Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7854648 | Cleaning medium and dry cleaning apparatus using the same A cleaning medium flies with an air current in a cleaning tank to collide with an object to be cleaned so as to remove an extraneous substance attached to the object. The cleaning medium includes an outer surface that comes into contact with the object and an inner ... | 12/21/2010 |
| 7309391 | Aluminum flake pigment comprising aluminum flakes as basic particles, method of manufacturing the same, and paint and ink employing the same An aluminum flake pigment containing aluminum flakes as basic particles, said aluminum flakes having an average particle diameter in the range of 3 to 20 μm and an average value of minimum diameter/maximum diameter of at least 0.6. ... | 12/18/2007 |
| 7270596 | Chemical mechanical polishing process A chemical mechanical polishing process includes rotating at least one of a semiconductor substrate and polishing pad relative to the other. A chemical mechanical polishing slurry is provided intermediate the substrate and pad. The substrate is polished with the slu... | 09/18/2007 |
| 7258833 | High-energy cascading of abrasive wear components In accordance with the present invention, a method for manufacturing tungsten carbide components is provided. The method includes forming a composite material out of tungsten carbide powder and binder powder, pressing the composite material into a plurality of compo... | 08/21/2007 |
| 7214126 | Abrasive material A flexible layer is formed on a surface of a core, and a polishing layer mixed with abrasive particles is formed on a top of the flexible layer. The flexible layer is produced by applying an emulsion adhesive as a flexible layer onto a core and attaching abrasive pa... | 05/08/2007 |
| 7195004 | Fuel injector cup with improved lead-in dimensions for reduced insertion force A fuel rail cup is provided with a lead-in volume of one-third a receiving volume of the fuel rail cup that allows insertion of an O-ring mounted on a fuel injector inlet to be inserted at 20 pound-force or less. A method of inserting the fuel injector inlet with an... | 03/27/2007 |
| 7018273 | Platen with diaphragm and method for optimizing wafer polishing A platen is provided for use in a chemical mechanical planarization (CMP) system. The platen is provided with diaphragms that overcome a fluid-conservation problem experienced in prior air-bearing platens. The diaphragms enable a removal profile to be manipulated by... | 03/28/2006 |
| 6974367 | Chemical mechanical polishing process A chemical mechanical polishing process includes rotating at least one of a semiconductor substrate and polishing pad relative to the other. A chemical mechanical polishing slurry is provided intermediate the substrate and pad. The substrate is polished with the slu... | 12/13/2005 |
| 6893333 | Chemical mechanical polishing slurry A chemical mechanical polishing slurry includes liquid and abrasive solid components, with at least some of the abrasive solid component comprising individually non-homogeneous abrasive particles. In one implementation, the non-homogeneous abrasive particles compris... | 05/17/2005 |
| 6843260 | Vibrating abrasive cleaning apparatus and method This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by at least one electric motor specially fabricated to the cleaning container assembly mounted on a rigid square tubing frame on one side by compression springs, on the opp... | 01/18/2005 |
| 6827639 | Polishing particles and a polishing agent In polishing particles each having a core-shell structure, a polishing rate can be controlled by adjusting a thickness and/or density of a shell portion. The polishing particles have the core-shell structure with an average diameter in the range from 5 to 300 nm, an... | 12/07/2004 |
| 6758729 | Centrifugal barrel finishing apparatus A centrifugal barrel finishing apparatus centrifugally polishing, grinding or otherwise finishing workpieces includes a revolving member mounted on a first rotatable shaft so as to be rotated with the first shaft, a barrel mounted to be rotated about a second shaft,... | 07/06/2004 |
| 6733374 | Grinding machine The invention proposes a device for grinding or polishing workpieces by means of an abrasive, having a container and a rotary disk located therein and rotatable relative thereto, in which the rotary disk is made from elastic material, is provided with an upwardly di... | 05/11/2004 |
| 6585577 | Vibrating abrasive cleaning apparatus and method This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by a hydraulic drive motor mounted to a square tubing fame which is housed within an enclosure that is vibrated by an eccentric shaft assembly directly coupled t... | 07/01/2003 |
| 6464565 | Method of polishing sterling silver and gold pieces The present invention provides a new and improved method for differentially polishing the surface of metallic materials in a dry tumbling operation. The process involves providing a finish of a first type on a metallic object. A protective coating is then... | 10/15/2002 |
| 6431955 | Method, device and plant for cleaning irregular pieces consisting of different materials A method, a device and a plant for cleaning irregular pieces consisting of different materials, for example cast iron pieces with parts of compressed coal dust sticking thereon and coal pieces made of compressed coal dust with parts of a contaminating fil... | 08/13/2002 |
| 6220947 | Tumble medium and method for surface treatment A tumble medium for surface treatment of an article having a first radiographic signature comprises material having a second radiographic signature different from the first radiographic signature sufficient to enable radiographic detection of the material... | 04/24/2001 |
| 6174220 | Method of manufacturing surgical needles having blunt tips A method of manufacturing blunt tip surgical needles. Taper point needles having conventional piercing tips are placed into a vessel containing a grinding media. The needles are maintained in the vessel for a sufficient amount of time to convert the pierc... | 01/16/2001 |
| 6165059 | Abrasive medium with selected density The hard coated abrasive medium is formed by providing a hollow body with abrasive deposit on the outer surface. The buoyancy is provided by the enclosed air space, and the weight is defined by the weight of the body plus the hard plating or the abrasive ... | 12/26/2000 |
| 5968213 | Structure of a forceful grinding medium The structure of a forceful grinding medium comprised of two half-housings engaged with each other, the half-housings both are integrally formed with a plurality of raised circle shaped blades. The raised circle shaped blades improve the three dimensional... | 10/19/1999 |
| 5823861 | Spiral-flow barrel finishing machine This invention relates to a spiral-flow barrel finishing machine having a cylindrical stationary metallic barrel equipped with a lining layer at a lower inside portion. A rotating barrel is equipped with a lining layer on a metallic rotational body and is... | 10/20/1998 |
| 5743790 | Vibrating abrasive cleaning apparatus and method This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by a hydraulic drive motor mounted to a square tubing frame which is housed within an enclosure that is vibrated by an eccentric shaft assembly directly coupled ... | 04/28/1998 |
| 5730645 | Hard coated abrasive medium with selected density The hard coated abrasive medium is formed by providing a hollow body with abrasive deposit on the outer surface. The buoyancy is provided by the enclosed space, and the weight is defined by the weight of the body plus the abrasive grit deposited thereon. ... | 03/24/1998 |
| 5653625 | Star shot wave tumbler systems A new Star Shot Wave Tumbler System for polishing objects such as jewelry or coins with a simple water, soap and scrubbing tumbler shot solution in a short period of time with a quality polish. The inventive device includes a circular tumbler drum to reta... | 08/05/1997 |
| 5601475 | Method of manufacturing surgical needles having blunt tips A method of manufacturing blunt tip surgical needles. Taper point needles having conventional piercing tips are placed into a vessel containing a grinding media. The needles are maintained in the vessel for a sufficient amount of time to convert the pierc... | 02/11/1997 |
| 5507685 | Method for surface finishing of difficult polish surfaces A method for finishing a surface of a workpiece, having the steps of agitating the workpiece with a first mixture including a first plurality of discrete, homogeneous compressed felt chunks having a first particulate abrasive coating thereon, and then agi... | 04/16/1996 |
| 5460566 | Vibrating abrasive cleaning apparatus and method This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by a hydraulic drive motor mounted to a square tubing frame which is housed within an enclosure that is vibrated by an eccentric shaft assembly directly coupled ... | 10/24/1995 |
| 5140783 | Method for surface finishing of articles A method for mechanically finishing parts having the step of agitating a plurality of parts to be finished in contact with a plurality of discrete substantially homogeneous compressed felt chunks having a particulate abrasive material coating thereon.... | 08/25/1992 |
| 5015299 | Method and apparatus for the removal of deposits from the inner surfaces of horizontal cylinders Process and apparatus are provided for the removal of a deposit from the inner surface of a rotating cylinder having a horizontal or inclined longitudinal axis, which comprises introducing a body having a substantially symmetrical concavo-convex silhouett... | 05/14/1991 |
| 4800605 | Buffing apparatus Apparatus and method for buffing articles, such as leather goods, silverware and the like. The apparatus includes a flexible container for receiving an article to be buffed. The interior of the container has a buffing material therein and is of a size to ... | 01/31/1989 |
| 4736547 | Steel abrading elements for mass finishing of workpieces and methods of making and using same An abrading element for mass finishing of workpieces such as vibratory finishing comprises an elongated metallic rod of generally circular or other curvilinear cross section with serrations extending over substantially its entire periphery along its elong... | 04/12/1988 |
| 4712333 | Tumbling media A tumbling media element for use in tumbling non-magnetic workpieces includes a body portion formed of a non-magnetic material and a magnetic insert disposed within the body portion. The insert renders the body portion suitable for magnetic sorting techni... | 12/15/1987 |
| 4691400 | Article buffing apparatus and method Apparatus and method for buffing articles, such as leather goods, silverware and the like. The apparatus includes a container for receiving an article to be buffed. The interior of the container has a buffing material therein and is of a size to permit re... | 09/08/1987 |
| 4566144 | Apparatus for buffing articles Apparatus for buffing articles, such as leather goods, silverware and the like. The apparatus includes a container for receiving an article to be buffed. The interior of the container has a buffing material therein and is of a size to permit relative move... | 01/28/1986 |
