bushing providing a hole through the plate. The apparatus also includes a nosepiece for guiding a distal end of the tool through... | 11/03/2009 |
| 7419460 | Machine tool with work piece handling arrangement In a machine tool arrangement comprising a machine tool component including a mounting structure for a work piece to be machined by a suitable metal cutting tool, a housing enclosing the machine tool component, a horizontal support beam is disposed above the housing... | 09/02/2008 |
| 7412759 | Telescopic safety shield for machine tool A telescopic safety shield device includes a carrier movably engaged onto a platform and having one or more guideways tilted relative to the platform, a tool rest movably engaged onto the guideways and moveable inclinedly relative to the carrier and the platform, an... | 08/19/2008 |
| 7351018 | Method and apparatus for measuring a depth of holes in composite-material workpieces being machined by an orbiting cutting tool A method and apparatus for measuring a hole depth in a composite-material workpiece machined by a orbital cutting tool, including the steps of applying a low-level electric potential to an electrically insulated cutting tool having a cutting head with radial and axi... | 04/01/2008 |
| 7347652 | Method for milling grooves in bored workpieces A numerical control unit issues a sequence of instructions for causing a spindle of a cutter disk in a tool machine to perform successive straight displacements approximating a spiral of Archimedes, with a predetermined angle step from one point to the next, and iss... | 03/25/2008 |
| 7331584 | Chuck with nutating gear reduction A tool chuck may include a chuck body that supports chuck jaws. The chuck body may define a longitudinal axis. A driven gear may be mounted for rotation on the chuck body. The rotational axis of the driven gear may be parallel to the longitudinal axis of the chuck b... | 02/19/2008 |
| 7258514 | Machine tool comprising parallel tool spindles that can be repositioned in relation to one another A machine tool is provided, in particular for the synchronous machining of workpieces. The tool includes two or more spindle units (2, 3), which run parallel in a machining unit and are designed to hold tools and repositioning devices for the precise adjustme... | 08/21/2007 |
| 7197817 | Method for forming contact bumps for circuit board Disclosed is a method of forming bump electrodes on wired circuit boards. A high-concentration impurity Si template doped with boron and having a pit formed therein is prepared. A plated resist is formed on the high-concentration impurity Si template and an opening ... | 04/03/2007 |
| 7189038 | Orbital machining apparatus with drive element with drive pins An orbital machining apparatus for producing a workpiece hole with a cutting tool, including: a first actuator for rotating the tool about its longitudinal center axis during the machining of the hole; a second actuator for moving the tool in an axial feed direction... | 03/13/2007 |
| 7179029 | Machine for machining workpieces, especially crankshafts and camshafts, with at least one internal cutter milling tool A machine for machining workpieces has at least one milling tool with an internal cutter. The machine is provided with a first guide system and a second guide system parallel to the first guide system. The first guide system has at least one compound slide having a ... | 02/20/2007 |
| 7179028 | Device for fixation of a portable drilling or milling machine on a template for making holes in a workpiece, and an orbital machining apparatus for producing such holes A device for the temporary fixation of a portable cutting machine to a template for making holes and/or recesses in a workpiece including a guide sleeve and a tensioning unit. The guide sleeve includes a tubular hub with an outer diameter corresponding to an inner d... | 02/20/2007 |
| 7134818 | Tool-holding system for high-accuracy calibration of holes The invention relates to the field of toolings for high-accuracy finishing through-holes and non-through-holes, such as for example for calibration, lapping operations. More precisely the invention refers to a tool-holding system for high-accuracy calibration of the... | 11/14/2006 |
| 7074360 | Method and apparatus for positioning a tool relative to a workpiece An apparatus for positioning a tool relative to a workpiece, including a first carrier rotatable on a first axis and a second carrier carried by the first carrier and rotatable about a second axis defined by the first carrier. The second axis is in a parallel and of... | 07/11/2006 |
| 7048482 | Boring head with tool advance independent of rotation The transmission of the rotational movement to the driving pinion of the carriage is provided by: a first gear train with a cage mounted so that it can rotate about the axial shaft and the crown wheel of which meshes with a pinion ... | 05/23/2006 |
| 6971824 | Locking nosepiece and template An apparatus for forming features in a workpiece is provided. The apparatus includes a nosepiece that engages a boss of a template and guides a tool member therethrough. The nosepiece includes a housing and an adjustable member positioned at least partially in an in... | 12/06/2005 |
| 6931749 | Apparatus and methods for measuring the pin diameter of a crankshaft at the place of grinding An apparatus for checking diametral dimensions of crankpins and main journals in the course of grinding is provided. The apparatus includes a head with a Vee-shaped reference device and an axially movable feeler that contacts the surface of the pin to be checked, an... | 08/23/2005 |
| 6913522 | Method and device for grinding central bearing positions on crankshafts An apparatus for grinding center bearings of crankshafts includes a clamping unit for clamping and driving a crankshaft; a grinding spindle, positionable perpendicular to the crankshaft; a plurality of grinding wheels on the grinding spindle, corresponding to the nu... | 07/05/2005 |
| 6902360 | Method of cutting a hole in a composite material workpiece A hole of a hole size is cut in a composite material workpiece by selecting a milling cutter having an effective cutter size less than the hole size, mounting the composite material workpiece in operable relation to the milling cutter, rotating the milling cutter ab... | 06/07/2005 |
| 6902361 | Fixation device for a portable orbital drilling unit A fixation device for positioning a rotating machine tool onto a template, the template having at least one hole and at least one locating pin. The fixation device includes a housing with a housing tool end and a housing template end, a seat located on the housing t... | 06/07/2005 |
| 6877936 | Method and apparatus for producing a hole in a workpiece A method and apparatus for producing conical holes in a workpiece by using a substantially cylindrical cutting tool having a cutting head diameter essentially smaller than the top and bottom diameter of the hole to be formed. The method comprises the steps of positi... | 04/12/2005 |
| 6872036 | Hand tool apparatus for orbital drilling A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The tool axis passes through a predetermined point on a surface of the ... | 03/29/2005 |
| 6869259 | Milling method A milling method is provided for the manufacture of components composed of difficult-to-cut materials for turbomachines, aircraft and spacecraft by producing recesses with one or more side walls. An end milling cutter which cuts at the circumference and at the tip a... | 03/22/2005 |
| 6851901 | Tool, a machine tool, and a method of cutting The invention refers to a tool (1), a machine tool, and a method for cutting machining of a workpiece. The tool includes a mounting portion (5) for mounting of the tool in the machine tool, a tool shaft (7), which has a first inner end (7... | 02/08/2005 |
| 6840722 | Machining apparatus and machining method A machining apparatus for machining a workpiece by rotating and revolving either the workpiece or a tool 1 to contact with each other. The machining apparatus comprises rotation/revolution ratio setting motors M1 and M3 for setting a ratio of a ... | 01/11/2005 |
| 6773211 | Orbital drilling cutting tool A method and cutting tool for producing a hole or a recess in a workpiece which includes flat or curved sheets of fiber-reinforced composite material, metal or combinations thereof. The cutting tool has a shaft with a longitudinal axis and an axial cutting surface a... | 08/10/2004 |
| 6719505 | Orbital hand tool apparatus for drilling A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The apparatus includes a housing, a spindle unit in the housing for rot... | 04/13/2004 |
| 6702531 | Hand tool apparatus for orbital drilling A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The tool axis passes through a predetermined point on a surf... | 03/09/2004 |
| 6663327 | Numerically controlled orbital machining apparatus An orbital machining apparatus for producing a hole in a workpiece using a cutting tool and including a first actuator for rotating the cutting tool about its longitudinal center axis, a second actuator for moving the cutting tool in an axial feed directi... | 12/16/2003 |
| 6631771 | Controller and control method for orbit boring For an orbit boring to be performed by a tool (10) in an orbital motion along an orbit (A), a permissible range of an acceleration (a) of the orbital motion is provided to meet a criterion of a machining precision of the orbit boring, and the acceleration... | 10/14/2003 |
| 6629806 | Process for metal-removing machining A process for the metal-removing machining of a workpiece, where a disc-shaped external milling cutter is provided having cutting edges positioned on its outer circumference, the workpiece is rotated, and peripheral surfaces of the workpiece are machined ... | 10/07/2003 |
| 6565298 | Eccentric facing unit An eccentric facing unit wherein a tool driving shaft is concentrically disposed in a spindle for relative rotation with respect to the spindle. A tool-shaft supporting shaft is eccentrically disposed in a spindle and is connected with the tool driving sh... | 05/20/2003 |
| 6533508 | Machining apparatus and machining method A machining device (6) for machining a workpiece by relatively rotating the workpiece and a tool (1) which comprises a revolving shaft (8) held for rotation on its own axis that is parallel with the center axis, a main shaft (4) that is eccentric with res... | 03/18/2003 |
| 6488454 | Method for machining shoe pocket for piston in variable displacement swash plate type compressor A method for machining a pair of shoe pockets for piston in a swash plate type compressor is disclosed. In this method, the shoe pockets are respectively formed on the opposed walls of the slot in the piston of the compressor while conforming to a single ... | 12/03/2002 |
| 6435783 | Variable radius notching machine The present invention relates to a notching machine for forming a radial notch into a workpiece, such as the side or end of a tube, pipe or rod. The notching machine includes a workpiece positioning assembly, a hub and spindle assembly, an offset mechanis... | 08/20/2002 |
| 6322300 | Milling machine The problem addressed by the invention is to provide a milling machine which can be used to machine eccentric end faces and peripheral faces and which ensures a short machining time despite its simple design. A milling machine of this king for machining w... | 11/27/2001 |
| 6283687 | Multiple milling on crankshafts The invention relates to a process and a device for machining of workpieces (10) like crankshafts or similar components which are rotated about their own axis during machining, at least two mutually independently operating rotary milling tools (15, 16, 21... | 09/04/2001 |
| 6233810 | Apparatus for machining workpieces The present invention relates to an apparatus for machining workpieces (W1 to W4) by stock removal, in particular the main (a1 to a5) and/or connecting rod bearing journals (b1 to b4) of crankshafts. For this purpose the apparatus is equipped with at leas... | 05/22/2001 |
| 6203477 | Cutter changing systems and methods for internal crankshaft miller A cutter changing system and a method of its operation are disclosed for a crankshaft fabricating miller of internal type in which a cutter body having tips attached thereto along an inner peripheral surface thereof is fitted with and fixed to a cutter ad... | 03/20/2001 |
| 6161991 | Method of machining crankshaft A method of machining a crankshaft from a workpiece whereby all of pin and journal portions of the workpiece are milled and thereby machined with a single crankshaft miller unit. The method comprises: establishing a phase position of the workpiece (3) wit... | 12/19/2000 |
