# US 2014/0193582 A1 · Method for treating a hollow glass article comprising a coating and a facility for implementing the method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193582 A1 - Document ID: US20140193582A1 - Status: Published application - Kind: A1 - Application number: 14/235,117 - Filed: 2011-07-29 - Published: 2014-07-10 - Earliest claimed: 2011-07-29 - Assignees: Saverglass Inc. - Inventors: Loïc Quentin De Gromard - Web page: https://patentgrep.com/patent/US20140193582A1 ## CPC - C03C 17/003: {for hollow ware, e.g. containers} - B24C 1/04: for treating only selected parts of a surface, e.g. for carving stone or glass - B24C 1/086: {Descaling; Removing coating films} - B24C 3/12: Apparatus using nozzles - B24C 3/32: designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks (B24C3/08, B24C3/18 take precedence) - B24C 9/006: {Treatment of used abrasive material} - B24C 11/00: Selection of abrasive materials {or additives} for abrasive blasts (polishing compositions C09G) - B44C 1/221: {using streams of abrasive particles} - C03C 17/005: {Coating the outside} - C03C 19/00: Surface treatment of glass, not in the form of fibres or filaments, by mechanical means (sand-blasting, grinding, or polishing glass B24) - C03C 23/0075: {Cleaning of glass (specially adapted to plate glass B08B11/00)} - C03C 2218/328: Partly or completely removing a coating - C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS - B24C: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL - B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)} ## Abstract According to a method for treating a hollow glass article (2) comprising a coating (21), a flow (F) of abrasive material (A) in the form of organic solid particles is projected against the article (2) to at least partially remove the coating (21). Facility for implementing the method. ## Claims ### Claim 1 A method for treating a hollow glass article comprising a coating, wherein a flow of abrasive is sprayed in the form of solid organic particles against the article to remove the coating at least in part. ### Claim 2 (depends on 1) The treatment method according to claim 1, wherein the abrasive is of plant origin. ### Claim 3 (depends on 2) The treatment method according to claim 2, wherein the abrasive is formed of a material comprising at least one of a polysaccharide, starch in vitrified form, and crushed nut shells. ### Claim 4 (depends on 1) The treatment method according to claim 1, wherein the coating of the article is organic. ### Claim 5 (depends on 1) The method according to claim 1, wherein the glass article comprises a coating underlying the first coating and of greater hardness, wherein the first coating is removed at least in part to expose the underlying coating. ### Claim 6 (depends on 1) A method for decorating a glass article wherein a coating is applied to the article, wherein treatment is performed according to the method of claim 1, a mask being inserted between the article and the flow of abrasive so as to preserve the coating behind the mask and remove the coating elsewhere. ### Claim 7 (depends on 6) The decorating method according to claim 6, wherein the glass article comprises frosted surfaces before the application of a colored coating onto at least one portion of said surfaces, the coating then being removed from at least one portion of the frosted surfaces. ### Claim 8 (depends on 6) The decorating method according to claim 6, wherein the glass article has a smooth surface and the coating has a frosted appearance. ### Claim 9 (depends on 1) A method for cleaning a glass article wherein the article comprises a coating and the entirety of the coating is removed using the method according to claim 1. ### Claim 10 (depends on 1) The method according to claim 1, wherein a nozzle for spraying abrasive is fed at a pressure of between 1.5 and 3.5 bars. ### Claim 11 (depends on 1) The method according to claim 1, wherein the flow of abrasive is oriented relative to the surface of the article at an angle of between 60 and 90°. ### Claim 12 (depends on 1) The method according to claim 1, wherein a nozzle outlet for the flow of abrasive is positioned at a distance from the surface of the article of between 20 and 250 mm. ### Claim 13 (depends on 3) The method according to claim 3, wherein, the abrasive is starch in vitrified form, the particle size of the abrasive is such that 90% of the particles have a size of between 200 and 850 μm. ### Claim 14 (depends on 1) The method according to claim 1, wherein the flow of abrasive has an intensity of between 25 and 250 kg/m2/s on leaving the nozzle. ### Claim 15 A facility for treating a glass article comprising grasping means to grasp the article, means for feeding abrasive in the form of solid particles and means for spraying a flow of said particles against the glass article, the feed means comprising a system for recovering the abrasive after spraying, the recovery system comprising a filtering device to remove the coarsest and finest particles, the feed system comprising a dispensing device to supply new abrasive to compensate for the material removed by the filtering device. ### Claim 16 (depends on 15) The facility according to claim 15, wherein the recovery system comprises scales to weigh the material removed by the filtering device, the dispensing device being driven also as a function of the data provided by the scales. ### Claim 17 (depends on 15) The facility according to claim 15, further comprising a dedusting station to dedust the article and the tooling. ### Claim 18 (depends on 15) The facility according to claim 15, wherein the spray means comprise at least one nozzle and allow relative movement of the nozzle and of the article during the spraying operation of abrasive.