Method and apparatus for applying foam plastic materials to a ro

Details Method and apparatus for applying foam plastic materials to a ro Method and apparatus for applying foam plastic materials to a ro

1995-08-16

1997-09-23

Stemmer, Daniel

Plastic article or earthenware shaping or treating: apparatus

With mechanical means forming or expanding pores

425 64, 425224, 425817C, E04D 1500, E04F 1302

Patent

active

056701780

ABSTRACT:
Foamed plastic is applied on a roof substrate by progressively dispensing expandable plastic foam material on the substrate along a path and progressively confining the vertical and lateral expansion of the material along the path and relative to the substrate. Apparatus for applying the foamed plastic comprises a platform having opposite ends and opposite sides having an endless belt supported on the platform for displacement relative thereto in the direction between the opposite ends. The belt is supported above the roof substrate by laterally spaced rails or by tracks on the belt, and a motor is provided on the platform for driving the belt to move the platform along the path. A dispensing gun is supported on the front end of the platform for dispensing expandable plastic foam material onto the substrate ahead of the belt and vertical and lateral expansion of the material is confined by the belt and rails or tracks as the platform moves along the path.

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