Refrigeration – Processes – Treating an article
Patent
1981-12-21
1983-02-01
Capossela, Ronald C.
Refrigeration
Processes
Treating an article
62 89, F25D 1306
Patent
active
043708617
ABSTRACT:
A system for heating or cooling articles conveyed in a vertical helical path is defined by an endless conveyor belt driven at its inner edge by contact with a rotating drum and a circulating heat exchange fluid propelled horizontally onto the articles by axial flow fans rotating in a vertical plane. The system features a novel arrangement employing scroll means for confining the circulating heat exchange fluid to a substantial portion of the helical path and location of fan means such that the heat exchange fluid is propelled in push-pull manner from the discharge side of one fan means to the intake or suction side of a second fan means. In the preferred embodiment directed to refrigeration of conveyed articles, more particularly foodstuffs to be frozen, the conveyor is located within an insulating housing. Further featured novelty includes location of the driving means for the rotating drum externally of the housing and directing of refrigerant, such as liquid CO.sub.2 into the fan blast in a direction counter to that of the blast.
REFERENCES:
patent: 3348659 (1967-10-01), Roinestad
patent: 3638451 (1972-02-01), Brandt
patent: 3733848 (1973-05-01), Duron et al.
patent: 3866432 (1975-02-01), Harrison
patent: 4023381 (1977-05-01), Onodera
patent: 4056950 (1977-11-01), Kaufman, Jr.
"Ashworth Lotension Spiralcage System" Described in Ashworth Bulletin No. 71, (1970), pp. 10-11.
Lovette, Jr. Norris G.
Ruprecht David R.
Air Products and Chemicals Inc.
Capossela Ronald C.
Dannells, Jr. Richard A.
Innis E. Eugene
Simmons James C.
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