Shrinking apparatus

Details Shrinking apparatus Shrinking apparatus

1988-07-19

1990-01-16

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219343, 219405, 219411, F27B 906, F27D 1100

Patent

active

048945170

ABSTRACT:
Shrinking apparatus for heating and shrinking articles such as disused molded articles of thermoplastic expanded resin by a plurality of far-infrared heaters, thereby to reduce the articles in bulk. In the shrinking apparatus, the distances between article conveying device and the far-infrared heaters opposite thereto are gradually reduced in a direction from the furnace inlet to the furnace outlet such that the far infrared rays are efficiently irradiated onto the articles of which entire height is gradually lowered.

REFERENCES:
patent: 784854 (1905-03-01), Grace
patent: 1447494 (1923-03-01), Strown
patent: 2529704 (1950-11-01), Olsen
patent: 3000141 (1961-09-01), Gregorius
patent: 4169007 (1979-09-01), Pray
patent: 4486172 (1984-12-01), Dunning
patent: 4501072 (1985-02-01), Jacobi
patent: 4684784 (1987-08-01), Tamary

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