Heat station for a heat sealing system

Details Heat station for a heat sealing system Heat station for a heat sealing system

1982-10-06

1987-02-10

Sipos, John

Package making

Means to open or erect receptacle

Means to open bag

53379, 1565833, 219243, B65B 5112

Patent

active

046414827

ABSTRACT:
The present invention includes at least one low mass flexible heat transfer member to which there is secured a plurality of electrical resistance paths, for each area of the material to be sealed during an excursion through the heat station. The electrical resistance paths are respectively connected to a power source, or power sources, to generate different quantities of heat respectively at different positions along the heat transfer member. The heat transfer member is flexible and is formed and disposed to push against sealable material to transfer heat thereto and cause said sealable material to be sealed.

REFERENCES:
patent: 1492707 (1924-05-01), Gallea
patent: 2629808 (1953-02-01), Ulmschneider
patent: 2963838 (1960-12-01), Harrison
patent: 3010267 (1961-11-01), Richardson
patent: 3057125 (1962-10-01), Jensen
patent: 3067309 (1962-12-01), Chinn
patent: 3115731 (1963-12-01), Blythe
patent: 3166462 (1965-01-01), Schoder
patent: 3236027 (1966-02-01), Schmermund
patent: 3531621 (1970-09-01), Beck
patent: 4445025 (1984-04-01), Metz

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