Heat seal apparatus

Details Heat seal apparatus Heat seal apparatus

1983-12-13

1984-09-04

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With handle or handgrip

291105, 29132, 1565831, 219244, B30B 300, B32B 3120

Patent

active

044695497

ABSTRACT:
Heat seal apparatus is disclosed which comprises a heater unit having a heater therein and a roller insertable in and removable from the heater unit. The roller, when in the heater unit, is in heat transfer relation with the heater so as to be heated to a predetermined temperature level. When the roller is removed for application on a package for heat sealing purposes, the heat stored in the roller performs the heat sealing function thus obviating the need for a heater located within the roller and for a power cord connected to the roller. The roller is a sealed, hollow tube filled with a suitable heat storage medium, such as paraffin or another low vapor pressure, high heat capacity compound, so as to ensure sufficient heat capacity in the roller for heat sealing purposes, to ensure uniform roller temperatures, and to require only a localized contact with the heater for substantially uniformly heating the roller.

REFERENCES:
patent: 2208729 (1940-07-01), Offutt
patent: 2430920 (1947-11-01), Dodge
patent: 3857015 (1974-12-01), Clark et al.
patent: 4310365 (1982-01-01), Elliott et al.

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