# US 10,478,850 B2 · Powder cup spray gun and spray-coating device comprising a powder cup spray gun > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,478,850 B2 - Document ID: US10478850B2 - Status: Granted - Kind: B2 - Application number: 13/858,957 - Filed: 2013-04-09 - Published: 2013-10-17 - Granted: 2019-11-19 - Earliest claimed: 2012-04-13 - Assignees: Wagner International AG - Applicants: J. Wagner AG - Inventors: Thomas Schwarz; Rene Schmid; Gilbert Lutz; Karsten Juterbock; Pierre Plascar - Web page: https://patentgrep.com/patent/US10478850B2 ## CPC - B05C 11/10: Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material {(B05C1/0813, B05C5/0225, B05C17/002 and B05C19/06 take precedence)} - B05B 5/032: {for spraying particulate materials} - B05B 5/1683: {specially adapted for particulate materials} - B05B 5/1691: {Apparatus to be carried on or by a person or with a container fixed to the discharge device} - B05B 7/1413: {Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device} - B05B 7/2408: {characterised by the container or its attachment means to the spray apparatus} - B05B 7/2478: {Gun with a container which, in normal use, is located above the gun} - B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08) - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract At the rear end, the powder cup spray gun has an injector, a powder cup and a receptacle for the powder cup. The powder inlet of the injector is connected to the receptacle. The powder cup and the receptacle are designed in such a way that the powder cup can be fitted into the receptacle. In addition, a grip with a connection for conveying air, a connection for atomising air, and a connection for metering air is provided. The connection for the conveying air and the connection for the metering air are connected to the injector via lines running in the grip. ## Claims ### Claim 1 A powder cup spray gun, comprising: a housing at a rear end of which an injector with a powder inlet is included, a grip for the housing, the grip including a trigger for activating the spray gun, and a funnel-shaped powder cup and a receptacle for the powder cup, wherein the powder inlet of the injector is connected to the receptacle, wherein the powder cup and the receptacle have a fitted connection therebetween so that the powder cup can be slidably engaged with the receptacle, wherein the grip for the housing is included with a connection for conveying air, a connection for atomising air and a connection for metering air that are each arranged outside a body of the grip and extending from a lower end of the grip, wherein the grip houses a plurality of compressed air lines, and each of the connection for the conveying air and the connection for the metering air are connected to the injector via the compressed air lines housed in the grip and running from the lower end of the grip to the injector. ### Claim 2 (depends on 1) The powder cup spray gun according to claim 1, wherein the housing is configured so that the injector can be unscrewed from the outside. ### Claim 3 (depends on 1) The powder cup spray gun according to claim 1, further comprising a ring seal in the receptacle for the powder cup. ### Claim 4 (depends on 3) The powder cup spray gun according to claim 3, further comprising a further ring seal provided in the receptacle for the powder cup. ### Claim 5 (depends on 1) The powder cup spray gun according to claim 1, further comprising: a powder line, and a metering air duct, which discharges annularly into the powder line. ### Claim 6 (depends on 1) The powder cup spray gun according to claim 1, wherein the injector includes a driving nozzle and a collector nozzle, wherein the driving nozzle has a driving nozzle duct, and the collector nozzle has a mixing tube portion, and wherein the ratio between the diameter of the driving nozzle duct dl and the inner diameter of the mixing tube portion d2 is in the range between 1.9 and 2.5. ### Claim 7 (depends on 1) A powder cup for a powder cup gun according to claim 1, wherein a side wall of the powder cup is funnel-shaped. ### Claim 8 (depends on 7) The powder cup according to claim 7, wherein a powder outlet is included which is tubular. ### Claim 9 (depends on 7) The powder cup according to claim 7, further comprising: a lid with a separable cap, wherein the cap is configured so that it is suitable for closing the powder outlet. ### Claim 10 (depends on 1) A spray-coating device comprising a powder cup gun according to claim 1, including a control unit configured to control the conveying air, the atomising air and the metering air, compressed air tubes which connect the control unit to the connection for the conveying air, to the connection for the metering air, and to the connection for the atomising air of the powder cup gun.