Heat sealing unit and method of making same

Details Heat sealing unit and method of making same Heat sealing unit and method of making same

1976-03-29

1977-04-05

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

93DIG1, 100211, 156207, 156210, 156582, 156583, 219243, 219244, B30B 1534, B32B 3100, H05B 334

Patent

active

040160211

ABSTRACT:
A heat sealing unit for producing a heat sealed seam on plastic films wherein a plurality of fins made of thin ductile metal having good heat conducting properties are mounted on a thin flexible heating element. The heating element is in turn mounted on a resiliently compressible back-up pad. The fins are closely spaced and flattened against the heating element in overlapping relation so that they provide a relatively large heat sink and at the same time enable the unit to flex so as to conform to the contour of the plastic films to be heat sealed.

REFERENCES:
patent: 616479 (1898-12-01), Martin
patent: 2711382 (1955-06-01), Smith-Johannsen
patent: 3269885 (1966-08-01), Cianci
patent: 3271560 (1966-09-01), Schott, Jr.
patent: 3461021 (1969-08-01), Brinkmeier et al.

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