Class / Patent application number | Description | Number of patent applications / Date published |
125300010 | PRECIOUS STONE WORKING | 14 |
20090320820 | GEMSTONE WATERBATH DRILL - A gemstone drill is of the drill press type which includes a motor suspended and slidably affixed between upstanding vertical telescoping rods. A drill bit is affixed to a spindle which is a direct extension of the motor shaft which is in parallel alignment with the rods. A body of the motor includes a cylindrical spindle housing extending downwardly from the bottom of the motor body adjacent the drill bit. The rods are extensible from tower sleeves mounted directly to a base which has a top support surface enclosed by a transparent containment cover. The door is moveable between open and closed positions to gain access to a clamping mechanism releasably attached to the support surface that holds the stone to be drilled. The containment cover, when closed, includes a circular aperture at the top which closely receives the spindle housing. | 12-31-2009 |
20100000507 | ANGLE CUT ON CVD DIAMOND - A cut gemstone has one or more backside grooves cut into backside facets to form sub facets that operate to increase the brilliance of the cut gemstone. | 01-07-2010 |
20100059034 | GEMSTONE PRODUCTION FROM CVD DIAMOND PLATE - A method of producing gemstones includes obtaining a plate of chemical vapor deposition formed diamond. The plate is cut into a plurality of geometrically optimized preforms. The preforms may be finished and cut into diamond gemstones. | 03-11-2010 |
20100282234 | ORNAMENTAL DIAMOND HAVING TWO-STAGE PAVILION - An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. The second pavilion is an octagonal pyramid and its side faces form second pavilion main facets. The first pavilion is a hexadecagonal frustum with a top face on the horizontal division plane and its side faces form first lower girdle facets. First pavilion main facets extend from the girdle and between the first lower girdle facets, into between the second pavilion main facets. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut. | 11-11-2010 |
20110126815 | METHOD OF STABILIZING OPALS - The present invention protects opals during processing from rhyolite nodules. An opal containing rhyolite nodule is soaked in a heated polyester resin, styrene (100-42-5) solution for 24 hours per 10 grams of nodule. The rhyolite nodule is dried and sawed into slabs, which are soaked in a heated polyester resin, styrene (100-42-5) solution. The soaked slabs are cut into pieces, cabochons are marked out, and the pieces are rough cut into pre forms. The pre forms are soaked in a heated polyester resin, styrene (100-42-5) solution, beneficially for 24 hours. The pre forms are dried and cut into cabochons, which are soaked (preferably for 24 hours) in a heated polyester resin, styrene (100-42-5) solution. The soaked cabochons are then dried, polished, and air cured. | 06-02-2011 |
20120111310 | TARGET OBJECT PROCESSING METHOD AND TARGET OBJECT PROCESSING APPARATUS - There is provided a target object processing method capable of self-breaking a target object with a laser beam. The target object processing method includes: generating a laser beam from a laser beam source; correcting a divergence angle of the generated laser beam; and forming a spot by condensing the corrected laser beam to the inside of the target object. A shape or a size of the spot is adjusted by correcting the divergence angle of the laser beam, a phase transformation area is formed within the target object by the spot, and the target object is subject to self-breaking with the phase transformation area as the starting point. | 05-10-2012 |
20120298092 | METHOD FOR PRODUCING GEMSTONES FROM SILICON CARBIDE - A method of producing gemstones from silicon carbide comprises growing simultaneously a plurality of moissanite crystal blanks in a graphite mold, splitting up the blanks into individual crystals, and faceting same. The plurality of grown blanks can be subjected to annealing to facilitate splitting. Faceting can comprise rough cutting, grinding and polishing. Prior to faceting, the blanks are attached to a mandrel with one side thereof. After faceting, the blanks are attached to a mandrel with their reverse side, and faceting is repeated. It is ensured that the depth of scratches be less than the length of a light wave in the visible part of the spectrum. The cut and cleaved edges and defective blanks unsuitable for faceting are pulverized and returned to the stage of growing. | 11-29-2012 |
20130192579 | GEMSTONE PRODUCTION FROM CVD DIAMOND PLATE - A method of producing gemstones includes obtaining a plate of chemical vapor deposition formed diamond. The plate is cut into a plurality of geometrically optimized preforms. The preforms may be finished and cut into diamond gemstones. | 08-01-2013 |
20140076299 | MULTI-STEP CUTTING PROCESS - Methods related to efficient processing of sapphire are discussed which are expected to both speed manufacture of corundum for applications and make the use of conundrum cost effective. In particular, one embodiment may take the form of a method of cutting a hard transparent material having a polished surface. The method includes roughening the polished surface, directing a laser beam at the hard transparent material to melt the material and removing the melted hard material. | 03-20-2014 |
20140246006 | GEMSTONE PROCESSING - An indexing unit of a gemstone processing machine and a method for processing gemstones is described herein. In an embodiment, the indexing unit of the gemstone processing machine includes a base plate having a plurality of axially extending holes. The base plate is mounted on a mounting shaft, and the mounting shaft is coupled to an indexing mechanism for actuating the base plate. Further, the indexing unit includes a plurality of holders. A holder is disposed in each of the plurality of axially extending holes of the base plate, and each holder is configured to hold a gemstone for processing on the gemstone processing machine. | 09-04-2014 |
20140290638 | GEMSTONE AND METHOD FOR CUTTING THE SAME - The invention relates to a gemstone ( | 10-02-2014 |
20150090245 | METHOD AND APPARATUS FOR PROCESSING SAPPHIRE - A method of producing a sapphire product from a suitable precursor material is disclosed. The method comprising the steps of placing a sapphire product precursor on a support apparatus of a crystalline material processing assembly further comprising at least one cutting tool and two or more x-ray module fixedly positioned around the product precursor. The support apparatus can be tilted and rotated in order to align the crystalline plane orientations to a fixed cutting direction, and the sapphire product can be produced by cutting in that direction. | 04-02-2015 |
20150375421 | GEMSTONE PROCESSING - The present subject matter relates to an indexing unit for a gemstone processing machine. The indexing unit may include a base plate that may comprise a plurality of plates. Further, the base plate may be coupled to an indexing mechanism such that the indexing mechanism may impart rotational, translational, and tilting motion to the base plate. Further, the plurality of plates may include axially extending concentric holes in which a plurality of holders may be disposed. Further, the plurality of holes may hold the gemstone for processing. In one implementation, the plurality of holders may be coupled to one or more actuating mechanisms that may impart rotational, translational, and tilting motion to the individual holders. | 12-31-2015 |
20160130726 | Method for manufacturing N-type semiconductor element for cooling or heating device - Disclosed is a method for manufacturing N-type semiconductor element for cooling or heating device, the N-type semiconductor element is made of tellurium, bismuth and selenium material, firstly, smashing and grinding the tellurium, bismuth and selenium material to be 2000 meshes or more; and then, according to the proportion of each material in parts by weight, proportioning the materials to obtain a mixture, the proportion thereof is: 40 to 44 parts of tellurium, 53 to 57 parts of bismuth and 28 to 32 parts of selenium. During operation, the temperature difference between the two ends thereof is larger, and through a test, the temperature difference between the cold end and the hot end reaches about 73° C. to 78° C. Therefore, the N-type semiconductor element has the advantages of high operation efficiency and lower energy consumption. The N-type semiconductor element is particularly suitable for manufacturing a semiconductor cooling or heating device. | 05-12-2016 |