Stoves and furnaces – Stove hoods
Patent
1984-07-31
1986-08-26
Joyce, Harold
Stoves and furnaces
Stove hoods
55238, 55456, 55465, 126299D, F24C 1520
Patent
active
046076140
ABSTRACT:
A grease extractor incorporating a plurality of oblique baffles disposed within a barrel in angularly displaced relation with a longitudinal axis of the barrel. The oblique baffles intercross with each other at the longitudinal axis and are arranged in spaced and angularly displaced relation with each other so as to define within the confines of the barrel a plurality of congruent flow paths extending generally spirally about said longitudinal axis. When the grease-laden fumes are drawn into the grease extractor, they are forced to follow said flow paths as whirling about the longitudinal axis to move at ever-changing velocities, whereby the grease particles entrained in the fumes are subject to centrifugal action during the substantially entire course of flow to impinge continuously on the oblique baffles and the inner surface of the barrel to be deposited thereon. Accordingly, substantially the entire length of the flow paths can define the grease trapping surfaces therealong, increasing the grease extraction efficiency. In addition to the above, the disposition of the plural flow paths about the longitudinal axis can provide a compact arrangement of the extractor which enables maximum extraction efficiency at a minimum dimensional requirement.
REFERENCES:
patent: 735192 (1903-08-01), Allert
patent: 3030755 (1962-04-01), Farr et al.
patent: 3393497 (1968-07-01), Donnelly
patent: 4038056 (1977-07-01), Diachuk et al.
patent: 4071019 (1978-01-01), King
patent: 4098582 (1978-07-01), Takeda
patent: 4103676 (1978-08-01), Kastner
patent: 4460386 (1984-07-01), Diachuk
Higashino Toshihiro
Mitsunaga Hirofumi
Nakanishi Takahiro
Taya Yoshihiro
Joyce Harold
Kuraco Limited
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