Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Application No. | Application Title | Issue Date |
| 20110256806 | OPHTHALMIC MACHINE AND METHOD FOR MACHINING AND/OR POLISHING A LENS The invention relates to an ophthalmic machining machine comprising machining means and means for supporting a blank. The invention is characterised in that the machine is capable of transferring marks to said blank that can be identified by monitoring means for reposit... | 10/20/2011 |
| 20110159783 | METHOD AND APPARATUS FOR POLISHING A SUBSTRATE A polishing method is used for polishing a substrate such as a semiconductor wafer to a flat mirror finish. A method of polishing a substrate by a polishing apparatus includes a polishing table (100) having a polishing surface, a top ring (1) for holding a... | 06/30/2011 |
| 20110076924 | METHOD OF DETERMINING THE LUBRICATION MECHANISM IN CMP The present invention is a method for obtaining data easily, accurately and effectively that may be used in determination of Sommerfeld Numbers and COF for CMP polishing. Using the Sommerfeld Numbers and COF values thus obtained the lubrication mechanism of CMP polishin... | 03/31/2011 |
| 20110065361 | Device For Finish-Machining of Optically Effective Surfaces of, In Particular, Spectacle Lenses A device for finish-machining of the optically effective surfaces of, in particular, spectacle lenses has a spindle shaft, which has a tool mount section and which is mounted in a spindle housing to be rotatable about a workpiece rotational axis (A). An electric rotary ... | 03/17/2011 |
| 20110053459 | SLOW SPEED SPINDLE FOR MICROPUNCH GRINDING An apparatus has a motor, a shaft attached to the motor arranged to be turned by the motor when the motor operates, an attachment at an end of the shaft opposite the motor arranged to allow mounting of components to be ground, a loading block arranged under the end of t... | 03/03/2011 |
| 20100330880 | Machine Tools and Methods of Operation Thereof A machine tool is provided which comprises a machine base (10), a first support (20,100) mounted on a first rotational machine axis on the base, and a second support (22,102) mounted on a second rotational machine axis on the base. The second rotati... | 12/30/2010 |
| 20100273397 | SERVO STROKING METHOD AND SYSTEM FOR PRODUCING SPECIAL SHAPES A servo stroking method and system for honing wherein the cam stroking motion is controlled via combined acceleration and deceleration cam profiles to produce a finite jerk profile, a precision positioning capability for the honing element or elements, and accurate posi... | 10/28/2010 |
| 20100257711 | MACHINE TOOL AND METHODS FOR POINTING WIRE A machine tool for pointing a plurality of wires is provided. The machine tool comprises a magazine, a base frame, a slide guide, a fixture, a grinder, and a numerical control system. The magazine is operable for holding the plurality of wires, to extend a wire end from... | 10/14/2010 |
| 20100203807 | Pressure control system of wafer polishing apparatus A pressure control system of a wafer polishing apparatus includes a main input air pressure regulator, an air branch conduit, a plurality of first pipes, a plurality of auxiliary air pressure regulators, a plurality of second pipes, and a plurality of air pressure contr... | 08/12/2010 |
| 20100173565 | GRINDING CENTER AND METHOD FOR THE SIMULTANEOUS GRINDING OF MULTIPLE CRANKSHAFT BEARINGS The invention relates to a grinding center for the simultaneous grinding of multiple main bearings and rod bearings and/or central sections of crankshafts (22). Two rod bearing grinding spindles (14, 15), wherein the first can be displaced only in the Z di... | 07/08/2010 |
| 20100167627 | Precision Machining Apparatus and Precision Machining Method A precision machining apparatus is structured such that a feed-screw mechanism and an actuator are mounted on a second mount which supports a rotating device that rotates a wheel, and grinding is performed while appropriately adjusting the amount of movement of the seco... | 07/01/2010 |
| 20100130102 | LOAD CUP SUBSTRATE SENSING Embodiments of the present invention generally provide a load cup used in the transfer of substrates in a chemical mechanical polishing system. The load cup includes an improved substrate edge sensing mechanism to ensure a substrate is present and correctly positioned i... | 05/27/2010 |
| 20100093264 | Grinding apparatus having an extendable wheel mount A grinding machine wherein coarse and fine grind wheels are mounted to a single rotating spindle. A multiple grind wheel mount is attached to the lower portion of the rotating spindle, the coarse and fine wheels being supported by the wheel mount, the wheel mount contai... | 04/15/2010 |
| 20100009600 | Grinding apparatus for a pin for use in power transmission chain and manufacture method of a pin for use A disc-like grinding wheel 5 is formed with a circumferential groove 5a, the opposite walls of which define grinding surfaces 5b. A rotated carrier 3 brings a load pin 55 into rotary movement relative to the grinding whee... | 01/14/2010 |
| 20100009599 | APPARATUS AND METHOD FOR POLISHING SEMICONDUCTOR WAFERS USING ONE OR MORE POLISHING SURFACES An apparatus and method for polishing objects, such as semiconductor wafers, utilizes one or more polishing surfaces, multiple wafer carriers and at least one load-and-unload cup. The load-and-unload cup may be configured to move to and from the wafer carriers in a pivo... | 01/14/2010 |
| 20090318059 | IMPROVED GRINDER/POLISHER An improved grinder/polisher includes a base having a bowl, a rotating drive plate and a drive plate drive that is adapted to support a platen. The grinder/polisher includes a head configured to support a specimen holder. The head has a first drive for rotational drive ... | 12/24/2009 |
| 20090305612 | Substrate processing apparatus, substrate processing method, substrate holding mechanism, and substrate holding method An apparatus for processing a substrate is disclosed. The apparatus includes a polishing section configured to polish a substrate, a transfer mechanism configured to transfer the substrate, and a cleaning section configured to clean and dry the polished substrate. The c... | 12/10/2009 |
| 20090264048 | Machine and process for grinding dies The invention relates to a machine and process for grinding dies, in which the work axis (CO) of the plate (2.1) in which the die (1) to be machined is anchored is controlled at all the points of its angular movement, allowing the interpolation of the move... | 10/22/2009 |
| 20090247053 | Substrate production apparatus for producing a substrate for a display device A substrate production apparatus for producing a substrate for a display device is disclosed. The substrate production apparatus includes a first production apparatus including a first scriber to scribe a first mother substrate into at least one first model substrate an... | 10/01/2009 |
| 20090239448 | MACHINING QUALITY JUDGING METHOD FOR WAFER GRINDING MACHINE AND WAFER GRINDING MACHINE A machining quality judging method for a wafer grinding machine and wafer grinding machine are disclosed. The thickness of a wafer 2 is acquired from the feed amount of a grinding unit 3 while at the same time actually measuring the thickness of the wafer ... | 09/24/2009 |
| 20090239449 | Automatic constant pressure polishing apparatus for improving surface accuracy of lens Disclosed is an automatic constant pressure polishing apparatus. The automatic constant pressure polishing apparatus comprises a housing having a hollow section therein, a rubber pad installed in the housing and having superior expansion and contraction characteristics,... | 09/24/2009 |
| 20090170404 | APPARATUS AND METHOD FOR POLISHING MEDIA DISCS Disclosed is an apparatus for polishing media discs by removing or reducing scratches or substances from the surface of damaged discs, including computer data CDs, DVDs, gaming discs and other media discs. The apparatus enables removal or reduction of scratches and mate... | 07/02/2009 |
| 20090170405 | ASSEMBLY FOR MANUALLY GRINDING A FACE OF A VEHICLE BODY PART An assembly for manually grinding a face of a motor vehicle body part, including a grinding mechanism, a moving carriage supporting the grinding mechanism, a mechanism to guide the carriage moving along the face to be ground, and a support guide held in position with re... | 07/02/2009 |
| 20090124170 | Bit sharpening apparatus and method of using Disclosed in the present application is a sharpening apparatus and method for sharpening a cutting bit. The apparatus comprises a sharpening member and a laser for accurately positioning the cutting bit surface to be sharpened with respect to the sharpening member. The ... | 05/14/2009 |
| 20090104849 | POLISHING PAD AND POLISHING METHOD A polishing pad and a polishing method for polishing a substrate are described. The polishing pad includes a polishing layer and at least two grooves. The grooves form polishing tracks respectively. The polishing tracks collectively construct an even tracking zone. A be... | 04/23/2009 |
| 20090075564 | SUPERABRASIVE TOOL AND MACHINING METHODS A tool for use in an abrasive machining process has a body extending along a central longitudinal axis from a first end to a tip end. An abrasive material is located on the tip end. The body has a tip end protuberance. An abrasive material is located on the protuberance... | 03/19/2009 |
| 20090068928 | GRINDING WHEEL FOR ROLL GRINDING AND METHOD OF ROLL GRINDING A method of grinding a ferrous roll may include: rotating a grinding wheel on a machine spindle to form a rotating grinding wheel; rotating a ferrous roll to form a rotating roll surface; bringing the rotating grinding wheel into contact with the rotating roll surface; ... | 03/12/2009 |
| 20090061735 | SYSTEMS AND METHODS FOR IN-SITU RECORDING HEAD BURNISHING Systems and methods are provided for burnishing a recording head in-situ in a magnetic recording disk drive. The burnishing process generates a tribocurrent, which is electricity generated by the rubbing of dissimilar materials. Different materials exhibit widely differ... | 03/05/2009 |
| 20090047869 | Precision Machining Method A precision machining method enabling grinding with high accuracy is provided. The method includes a first step of producing an intermediate ground workpiece by roughly grinding a workpiece (a) with a diamond grinding wheel (b), and a second step of producing a final gr... | 02/19/2009 |
| 20090042483 | Working System, Method for Detecting Contact, and Acoustic Emission Contact Detection Device The object is to aim at the reduction in the influence of noises in an output of an AE sensor in a working machine. In a working system comprising a working device for working a work W by causing a tool 14 to come into contact work W, an AE sensor 21, and ... | 02/12/2009 |
| 20090017734 | Apparatus and method for grinding workpiece An apparatus and method for grinding a workpiece by rotating the workpiece about a rotational axis, rotating a cylindrical grinding wheel about a rotational axis being parallel to the rotational axis of the workpiece, moving the grinding wheel relative to the workpiece ... | 01/15/2009 |
| 20080311824 | APPARATUS FOR SMOOTHING A PRODUCT, IN PARTICULAR A SEMI-FINISHED CERAMIC PRODUCT An apparatus (1) for smoothing a product (2), in particular a semi-finished ceramic product, comprises: an abrasive tool (3) in the form of an endless belt (4) which is trained around at least one pair of pulleys (5, 6), at least one o... | 12/18/2008 |
| 20080305717 | PLATEN ASSEMBLY AND WORK PIECE CARRIER HEAD EMPLOYING FLEXIBLE CIRCUIT SENSOR A platen assembly is provided for supporting a polish pad of the type utilized to planarize a wafer. The platen assembly comprises a sensor system and a polish platen having a first surface for supporting the polish pad. The sensor system comprises a flexible sensor and... | 12/11/2008 |
| 20080287044 | Method of transferring a wafer A method of transferring a wafer is disclosed. The method comprises providing a pedestal and at least one spray orifice extending through the pedestal; disposing a wafer above the pedestal using a first robot, wherein the wafer has a first surface and a second surface, ... | 11/20/2008 |
| 20080268752 | SUBSTRATE GRINDING METHOD AND DEVICE A grinding method wherein the correlation between the amount of inertial grinding occurring in performing spark-out by a grinding unit and the maximum load current in a motor of the grinding unit is grasped, and a correction value for the amount of inertial grinding cor... | 10/30/2008 |
| 20080254716 | Variable rate method of machining gears A method of machining gears or other toothed articles wherein the workpiece feed rate and/or the tool shifting is varied so as to produce an irregular surface pattern on tooth surfaces with a resulting reduction in mesh noise. The method is particularly applicable to gr... | 10/16/2008 |
| 20080242200 | METHOD FOR MANUFACTURING SURFACE-COATED CUTTING INSERT This method for manufacturing a surface-coated cutting insert includes clamping and holding a surface-coated cutting insert with a pair of rotary shafts which are rotatable around an axis, and jetting an abrasive fluid to the surface of the surface-coated cutting insert... | 10/02/2008 |
| 20080220696 | HONING FEED SYSTEM HAVING FULL CONTROL OF FEED FORCE, RATE, AND POSITION AND METHOD OF OPERATION OF THE SAME The feed system for a honing machine provides a capability to dynamically correct in real time errors in bore size inferred arising from variations in feed force, and a method of operation of the same. The system allows a user to select between rate and force controlled... | 09/11/2008 |
| 20080220695 | Apparatus on a flat card or roller card for grinding a fibre processing clothing disposed on a rotating cylinder or a card flat In an apparatus on a carding machine for grinding a fibre processing clothing on a roller or a card flat, grinding equipment includes at least one grinding element and an infeed device serving to position the grinding element against the clothing. To permit reliable det... | 09/11/2008 |
| 20080207090 | METHOD FOR GRINDING JOURNAL SECTION OF WORKPIECE For grinding one of axially spaced journal sections of a workpiece each having a cylindrical surface and a pair of shoulder surfaces extending radially outward from the opposite end portions of the cylindrical surface, a rotating grinding wheel is advanced to grind the ... | 08/28/2008 |
