MODULAR FLUID SPRAY GUN

WIPO Patent Application WO2001066261

A3

A modular spray gun that can be configured and built to operate using a selectable spray process. The modular spray gun includes a gun body, an extension and a selectable spray atomizing component. The basic gun body and extension are used to configure a spray gun that can operate as an air spray gun, an airless spray gun, an AAA gun or a HVLP spray gun. The modular extension can be selected to allow circulating or non-circulating operation. The modular extension also permits a variety of spray nozzle assemblies to be mounted thereon depending on the selected spray process to be used with the specific gun. The modular gun body allows selective connection of an atomizing air supply and additional components specific to a particular spray process. An indicator device and/or a relief valve is provided for spray guns using an HVLP spray process to provide an indication that the spray gun is in compliance with the maximum nozzle air pressure limit, usually less than 10 psi. A new air valve seal assembly is also provided. The modular gun design can accommodate electrostatic and non-electrostatic versions.

HARTLE RONALD J (US)
MANCINI DAVID L (US)
EHRNSCHWENDER GEORGE C (US)

PCT/US2001/007485

December 05, 2002

March 09, 2001

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NORDSON CORP (US)
HARTLE RONALD J (US)
MANCINI DAVID L (US)
EHRNSCHWENDER GEORGE C (US)

B05B1/30; B05B1/32; B05B5/025; B05B5/053; B05B7/02; B05B7/06; B05B7/12; B05B7/24; B05B9/01; B05B12/00; B05B5/03; B05B7/00; B05B7/08; B05B12/08; (IPC1-7): B05B7/02; B05B5/053

WO2000023196A2

2000-04-27

US4702420A	1987-10-27
US4361283A	1982-11-30
US5183322A	1993-02-02
US4005824A	1977-02-01
EP0477008A2	1992-03-25
EP0775528A2	1997-05-28
US3008645A	1961-11-14

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