Refrigeration – Article moving means – Continuous longitudinal-type conveyor
Patent
1976-10-04
1978-03-14
Capossela, Ronald C.
Refrigeration
Article moving means
Continuous longitudinal-type conveyor
415185, 415213B, F25D 2504
Patent
active
040783987
ABSTRACT:
In an improved food freezing tunnel, an improved freezing air flow apparatus, more uniformly distributes upwardly flowing freezing air through a horizontally traveling porous food conveyor, thereby more effectively freezing the conveyed food pieces. The improved freezing air flow apparatus utilizes a centrifugal fan wheel, without a surrounding volute or housing, mounted with its rotational axis arranged vertically. It is dependingly mounted from a fan motor, in turn centrally supported, on horizontal frame, within the fan chamber located over an open bottom lower air souce chamber of the freezing tunnel. Returning air, after passing from the fan chamber up through the freezing coil chamber, and beyond up through the porous conveyor belts of the freezing chamber, is drawn down within the overall freezing tunnel building alongside each side of the freezing tunnel, to be again drawn upwardly through the open bottom air source chamber and then back up into the fan wheel and fan chamber for recirculation. During this recirculation, upon leaving the unhoused centrifugal fan wheel, the cooling air is first discharged tangentially throughout 360.degree. in an overall horizontal direction. Thereafter the cooling air is deflected directly upwardly, by using inclined inside circular sides to guide the cooling air uniformly throughout the entire cross-sectional areas of the freezing tunnel inclusive of the entire volume of the freezing coil chamber, located directly over the fan chamber, and also the moving porous food conveyor volume located over the freezing coil chamber to more effectively and uniformly freeze the conveyed food products.
REFERENCES:
patent: 2527542 (1950-10-01), Gilson
patent: 3122897 (1964-03-01), Overbye
patent: 3938350 (1976-02-01), Martin et al.
Capossela Ronald C.
Cloudy & Britton Inc.
Deits David H.
Kessler Kenneth S.
Mattern Jr. Roy E.
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