Tool for eliminating air voids underneath a membrane seam and me

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

Patent

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Details

156574, 156579, 156582, B32B 3100

Patent

active

048614009

ABSTRACT:
Disclosed is a tool for removing air bubbles trapped between overlapping membrane layers. The tool includes a body about which is spaced a plurality of pressure rollers. The pressure rollers have axes of rotation generally perpendicular to an axis of rotation of the body. A drive shaft has a first end attached to the body and extends along the axis of rotation of the body. The second end of the drive shaft provides attachment to a rotating driving source. When pressure is applied to the drive shaft as the drive shaft is made to rotate, the pressure rollers simultaneously engage the surface of a membrane so as to sweep a circular path thereabout. A method of using the tool is also disclosed, wherein the tool is located adjacent a seam where the layers are overlaid and is translated along the seam as the tool is rotated.

REFERENCES:
patent: 2159852 (1939-05-01), Homeier
patent: 2225229 (1940-12-01), Neuwirth
patent: 3098783 (1963-07-01), Busch
patent: 4289552 (1981-09-01), Hammer
patent: 4758291 (1988-07-01), Fechner

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