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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7217173 | Apparatus micro lapping with abrasive for polishing precision screw and polishing method thereof The present invention is an apparatus for polishing a precision screw. The apparatus uses abrasive in a sealed container for polishing. Hence, the present invention can do precise polishing to obtain smooth surface of thread by removing tiny burrs with the abrasive.... | 05/15/2007 |
| 7170190 | Apparatus for oscillating a head and methods for implementing the same An apparatus for brushing a surface of a substrate is provided. The apparatus includes a brush for scrubbing the surface of the substrate, a head for holding the brush, and an arm. The arm is configured to hold the head about a connection point. The arm is connected... | 01/30/2007 |
| 7118464 | Apparatus for smoothing the surface of a gas turbine blade An abrasive device may include first ring-shaped container filled with a liquid abrasive medium. A second container may be arranged next to the first container and filled with a second liquid abrasive medium. A pivoting arm may be arranged between and above the cont... | 10/10/2006 |
| 7094131 | Microelectronic substrate having conductive material with blunt cornered apertures, and associated methods for removing conductive material A microelectronic substrate and method for removing conductive material from a microelectronic substrate. In one embodiment, the microelectronic substrate includes a conductive or semiconductive material with a recess having an initially sharp corner at the surface ... | 08/22/2006 |
| 7048613 | Polishing method In a method for the machine polishing of workpieces, the workpiece is immersed into a container filled with abrasive and is moved relative to the abrasive container. The workpiece is here moved up and down in the vertical direction, rotated about its own central axi... | 05/23/2006 |
| 7040209 | Tool fixtures for use in rotational processing A fixture for holding tools to be processed in a rotational processing apparatus. The fixture includes at least one mounting rod with a plurality of spacers slidably disposed on the mounting rod. A plurality of tools are disposed about the rod, each tool being space... | 05/09/2006 |
| 6962522 | Barrel polishing device A barrel polishing device for polishing a workpiece having a relatively complicated shape such as a vehicle wheel. The barrel polishing device comprises a polishing medium storage tank for storing polishing media, a base, a workpiece supporting shaft mounted on the ... | 11/08/2005 |
| 6918818 | Polishing method In a method for the machine polishing of workpieces, the workpiece is immersed into a container filled with abrasive and is moved relative to the abrasive container. The workpiece is here moved up and down in the vertical direction, rotated about its own central axi... | 07/19/2005 |
| 6918937 | Abrasive polishing composition The present invention is based on the practice of abrasive machining with no sealed working chamber by the employment of a visco-elastic abrasive medium, behaving predominantly as an elastic solid at the applied strain of the orbital working motion, and applying orb... | 07/19/2005 |
| 6817051 | Guide apparatus for a workpiece having a porous surface coating and a method for the polishing of such a workpiece The guide apparatus in accordance with the invention for the guiding of a workpiece (2), in particular of a rotationally asymmetrical workpiece (2), having a porous surface coating (3) in a polishing container (4) has two guide members ( | 11/16/2004 |
| 6776688 | Real-time polishing pad stiffness-control using magnetically controllable fluid A method of CMP polishing of a semiconductor wafer is described that includes using a polishing pad on a platen/table with the polishing pad including a sub-pad containing pockets of magnetorheological fluid. The stiffness of the sub-pad is controlled by selectively... | 08/17/2004 |
| 6769961 | Chemical mechanical planarization (CMP) apparatus A chemical mechanical planarization (CMP) apparatus includes a bath of an aqueous solution. A first holder, which is configured to support a wafer, is disposed within the bath. A first spindle is configured to rotate the first holder. A second holder, which is rotat... | 08/03/2004 |
| 6688953 | Barrel polishing apparatus A barrel polishing apparatus which can easily hold a work having a large mass and detach therefrom. The barrel polishing apparatus includes a polishing medium receiving container having a polishing medium received therein and a work supporting arm for hol... | 02/10/2004 |
| 6641465 | Polishing method, polishing device, glass substrate for magnetic recording medium, and magnetic recording medium There are disclosed a polishing method and a polishing device in which cleaning of a glass substrate surface can be achieved to a high level. A glass substrate (MD substrate 1) in the shape of a circular disc having a circular hole in a center portion is ... | 11/04/2003 |
| 6572458 | Device for removing burrs from workpiece Disclosed is a device for removing burrs from a workpiece, in which a barrel having an inner and an outer barrels is located within a frame constituting a main body of the device. The inner barrel contains a plurality of media for removing the burrs from ... | 06/03/2003 |
| 6544110 | Abrasive polishing apparatus The present invention is based on the practice of abrasive machining with no sealed working chamber by the employment of a visco-elastic abrasive medium, behaving predominantly as an elastic solid at the applied strain of the orbital working motion, and a... | 04/08/2003 |
| 6406356 | Wheel finishing apparatus and method A wheel finishing apparatus for abrasively finishing the front faces of automobile wheels. The apparatus has a rotating carousel hub and multiple arms connected to the carousel hub which extend out to wheel mounting ends. A wheel is rotatably mounted to e... | 06/18/2002 |
| 6336844 | Method and machine for the ultrasonic peening of parts on a wheel The invention relates to a method and machine for so-called "ultrasonic" peening employing a mist of microbeads inside an active chamber 30c for peening parts 21 on a wheel 19, ie blades on a rotator. The periphery of the wheel 19 is brought simultaneousl... | 01/08/2002 |
| 6273787 | Abrasive polishing method, apparatus and composition The present invention is based on the practice of abrasive machining with no sealed working chamber by the employment of a visco-elastic abrasive medium, behaving predominantly as an elastic solid at the applied strain of the orbital working motion, and a... | 08/14/2001 |
| 5672094 | Centrifugal dry barrel finishing machine A centrifugal dry barrel finishing machine is disclosed. The machine include a plurality of barrel pots which are rotated about their axes of rotation and revolved about an axis of revolution. A mass is put in the barrel pots to finish workpieces by dry m... | 09/30/1997 |
| 5577948 | Magnetorheological polishing devices and methods A method of polishing an object is disclosed. In one embodiment, the method comprises the steps of creating a polishing zone within a magnetorheological fluid; determining the characteristics of the contact between the object and the polishing zone necess... | 11/26/1996 |
| 5449313 | Magnetorheological polishing devices and methods A method of polishing an object is disclosed. In one embodiment, the method comprises the steps of creating a polishing zone within a magnetorheological fluid; determining the characteristics of the contact between the object and the polishing zone necess... | 09/12/1995 |
| 5402607 | Method and multi-axis numerically-controlled machine for machining surfaces In this machining method using a multi-axis numerically-controlled machine, a workpiece holder (4) is rotated (rotation ) in step-by-step motion around an axis (Z), rectilinear movements are produced between a tool (3) and the workpiece holder (4) ... | 04/04/1995 |
| 5383306 | Cleaning apparatus for a cylindrical roll, and in particular a mill roll Cleaning apparatus for a roll placed in contact with a metal strap moving longitudinally in an installation comprising a set of rotary-mounted superposed rolls between two stands of a fixed supporting cage and comprising at least one wiping tool (4) paral... | 01/24/1995 |
| 5353553 | Method and apparatus for treating brake rotors The method and apparatus for honing and treating the pad engaging surfaces of vehicle brake rotors or discs consisting of engaging the rotor surface with a plurality of moving abrasive elements mounted upon flexible resilient stems wherein a smooth finish... | 10/11/1994 |
| 5325635 | Cutting and grinding apparatus for a glass sheet edge The invention relates to a cutting and grinding apparatus for a glass sheet edge, comprising a grinding machine (5) which includes two rotatable glass-supporting tables (10) and displacement guides (11) for shifting tables (10) aside from a conveyor track... | 07/05/1994 |
| 5271184 | Vibratory finishing apparatus for hollow cylindrical and other large or groupings of articles A vibratory finishing apparatus adapted to deburr cylindrical and other large articles or groupings of articles includes a vibrating vessel adapted to receive the cylindrical object. The cylindrical object is supported and rotated within the vibrating ves... | 12/21/1993 |
| 4730417 | Finishing method and apparatus A finishing method and apparatus wherein a tub containing loose abrasive material is rotated at high speeds about a vertical axis to cause finishing media to form a layer of media along the side wall of the tube. One or more workpieces to be finished are ... | 03/15/1988 |
| 4706414 | Apparatus for rotatably supporting a marine propeller in a vibrating media An apparatus adapted to rotatably support a propeller in a vibrating media, the propeller including a tubular hub having an annular end surface, the apparatus comprising a mounting bracket, a hub member rotatably mounted on the mounting bracket for rotati... | 11/17/1987 |
| 4689921 | Process of contouring the edges of a ceramic rotor A method of improving the impact resistance of a ceramic turbine rotor by rotating the rotor in a number of abrasive grindstones such that the edges of the rotor are rounded to a radius in the range of about 0.2 to 1 mm.... | 09/01/1987 |
| 4615145 | Apparatus for mechanically finishing workpieces A polishing apparatus is provided with a fixed gear and at least one planet gear which meshes with the fixed gear to make at least one spindle coupled to said planet gear perform orbital revolution and own rotation by making the planet gear rotate around ... | 10/07/1986 |
| 4549370 | Machine for finishing complex profiled workpieces Machine for finishing complex profiled workpieces having a rotating barrel where the workpieces are machined in an loading/unloading unit, for example, a manipulator with grippers. The barrel has a torus-shaped work area defined by a bottom and cylindrica... | 10/29/1985 |
| 4461126 | Cleaning process for corrugated aluminum electrical transmission line enclosure A process for preparing the interior of a corrugated pipe or sheath comprises the steps of placing a predetermined amount of a tumbling abrasive material into the sheath, and then rotating the sheath.... | 07/24/1984 |
| 4373296 | Deburring apparatus for workpieces A deburring apparatus for finishing workpieces includes machines having rotary tools and a gyro-finishing machine. The workpieces are conveyed by an intermittently-driven charging conveyor with a given pitch. The workpieces are transferred from the convey... | 02/15/1983 |
| 4240229 | Immersion type grinding apparatus A vertically arranged circular or polygonal grinding tank and shafts which are fixed to or rotatably formed on a main shaft plate provided rotatably above the grinding tank are provided. The grinding tank is charged with such proper grinding material as h... | 12/23/1980 |
| 4034515 | Vertical grinder A vertical grinder wherein at least two rotating grinding tanks are provided on a horizontally movable bed body, vertically movable and rotatable rotary tanks containing grinding materials respectively for coarse, medium and lustrous finishes are arranged... | 07/12/1977 |
