Thermal expansion compensated hot knife

Details Thermal expansion compensated hot knife Thermal expansion compensated hot knife

1992-06-04

1993-04-27

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

533737, 533759, 100 93P, 1565831, 1565833, 1565834, B32B 3500

Patent

active

052058999

ABSTRACT:
A heat sealing bar assembly is disclosed that is intended to avoid distortion of the heat sealing edge due to thermal expansion of the heated sealing bar with respect to the unheated support beam to which it is mounted. The mounting means include a fixed center support, end supports that permit axial sliding of the ends of the heated seal bar with respect to the support beam, and a series of jacking screws between the center support and the end support for adjusting the shape of the heated sealing bar.

REFERENCES:
patent: 3284269 (1966-11-01), Grevich
patent: 3779838 (1973-12-01), Wech
patent: 4431474 (1984-02-01), Gronck et al.
patent: 4449962 (1984-05-01), Copia

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