Heat bonding device

Details Heat bonding device Heat bonding device

1979-09-06

1981-02-17

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Presses or press platen structures, per se

100 93P, 100211, 100296, 156272, 156275, 156285, 156380, 156382, B30B 922

Patent

active

042513146

ABSTRACT:
Apparatus for bonding heat bondable materials through the application of pressure and heat employs a diaphragm pressed by fluid pressure against the materials. The diaphragm comprises a web having a flexible heating element bonded to its non-material pressing side and has a configuration corresponding to the desired seam configuration. An improved heating element configuration is disclosed to reduce the forces tending to separate the element from the web as a result of their different coefficients of expansion and provision is made fo facilitate electrical connection to the heating element while reducing unwanted effects on the heat pattern.

REFERENCES:
patent: 2714416 (1955-08-01), Fever
patent: 3031739 (1962-01-01), Boggs
patent: 3049465 (1962-08-01), Wilkins
patent: 3071503 (1963-01-01), Dubois
patent: 3133846 (1964-05-01), Gandy
patent: 3480505 (1969-11-01), Donnell et al.
patent: 3630396 (1953-03-01), Langer
patent: 3875373 (1975-04-01), Lavey et al.
patent: 3996091 (1976-12-01), Daunt et al.

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