Rotating spray head for spray urethane

Details Rotating spray head for spray urethane Rotating spray head for spray urethane

2006-07-04

2006-07-04

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

C239S008000, C239S290000, C239S293000, C239S398000, C239S452000

Reexamination Certificate

active

07070120

ABSTRACT:
A system and method for spray application of polyurethane used to spray form an article is disclosed. A spray nozzle is rotated as the polyurethane composition is sprayed onto a mold surface to apply a swath of polyurethane to the mold surface. The spray nozzle may be of an internal mixing or external mixing type that is moved relative to a mold surface in a path to create a skin layer with multiple partially overlapping swaths being applied in multiple passes. A motor and gear drive are used to rotate the nozzle tip and associated structure.

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