Abstract

A resin bonded super abrasive tool. The tool is manufactured using a liquid 3D light cured solution printer (3D printing which uses a liquid resin super abrasive and secondary fillers). The liquid resin is mixed with effective amounts of the super abrasive material and secondary fillers, and they are co-deposited and cured by printer during the 3D printing process.

IPC Classes  ?

• C04B 35/532 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
• C04B 35/565 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide
• C04B 35/626 - Preparing or treating the powders individually or as batches
• C04B 35/634 - Polymers
• C04B 35/638 - Removal thereof
• C04B 35/64 - Burning or sintering processes
• B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
• B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
• B29C 64/30 - Auxiliary operations or equipment
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing

Abstract

A process for retruing a profile in an abrasive wheel is provided. A lathe table including an edged cutting tool is used for fixturing a grinding wheel having an outside metal edge and an abrasive matrix adjacent thereto for rotation along an axis compatible for lathe removal of material at at least the outside edge of said wheel. A predetermined amount of material along said edge with the edged lathe cutting tool is removed using the lathe cutting tool. A rotating electrical discharge profiling tool which is attached to an electrical discharge machine is used for profiling of the wheel by electrical discharge machining of the abrasive surface with the rotating electrode. The process uses a machine specifically designed for electrical discharge machining of the profile. The machine also has a mechanism cutting a predetermined profile into the electrode without removing it from the machine.

IPC Classes  ?

• B23H 9/00 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
• B23H 11/00 - Auxiliary apparatus or details, not otherwise provided for
• B24B 53/00 - Devices or means for dressing or conditioning abrasive surfaces

Abstract

A process for retruing a profile in an abrasive wheel is provided. A lathe table including an edged cutting tool is used for fixturing a grinding wheel having an outside metal edge and an abrasive matrix adjacent thereto for rotation along an axis compatible for lathe removal of material at at least the outside edge of said wheel. A predetermined amount of material along said edge with the edged lathe cutting tool is removed using the lathe cutting tool. A rotating electrical discharge profiling tool which is attached to an electrical discharge machine is used for profiling of the wheel by electrical discharge machining of the abrasive surface with the rotating electrode. The process uses a machine specifically designed for electrical discharge machining of the profile. The machine also has a mechanism cutting a predetermined profile into the electrode without removing it from the machine.

IPC Classes  ?

• B24B 53/00 - Devices or means for dressing or conditioning abrasive surfaces
• B23H 7/12 - Rotating-disc electrodes
• B23H 9/02 - Trimming or deburring
• B24B 5/00 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor
• B24B 53/047 - Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels equipped with one or more diamonds
• B23H 1/04 - Electrodes specially adapted therefor or their manufacture

Abstract

Process for manufacture of a dental burr including a brazed diamond grit working surface comprising the steps of: a. providing a vacuum induction furnace and a graphite insert which is tuned to be heated at a predetermined frequency in the induction furnace, said graphite insert including a sub chamber configured for receiving at least one dental burr; b. providing a dental burr blank including a shaft portion and a working head portion; c. providing a synthetic diamond abrasive grit material, which is unprocessed for removal of ferromagnetic properties, mixture with a temporary green binder which adheres to the burr substrate and coating the working head portion with the mixture; d. placing the coated burr into the graphite insert sub chamber and heating the graphite insert to 910 to 990° C.; and e. heating the coated burr in the chamber under a vacuum for forming a diamond burr with a brazed diamond grit working surface.

IPC Classes  ?

• B24D 3/06 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic
• B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for
• A61C 3/02 - Tooth drilling or cutting instrumentsInstruments acting like a sandblast machine

Abstract

A dental burr and process of manufacture having a synthetic diamond grit abrasive portion. The dental burr includes a dental burr tool substrate including a shaft portion and a working portion. The working portion contains on its outer surface a synthetic diamond abrasive grit cutting surface. The synthetic diamond is brazedly attached to the surface.

IPC Classes  ?

• A61C 3/02 - Tooth drilling or cutting instrumentsInstruments acting like a sandblast machine

Abstract

The present invention relates to a beveling wheel and method for forming a beveled lens with the beveling wheel for use with eyeglasses. One embodiment includes a prescription lens for use on an eyeglass frame having a receiving channel. The receiving channel includes a channel bottom and opposed interior wall surfaces having a first angle therebetween. The prescription plastic lens includes a prescription lens body generally defined by a peripheral edge having a bevel extending away from the edge to a vertex. The bevel has a distal portion with a second angle. The bevel is receivable within the receiving channel. At least a portion of the vertex of the bevel has an interference fit with the receiving channel bottom when held within the eyeglass frame. The first angle is greater than the second angle.

IPC Classes  ?

• G02C 13/00 - AssemblingRepairingCleaning
• G02C 7/02 - LensesLens systems
• B24B 9/14 - Machines or devices designed for grinding edges or bevels on work or for removing burrsAccessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
• B24D 5/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor
• G02C 1/06 - Bridge or browbar secured to, or integral with, closed rigid rims for the lenses

Abstract

A segmented profiled wheel for grinding a glass or non-metallic workpiece including a segmented abrasive portion formed of a plurality of abrasive segments that are attached to a core of the wheel and method for making same. The plurality of abrasive segments have a cutting surface profile and sufficient abrasive grit to contour and grind the workpiece. Terminal ends of the plurality of abrasive segments are adjacent to one another and the cutting surface profiles align to form a substantially continuous rim of profiled abrasive segments for substantially continuous contact with a workpiece while the wheel rotates. The method includes the steps of forming the plurality of abrasive segments having a metal bonding matrix using automated processes, machining a metal blank to form a core, and attaching the plurality of abrasive segments to the core by laser welding and/or brazing.

IPC Classes  ?

• B24D 5/06 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor with inserted abrasive blocks, e.g. segmental
• B24D 5/12 - Cut-off wheels
• B24D 5/16 - BushingsMountings
• B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for

Abstract

The present invention relates to a beveling wheel and method for forming a beveled lens with the beveling wheel for use with eyeglasses. One embodiment includes a prescription lens for use on an eyeglass frame having a receiving channel. The receiving channel includes a channel bottom and opposed interior wall surfaces having a first angle therebetween. The prescription plastic lens includes a prescription lens body generally defined by a peripheral edge having a bevel extending away from the edge to a vertex. The bevel has a distal portion with a second angle. The bevel is receivable within the receiving channel. At least a portion of the vertex of the bevel has an interference fit with the receiving channel bottom when held within the eyeglass frame. The first angle is greater than the second angle.

IPC Classes  ?

• G02C 13/00 - AssemblingRepairingCleaning

Goods & Services

Neutralizers used in the ophthalmic industry, namely, chemical product for neutralizing ophthalmic lens materials; heat transferors, namely, heat transferor fluids for industrial use; coolants, defoamers, namely, coolants and defoamers for industrial use Chemical products used in the ophthalmic industry in the nature of optical tints and dyes, namely, optical ultraviolet inhibitor and scratch resistant coatings Eyeglass lens cleaning solutions; ink removers used in the ophthalmic industry

Goods & Services

Neutralizers used in the ophthalmic industry, namely, chemical product for neutralizing ophthalmic lens materials; heat transferors, namely, heat transferor fluids for industrial use; coolants for industrial use; defoamers for industrial use, namely, chemical additives for use in the manufacture of ophthalmic lenses Chemical products used in the ophthalmic industry in the nature of optical tints and dyes, namely, optical ultraviolet inhibitor and scratch resistant coatings Eyeglass lens cleaning solutions; ink removers used in the ophthalmic industry

Goods & Services

Power-operated tools used in the ophthalmic industry, namely, grinders, saws, and grinder accessories, namely, grinding bits, blades, wheels and core drills; Power-operated glass cutting and working tools used in the ophthalmic industry, namely, glass cutting bits, glass drilling bits, glass cutting wheels, and glass grinding wheels

Goods & Services

Power-operated grinding machines; and superabrasive grinding wheels, namely, bevel edging wheels, flycutter wheels, and generator wheels, for grinding ophthalmic lens materials, composite materials, and glass, metallic, and non-metallic materials; and parts for power-operated grinding machines, namely, polishing and grinding pads, lens cutters, wobble assemblies for lens grinding machines, and pattern blanks