Appeal No. 2002-1666
Application 09/394,289
held or having the option of being either hand-held or
robotically-held for use with a portable system” (specification,
page 1).1 Representative claim 1 reads as follows:
1. A portable convergent miniaturized spray gun including a
handle, said spray gun having a central passage for flowing
liquid resin and a concentric passage relative to the central
passage for flowing pressurized air, and a nozzle internal of
said spray gun for discharging the liquid resin from the central
passage, a double concentric tube assembly having an additional
central passage in axial alignment with said central passage for
receiving resin from said internal nozzle, an additional
concentric passage relative to said central passage in axial
alignment with said concentric passage, a fluid tip mounted on
the end of said additional central passage defining a central
orifice for discharging the resin flowing from said central
passage and said additional central passage, an air cap mounted
over said fluid tip and defining with said fluid tip an air
nozzle for flowing air into said resin stream discharging from
said central orifice and defining an atomized convergent spray
having a low pressure zone, said fluid tip including a circular
shaped member abutting the inner surface of said air cap and
having flats formed thereon to define gaps between said air cap
and said circular shaped member to allow air from said concentric
passage to flow therebetween and mix with the resin to atomize
the resin flowing out of said central passage and a dry powdered
nozzle having angled flow passages for directing dry powder into
the low pressure zone of said atomized convergent spray.
1 The appellants’ disclosure contains an unusually high
number of inconsistencies between the specification and the
drawings.
2
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