Baking and drying furnace for containers such as cans

Details Baking and drying furnace for containers such as cans Baking and drying furnace for containers such as cans

1982-07-30

1985-01-08

Yuen, Henry C.

Heating

Heat applicator having structure for mounting it on or...

432 59, 34105, F24J 300, F26B 2500

Patent

active

044925719

ABSTRACT:
This invention relates to a baking and drying furnace wherein hot air is supplied from the top of containers such as cans passing through the furnace in an inverted attitude and the hot air within the cans are suctioned whereby the hot air may flow along internal and external surfaces of the containers, the improvement wherein the containers are prevented from being tumbled by being flapped by a stream of hot air.
First, in order to prevent cans from being tumbled by being flapped by a turbulent flow of hot air which downwardly flows along the outside of containers such as cans resulting from impingement of hot air upon a can transporting passage, nozzles for suctioning hot air are arranged along said transporting passage to arrange the flowing direction of downwardly flowing hot air.
Secondly, in order to increase the force for pressing the containers to prevent them from being tumbled, a suction resistance of nozzles for suctioning hot air within the containers is decreased, and the diameter of a nozzle is determined so that a difference in pressure between internal and external sides of the container becomes its maximum.
Thirdly, in order to prevent the transporting belt from being displaced or levitated, the belt is slidably moved within the groove and suction nozzles are disposed on the bottom of the groove to attract the belt.

REFERENCES:
patent: 2835003 (1958-05-01), Abrams
patent: 3729832 (1973-05-01), Lund
patent: 3755916 (1973-09-01), Guloian
patent: 4053993 (1977-10-01), Schregenberger
patent: 4092099 (1978-05-01), Chiba et al.
patent: 4118178 (1978-10-01), Calvi et al.
patent: 4383378 (1983-05-01), Lockwood

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