Seal temperature control means for curtain-type wrapping machine

Details Seal temperature control means for curtain-type wrapping machine Seal temperature control means for curtain-type wrapping machine

1975-06-09

1976-06-22

Albritton, C. L.

Electric heating

Heating devices

Combined with pressure application means

53 33, 93DIG1, 156515, 338316, H05B 100

Patent

active

039653331

ABSTRACT:
Temperature control means for a curtain-type wrapping or banding machine to prevent excess ambient temperature thereon by employing switch-actuating means responsive to even very small changes in the expansion and contraction of the elongated heating element on the heater bar of the machine which co-acts with the anvil thereof to effect sealing of either a web or bands of thermoplastic synthetic resin material around various types of objects of various sizes and also re-constitute the web or bands into continuous form incident to severing the sealed web or bands from the supply material.

REFERENCES:
patent: 3299251 (1967-01-01), Zelnick
patent: 3461271 (1969-08-01), Reitzes
patent: 3569667 (1971-03-01), Ryswick

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