Mixing, conveying heating and/or cooling apparatus

Details Mixing, conveying heating and/or cooling apparatus Mixing, conveying heating and/or cooling apparatus

1975-12-08

1977-08-09

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Plural impellers having relative movement or independent...

Intersecting or interdigitated paths of operation

416176, 416DIG3, 259191, B01F 708

Patent

active

040407683

ABSTRACT:
A helical blade is provided for a mixing or conveying apparatus which can be used for heating or cooling or in general effecting a thermal treatment such as drying, evaporating calcining or crystallizing a product fed to the apparatus. The blade comprises a pair of pressed ring shaped discs welded together. One disc is shaped with its inner margin curved into or nearly into the axial direction, and the other disc is welded to it at its inner and outer margins. The blade may be welded directly to a shaft, mounted freely thereon or welded to blocks on the shaft to provided spaces between the flights of the blade and the shaft.

REFERENCES:
patent: 38292 (1863-04-01), Degges
patent: 88595 (1869-04-01), Ward
patent: 170711 (1875-12-01), Chase
patent: 342572 (1886-05-01), Bovyer
patent: 1830985 (1931-11-01), Dreier
patent: 2611590 (1952-09-01), Jebens
patent: 2758823 (1956-08-01), Vasby
patent: 3143768 (1964-08-01), Scherping
patent: 3589834 (1971-06-01), Cairelli
patent: 3606580 (1971-09-01), Kaufman

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