Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work feeding or handling means
Patent
1998-02-20
2000-11-07
Crispino, Richard
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work feeding or handling means
156579, 219229, 219542, 2221465, B65C 1104, H05B 100, H05B 306, B67D 562
Patent
active
06142207&
ABSTRACT:
A hot melt glue applicator has an elongate chamber having a first end shaped as a hot melt glue stick entry and a second end equipped with a molten glue dispensing nozzle. The applicator includes a device for progressively moving the glue stick into the chamber, and a device for electrically heating that part of the glue stick which is in the chamber. The device for electrically heating includes at least one heating element including an electrically resistive material track which can be connected to an electrical power supply and which is formed on an electrically insulative surface of a substrate, so as to be in intimate thermal contact with a mass of glue contained in the chamber. Because of the intimate thermal contact established between the resistive track of the heating element and the mass of glue, the thermal energy emitted by the track because of the Joule effect is virtually all absorbed by the mass of glue, which considerably improves the thermal efficiency of the applicator.
REFERENCES:
patent: 4145601 (1979-03-01), Lavrentiev et al.
patent: 5362164 (1994-11-01), Wingert
patent: 5462206 (1995-10-01), Kwasie
patent: 5557704 (1996-09-01), Dennis et al.
patent: 5965049 (1999-10-01), Carlet
Crispino Richard
Purvis Sue A.
Sofragraf Industries
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