Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Patent
1993-10-26
1995-10-10
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
264556, 156167, 15624411, D04H 302
Patent
active
054568765
ABSTRACT:
A multiplicity of closely spaced thermoplastic polymer filaments are extruded from an elongated orifice plate through a draft protected free-fall zone onto a rotating cylinder surface, landing between about 30.degree. before and after upper dead center of rotation. Filament extrusion velocity and cylinder rotational velocity are coordinated to pile the filament into a mat continuum of accumulated filament laps. Filament temperature and viscosity are coordinated to provide thermoplastic bonding at the filament lap crossings to integrate the continuum. The rotating cylinder carries the matted continuum over an arc of about 150.degree. to 210.degree. to about lower dead center of rotation where the mat peels from the cylinder surface. After separation from the cylinder surface, the mat is supported by a transitional air jet on to a horizontal run surface of a traveling endless belt for consolidated support until the lap crossing bond joints are securely set.
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Oaks David K.
Redwine Stephen J.
Kuhns Allan R.
Plastic Floor Mats Inc.
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