Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1979-01-26
1981-06-02
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
126448, 264 26, 264 81, 264 83, 264558, 264561, 264565, 264566, 264177R, 425 72R, 4253261, B29C 1707, B29D 2304
Patent
active
042711037
ABSTRACT:
A method and apparatus for extruding a radiant energy heat exchanging panel structure having a multiplicity of parallel passages extending longitudinally therethrough defined by a multiplicity of longitudinally extending integrally interconnected exterior and interior thin wall sections, in which the temperature of the plastic material moving longitudinally away from the extrusion outlet is reduced by flowing fluid into said passages and on the exterior sides thereof, by contacting the exterior sides with pairs of cooled rollers, by rolling a liquid medium upon the operative exterior side, and by flowing a liquid spray thereon to provide a radiation absorbing coating on the exterior side of the panel structure opposite from the operative side thereof. Certain of the flowing fluids are reactant fluids which chemically react with the hot plastic material or condense thereupon to form molecular coatings thereon enhancing the properties thereof as a panel structure.
REFERENCES:
patent: 3038202 (1962-06-01), Harkenrider
patent: 3274315 (1966-09-01), Kawamura
patent: 3668288 (1972-06-01), Takahashi
patent: 3764245 (1973-10-01), Miyamoto
patent: 3792951 (1974-02-01), Meyers
patent: 3812230 (1974-05-01), Takahashi
patent: 3825641 (1974-07-01), Barnett
patent: 4113411 (1978-09-01), Terragni
patent: 4181487 (1980-01-01), Kessler
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