Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1999-03-26
2000-04-11
Walberg, Teresa
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219388, 126 21A, 34223, 34232, A21B 100
Patent
active
060490667
ABSTRACT:
An impingement heat transfer device for transferring heat between a stream of temperature controlled air and a product wherein an air supply duct and an air return duct have a common wall. A tube has one end communicating with the inside of the air supply duct and another end extending through an opening in the air return duct. Air is circulated to reduce pressure in the air return duct and increase pressure in the air supply duct such that a stream of air flows through and out of the tube and spent air is drawn through the opening encircling the tube into the air return duct.
REFERENCES:
patent: 5131841 (1992-07-01), Smith et al.
patent: 5205274 (1993-04-01), Smith et al.
patent: 5671660 (1997-09-01), Moshonas
patent: 5717192 (1998-02-01), Dobie et al.
Fuqua Shawntina
Walberg Teresa
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