Heat exchange – Movable heating or cooling surface – Hollow screw type impeller
Patent
1987-10-30
1989-08-15
Jones, Larry
Heat exchange
Movable heating or cooling surface
Hollow screw type impeller
165 92, 165 86, 416 96R, F28F 506
Patent
active
048565806
ABSTRACT:
A conveying screw having a tubular helical flight attached only at its opposite end portions to a hollow conveying screw body. Heat exchange medium introduced into the hollow body is transferred along the tubular helical flight.
REFERENCES:
patent: 2610033 (1952-09-01), Rietz
patent: 2639898 (1953-05-01), Reich
patent: 2761657 (1956-09-01), Rietz
patent: 3263748 (1966-08-01), Jemal et al.
patent: 3486740 (1969-12-01), Christian
patent: 4398607 (1983-08-01), Reichardt
patent: 4429782 (1984-02-01), Pierson
patent: 4596286 (1986-06-01), Stetler
Berwind Corporation
Jones Larry
Ryther James P.
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