Heater for top portions of containers

Details Heater for top portions of containers Heater for top portions of containers

1997-06-23

1999-02-09

Walberg, Teresa J.

Heating

Inserted emitter type of hollow article interior heater

53477, B65B 5120

Patent

active

058685677

ABSTRACT:
A heater for top portions of containers 11 filled with contents and each having a top forming tubular portion 14 generally rectangular to square in cross section for heating seal parts 31, 35 of the top forming portion 14 with hot air for heat-sealing comprises a hot air nozzle 51 in the form of a bottomed tube having a generally rectangular to square cross section and to be inserted into the top forming portion 14 for heating. The hot air nozzle 51 having first to fourth four side walls 61 to 64 integral with one another with a ridgeline formed between the adjoining side walls. The side walls 61 to 64 is formed with orifices 68 as distributed over regions thereof corresponding to the respective seal parts 31, 35. The side walls 61 to 64 each have an outer surface facing obliquely upward.

REFERENCES:
patent: 4035987 (1977-07-01), Nakazato et al.
patent: 4838009 (1989-06-01), Connor et al.
patent: 5618253 (1997-04-01), Okushita
patent: 5678391 (1997-10-01), Andersen et al.

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