# US 8,771,041 B2 · Scraper and sandblaster assembly and methods of use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,771,041 B2 - Document ID: US8771041B2 - Status: Granted - Kind: B2 - Application number: 13/135,294 - Filed: 2011-06-30 - Published: 2013-01-03 - Granted: 2014-07-08 - Earliest claimed: 2011-06-30 - Applicants: Theodosios Kountotsis; Agjah Libohova - Inventors: Theodosios Kountotsis; Agjah Libohova - Web page: https://patentgrep.com/patent/US8771041B2 ## CPC - B24C 5/02: Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials {(perforating by fluid jet B26F1/26)} - 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 9/00: Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material - B24C 11/00: Selection of abrasive materials {or additives} for abrasive blasts (polishing compositions C09G) - B24C: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL ## Abstract A scraper and sandblaster assembly including a sandblaster and a scraper is presented. The sandblaster has a gun-like configuration, including a handle portion having a trigger mechanism; an air inlet portion operably coupled to the handle portion and to an air supply source; a nozzle portion distally disposed with respect to the handle portion; and a granular particle container mounted thereon for holding granular particles. The scraper is in cooperative engagement with the sandblaster, the scraper configured to operate concurrently or simultaneously with the sandblaster. The assembly also includes a debris collection cover encompassing at least a distal portion of the sandblaster and the scraper, the debris collection cover supported on the nozzle portion of the sandblaster. ## Claims ### Claim 1 A scraper and sandblaster assembly, comprising: a sandblaster having a gun-like configuration, the sandblaster including: a handle portion having a trigger mechanism; an air inlet portion operably coupled to the handle portion and to an air supply source; a nozzle portion distally disposed with respect to the handle portion; a debris collection cover positioned at a distal end of the sandblaster; and a granular particle container mounted thereon for holding granular particles; and a flat-bladed scraper extending at least partially within the debris collection cover of the sandblaster, the scraper configured to operate concurrently with the sandblaster. ### Claim 2 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the debris collection cover supported on the nozzle portion of the sandblaster. ### Claim 3 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the debris collection cover is configured to facilitate recycling of at least a portion of the granular particles dispensed from the granular particle container via the air supply source. ### Claim 4 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the debris collection cover includes a compressible portion configured to deflect in opposed relation to a direction of expulsion of the granular particles dispensed from the nozzle portion of the sandblaster via the air supply source. ### Claim 5 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein a distal end of the scraper extends beyond the debris collection cover. ### Claim 6 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein a proximal end of the scraper is positioned outside a periphery of the debris collection cover. ### Claim 7 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the granular particles are at least one of sand, steel grit, steel shot, copper slag, coal slag, walnut shells, coconut shells, powdered quartz, emery, chilled iron globules, glass beads, corn cob, pumice, crushed glass grit, silicon-carbide grit, aluminum-oxide, staurolite minerals, powdered abrasives, and plastic abrasives or a combination thereof. ### Claim 8 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the scraper is releasably detachable to the sandblaster. ### Claim 9 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein a head portion of the scraper is releasably detachable to the scraper. ### Claim 10 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the nozzle portion includes a plurality of nozzles configured for selective or collective activation. ### Claim 11 (depends on 10) The scraper and sandblaster assembly according to claim 10, wherein each of the plurality of nozzles is dimensioned and adapted to have different cross-sections to enable different dispersal rates of the granular particles. ### Claim 12 (depends on 1) The scraper and sandblaster assembly according to claim 1, wherein the granular particle container includes a plurality of separate and distinct chambers, each chamber including a different granular particle. ### Claim 13 (depends on 12) The scraper and sandblaster assembly according to claim 12, wherein the handle portion includes at least one actuation mechanism for selectively or collectively enabling dispensement of the different granular particles. ### Claim 14 A method of abrading a surface, the method comprising: providing a sandblaster having a gun-like configuration, the sandblaster including: a handle portion having a trigger mechanism; an air inlet portion operably coupled to the handle portion and to an air supply source; a nozzle portion distally disposed with respect to the handle portion; a debris collection cover positioned at a distal end of the sandblaster; and a granular particle container mounted thereon for holding granular particles; a flat-bladed scraper extending at least partially within the debris collection cover of the sandblaster; and concurrently operating the flat-bladed scraper with the sandblaster. ### Claim 15 (depends on 14) The method according to claim 14, further comprising the steps of: supporting the debris collection cover on the nozzle portion of the sandblaster; and facilitating recycling of at least a portion of the granular particles dispensed from the granular particle container via the air supply source. ### Claim 16 (depends on 14) The method according to claim 14, further comprising the steps of: constructing the granular particle container as a plurality of separate and distinct chambers, each chamber including a different granular particle; and selectively or collectively dispensing the different granular particles via an actuation mechanism. ### Claim 17 A sandblaster assembly, comprising: a handle portion including a nozzle at a distal end thereof; an air inlet portion operably coupled to the handle portion and to an air supply source; a debris collection cover positioned in a vicinity of the nozzle; and a flat-bladed scraper extending at least partially within the debris collection cover to operate concurrently with the sandblaster. ### Claim 18 (depends on 17) The sandblaster assembly according to claim 17, wherein the sandblaster assembly further includes a granular particle container mounted thereon for holding granular particles. ### Claim 19 (depends on 18) The sandblaster assembly according to claim 18, wherein the granular particle container includes a plurality of separate and distinct chambers, each chamber including a different granular particle. ### Claim 20 (depends on 19) The sandblaster assembly according to claim 19, wherein the handle portion includes at least one actuation mechanism for selectively or collectively enabling dispensement of the different granular particles.