Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7424776 | Method for machining a workpiece A method for machining a workpiece in which a machine tool comprising a first and a second chuck devices is employed to machine the workpiece, the machine tool being used in which the first and the second chuck devices comprise a chuck main body, plural chuck jaws, ... | 09/16/2008 |
| 7412762 | Method and device for introducing weakened lines into a component rigid per se For introducing a weakened line into a component 10, which is rigid per se and does not conform to a supporting mold or a receiving means in correspondence with the true shape, especially into an injection-molded part such as an instrument panel of an automob... | 08/19/2008 |
| 7369646 | Rotating envelope x-ray radiator A rotating envelope radiator has a radiator housing surrounded by an external housing to form an intervening space in which a coolant flows. To prevent the formation, at high rotational frequencies, of reverse flows of the coolant in the intervening space, a flow co... | 05/06/2008 |
| 7367756 | Work phase determination method for machine tools, and device therefor In adjusting phase for work (W), the operation of mounting/dismounting a reference tool on a spindle (6) is dispensed with and so is a storage space for the reference tool, and besides, it is arranged that the thrust on the work (W) does not directly act on t... | 05/06/2008 |
| 7306412 | Rotary milling cutter and milling method using the same technical field An end mill 10 is a tool for milling a metal block such as a metal mold and is placed in a machine tool such as a milling machine when in use. The end mill 10 is used to provide a rotary milling cutter and a milling method using the same, in which it i... | 12/11/2007 |
| 7287939 | Method for controlling relative displacements of a tool against a workpiece Relative movements of a tool and a workpiece are controlled by moving a tool axis in all spatial dimensions for the material-removal machining of the workpiece to produce a desired target contour of the workpiece by a sequence of relative movements along a tool traj... | 10/30/2007 |
| 7261500 | Method and apparatus for machining a blank from all directions in a machine tool or milling machine The corresponding machine tool or milling machine for carrying out the method described has a milling spindle which is displaceable in three spatial directions and with which the workpiece can be machined in a machining region, the machine tool or milling machine ha... | 08/28/2007 |
| 7237989 | Milling method used for producing structural components A milling method is for producing milled structural components of materials that are difficult to machine by chip-cutting. A milling tool with a tool radius is rotationally driven about an axis of the milling tool to ensure a central rotation thereof, whereby a refe... | 07/03/2007 |
| 7220087 | Work processing method in machine tool, processing jig for performing the method, and support device for work processing A main shaft (6) movable in a direction of X-axis is provided at a position on one side of a foundation (1), and a lateral stand (12) is fixed on the top portion of the rotation support shaft (10). On the upper surface of the lateral stan... | 05/22/2007 |
| 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 |
| 7168898 | Process and device for machining by windowing of non-deformable thin panels An apparatus and method for machining of thin panels, in particular, panels having a complex shape, specifically non-deformable panels, in which the panel to be machined is placed beforehand in an isostatic position, characterized by: one defines one or more areas o... | 01/30/2007 |
| 7065848 | Crankshaft production machine A crankshaft production machine for manufacture of crankshafts (15) having centric and eccentric surfaces to be machined, the said crankshafts being chucked rotatably around a C axis (5, 6), comprises a headstock, a counter spindle or tailstock, at lea... | 06/27/2006 |
| 7054711 | Unit for the production of track elements According to the invention, a unit (10) is proposed for the production of track elements (25), which comprises a plurality of clamping devices (14) arranged one after another in the longitudinal direction of the unit. Provided in the clamping de... | 05/30/2006 |
| 6973861 | Lathe-cutting apparatus for crankshaft and lathe-cutting method thereof A lathe-cutting apparatus and a method with a structure of a chuck being simple, which are capable of lathe-cutting an eccentric part of a crankshaft with high accuracy are provided. For this purpose, the apparatus includes a supporting device (21) for suppor... | 12/13/2005 |
| 6968768 | Slitting saw The disclosure describes a slitting saw used to cut an opening in a pipe. The saw generally comprises a housing mounted on an XYZ positioning system, a drive assembly and a cutting blade. A motor is used to drive a gear train which creates rotating of the cutting bl... | 11/29/2005 |
| 6932548 | Surface compensating shaving apparatus A surface compensating shaving apparatus (24) has been provided for removing a plurality of pins (12) from a surface of a pinmat (14). The apparatus (24) includes a rotary member (28) and a surface compensating member (32) t... | 08/23/2005 |
| 6929435 | Contour plunge milling A plunge milling system (10) for effecting rapid removal of material from a workpiece during a rough and/or finishing cutting procedure. In this system, an axial cutting tool (12) is rotated about its axis and axially moved into engagement with the wor... | 08/16/2005 |
| 6877934 | Milling head for thread whirling A milling head for thread whirling, the milling head includes a plurality of cutting elements evenly disposed around a center hole, each cutting element in the plurality of cutting elements includes at least two cutting surfaces formed thereon. Any one of the at lea... | 04/12/2005 |
| 6877536 | Joinery member and fastener and process and apparatus for placement of the fastener A device (41) for positioning a joinery fastener (74) in a joinery member (33) for later use in forming a joinery assembly. The fastener positioning device (41) includes a feed magazine (82) formed for feeding joinery fasteners ( | 04/12/2005 |
| 6726413 | Contour plunge milling A plunge milling system (10) for effecting rapid removal of material from a workpiece blank during a rough and/or finishing cutting procedure. In this system, an axial cutting tool (12) is rotated about its axis and axially moved into engagement with t... | 04/27/2004 |
| 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 |
| 6612789 | Compact disc shaping apparatus and method The system constructed according to the present invention operates by properly positioning a base compact disc (CD) onto a cutting table and then cutting the CD to a preprogrammed shape. Base CDs are stacked on an elevator system. The CDs include one side... | 09/02/2003 |
| 6506004 | Method of controlling workpiece machining The invention concerns a method of controlling the machining of a workpiece which moves during the machining operation and on which a plurality of tool units operate simultaneously at different machining locations, in particular for controlling the rotary... | 01/14/2003 |
| 6491482 | Milling method A milling method is provided in which a finished part of any desired contour is milled from a blank of any desired contour by the milling tool being guided on a continuous, spiral guide path from the blank continuously to the finished part. In this case, ... | 12/10/2002 |
| 6453528 | Device and method for the machining of crankshaft pins Disclosed is a portable apparatus for the machining of a crankshaft pin of a crankshaft installed in an engine. The apparatus is supported on the crankshaft-web side surfaces and performs economical procedures by turning, milling or grinding. The apparatu... | 09/24/2002 |
| 6363597 | Partial or complete use of a pressurized-gas cylinder known per se for compressed, liquefied or dissolved gases The invention relates to the partial or complete use of a pressurized gas cylinder known per se for compressed, liquefied or dissolved gases as a liner for a composite cylinder. This enables production costs of a composite cylinder to be reduced by 1/3 wh... | 04/02/2002 |
| 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 |
| 6146063 | Apparatus for machining crankpins A cutting insert for milling has a generally perpendicular cutting face that is peripherally bounded by respective main cutting edges and has free faces set at a positive angle and having common edges forming auxiliary cutting edges. The insert has a posi... | 11/14/2000 |
| 6101694 | Method for removing used elastomeric covers from rollers and a device for performing same The method for removing used elastomeric covers from rollers is performed by approaching a rotating cutter head having a number of cutting tools mounted on an indexable insert holder from one end of the cover of the rotating roller to close to the roller ... | 08/15/2000 |
| 6098258 | Combined machining apparatus and machining method by using the same A combined machining apparatus for turning (lathing) and broaching a workpiece is disclosed which includes a work head (4) for carrying a workpiece (12) to be machined while in rotation as clamped thereon, and one or more broaching unit (2) disposed proxi... | 08/08/2000 |
| 6045307 | Camshaft shaping machine A camshaft shaping machine that is capable of providing a camshaft shaped with a cam surface inclined with respect to the cam axis is disclosed. The machine includes a pair of work heads (2) for clamping a camshaft workpiece (4) at its opposed ends rotata... | 04/04/2000 |
| 6027288 | Working apparatus for chamfering workpieces A working apparatus comprising, a base, a work piece supporting and rotating means on the base to hold and rotate a work piece, a working tool unit on the base to hold a working tool to be rotatable and which forwardly and rearwardly moves in horizontal d... | 02/22/2000 |
| 6026549 | Crankpin phase indexing method and apparatus A crankshaft phase indexing apparatus of this invention is provided with a pair of spindles arranged in alignment with a first axis. The Spindles are rotated respectively by a pair of spindle driving motors, which are controlled to rotate at the same spee... | 02/22/2000 |
| 5984599 | Method and machine for rotary milling the crankpins and main bearing pins of crankshafts A crankshaft (6) is rotated about its axis (7), and all of its crankpins (28, 29, 30), which each respectively have an eccentricity (e) relative to the axis (7), and all of its main bearing pins (62, 63, 64, 65), which each have non-eccentric cylindrical ... | 11/16/1999 |
| 5953974 | Apparatus for cutting slots in corrugated and twin-wall pipes An apparatus for cutting slots in corrugated and twin-wall pipes that have annular elevations alternating with annular impressions, comprises a machine frame with a pipe duct and a lifting carriage for moving a pipe through the pipe duct. Two groups of ho... | 09/21/1999 |
| 5890854 | Shaping tool for stock removal machining of wheelsets A shaping tool for the stock-removal machining of wheelsets. The tool contains a shell-end milling cutter comprised of a disc-shaped body with a multiplicity of cutting edges which overlap each other and are disposed spirally staggered on pitch circles on... | 04/06/1999 |
| 5876161 | Method and apparatus for making a longitudinal hole in a pipe An apparatus and method for making an elongated hole in a pipe which includes drilling a rotating conical tool through the pipe wall by pushing the conical tool in the direction of its rotating axis to a desired depth, then simultaneously lifting and tilt... | 03/02/1999 |
| 5839862 | Machine tool with spindle head pivotable about two axes A machine tool which has a swingable spindle head comprises a base member 1, a retaining member 5 attached swingably by a support shaft 3 to the base member 1, a spindle head 7 attached onto the retaining member 5, a lateral slider 15 being capable of lin... | 11/24/1998 |
