Fluid sprinkling – spraying – and diffusing – Flow line or nozzle attached or carried handgrip or handle
Reexamination Certificate
2007-07-24
2007-07-24
Hwu, Davis (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Flow line or nozzle attached or carried handgrip or handle
C239S526000, C239S345000, C239S417300, C239S527000, C239S600000
Reexamination Certificate
active
10887698
ABSTRACT:
Modular spray gun apparatus and methods are disclosed. In one embodiment, an apparatus includes a handle module and a head module that is removeably coupled to the handle module. The head module includes a first housing having an inlet adapted to be coupled to a source of pressurized gas, a flow passage extending between the inlet and an outlet, and a first coupling member proximate the outlet. Similarly, the head module includes a second housing having a second coupling member removeably coupled to the first coupling member of the first housing, a nozzle fluidly communicating with a spray outlet, and a needle assembly operatively associated with the nozzle to control a flow of liquid material and pressurized gas emanating from a mixing passage through the nozzle.
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Dorsey & Whitney LLP
Hwu Davis
Trade Associates, Inc.
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