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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 |
| 8062094 | Process of durability improvement of gear tooth flank surface Pinion gears for planetary gear transmissions are hobbed, heat treated, and then ground to get better control of the leads/profiles on all the gear teeth. Then a light shot peening is applied to the tooth flanks to achieve the desired compressive residual stresses o... | 11/22/2011 |
| 7273409 | Process for forming spherical components A process is disclosed for forming a spherical component using a centrifugal processing machine. The process includes the steps of providing a component having an initial shape with at least a portion that is non-spherical, placing the component into a container in ... | 09/25/2007 |
| 7201638 | Environmental control system for a centrifugal processor A centrifugal processor is disclosed with includes an outer frame having an inner surface and an axis. At least one inner vessel positioned within the outer frame and is adapted to receive an object to be processed. A drive system rotate the inner vessel with respec... | 04/10/2007 |
| 6520837 | Method and apparatus for ultrafine grinding and/or mixing of solid particles In a method for ultrafine grinding of solid particulate material to mean particle sizes far below 1 micrometer and/or for mixing of powder and agglomerate material with mean particle sizes in the range of nanometers, the material to be ground and/or mixed... | 02/18/2003 |
| 6279351 | Method and apparatus for making glass and particularly ceramic frits A method for making glass and particularly ceramic frits, comprising the steps of: introducing in a wet grinding unit, after a metering step according to chosen proportions, materials which constitute a mixture to be melted, to produce a slurry; screening... | 08/28/2001 |
| 6217415 | Method and arrangement for reducing friction between metallic components A method for treating a surface of a first metallic component with an arrangement that includes (i) a receptacle, (ii) a polishing media located within the receptacle, and (iii) a mixing device operative to cause relative movement between the polishing me... | 04/17/2001 |
| 6186868 | Chilled temperature polishing method for soft acrylic articles A method of polishing articles comprising soft acrylic materials is disclosed. The method includes a polishing step and a cleaning step. In the polishing step a receptacle is charged with polishing beads of various sizes, alumina, sodium hydroxide, water,... | 02/13/2001 |
| 6165053 | Method and apparatus for processing in cold air blast Processing, such as grinding or cutting, in a cold air blast is performed at low temperature with higher precision and higher efficiency in a pollution-less situation, wherein a conventional processing fluid is not applied. A compressed dry cold air of a ... | 12/26/2000 |
| 6132291 | Specific heat treating process that significantly alters lythic and related materials A method of treating stone that produces dramatic natural changes by the use of heat only, the dramatic changes being, deeper more brilliant colors, smoother texture, richer luster, and easier workability. This method first includes; Providing stone mater... | 10/17/2000 |
| 5733173 | Pharmaceutical grinding apparatus and method for using same An apparatus for grinding a solid material into a granulated powder formed of particles of generally uniform size includes: a mounting frame; a grinding vessel mounted on the mounting frame which has a grinding cavity defined by a substantially planar flo... | 03/31/1998 |
| 5667423 | Method and apparatus for slicing workpiece Disclosed are an improved method and apparatus for slicing a workpiece such as a semiconductor ingot, in which coolant nozzles are disposed near the cutting edge of an annular blade, air nozzles are respectively equipped near the both side surfaces, the a... | 09/16/1997 |
| 5535469 | Pliable abrasive pellet for abrading fabrics An improved abrasive pellet for use in abrading fabrics during a wash cycle. A pellet is formed of a mixture of plastic resin, plasticizer resin and abrasive filler mixed at temperature sufficient to maintain the mixture as a liquid. The mixture is then e... | 07/16/1996 |
| 5367734 | Pliable abrasive pellet for abrading fabrics An improved abrasive pellet for use in abrading fabrics during a wash cycle. A pellet is formed of a mixture of plastic Yesin, piasticizer resin and abrasive filler mixed at temperature sufficient to maintain the mixture as a liquid. The mixture is then e... | 11/29/1994 |
| 5018312 | Deflashing apparatus An apparatus for deflashing of elastomeric elements comprising: a) a tumbling barrel having a closable opening for introducing and withdrawal of elastomeric elements and deflashing media to the interior of the barrel; b) a refrigeration chamber sized for ... | 05/28/1991 |
| 4918876 | Device to deburr molded parts subject to low-temperature brittleness Molded parts are deburred by being cooled down and treated with an abrasive. The parts are cooled down and circulated by a conveying gas which circulates in a circulation chamber, while the parts are treated with an abrasive introduced into the circulatio... | 04/24/1990 |
| 4796388 | Deflashing apparatus An apparatus for deflashing of elastomeric elements comprising: (a) a tumbling barrel having a closable opening for introducing and withdrawal of elastomeric elements and deflashing media to the interior of the barrel; (b) a refrigeration chamber sized fo... | 01/10/1989 |
| 4760630 | Thermal deburring system An apparatus for the treatment of workpieces by means of temperature and pressure shocks through the ignition of a combustible gas mixture, particularly a thermal deburring system, is proposed whose workpiece treatment chamber (1, 21, 34) consists of an o... | 08/02/1988 |
| 4258507 | Fluid heated annular vibrating finishing apparatus An annular vibrating finishing apparatus including an annular tub mounted on a floating support. A gyrating motion-producing shaft extends upwardly through the central opening in the tub and interconnects a motor and the tub. A metal jacket surrounds the ... | 03/31/1981 |
| 4037368 | Method for deflashing small parts Apparatus for removal of flash from small molded plastic and rubber parts, including a specially configured cryogenic shaking vessel and support and drive means for imparting a reciprocating rotational movement thereto. In the preferred embodiment the gen... | 07/26/1977 |
| 4011691 | Method and device for removal of fins from workpieces Fins or ridges are removed from molded workpieces by insertion into a rotating drum where they are subjected to the action of free hanging chains each mounted at one of its ends to the inner wall of the drum. Each chain has a length no greater than the in... | 03/15/1977 |
