Adhesive wheel applicator device

Details Adhesive wheel applicator device Adhesive wheel applicator device

1974-12-27

1976-06-29

McIntosh, John P.

Coating apparatus

Solid applicator contacting work

Heater or cooler for applicator or for film-transfer feed...

118245, 118261, B05C 102

Patent

active

039658562

ABSTRACT:
A device including an applicator wheel for applying molten adhesive to a substrate as the substrate is moved over the surface of the wheel. The device includes a reservoir within which the wheel is partially submerged in molten adhesive and a doctor blade for controlling the thickness of adhesive applied to the substrate. The reservoir is so configurated that so long as the wheel is rotating, there is a continuous flow of molten adhesive from the pool beneath the wheel up to the doctor blade, along the underside of the doctor blade and back to the pool via channels in the end plates of a reservoir. To prevent the substrate from adhering to the surface of the wheel, stripper fingers extend parallel to the path of movement of the substrate and ride within annular channels or grooves in the periphery of the wheel. These stripper fingers are preloaded into contact with the surface of the wheel and are encased within "Teflon" tubing so configured in relation to the grooves in the surface of the wheel that the tubing functions as a dynamic seal to prevent adhesive from riding up the grooves and beneath the doctor blade.

REFERENCES:
patent: 509213 (1893-11-01), Friedlander
patent: 1206641 (1916-11-01), Ackermann
patent: 3154434 (1964-10-01), Rosenthal
patent: 3255727 (1966-06-01), Boothroyd
patent: 3353517 (1967-11-01), Tower
patent: 3465711 (1969-09-01), Woodman
patent: 3605686 (1971-09-01), Copithorne

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