Apparatus for applying an adhesive layer to a substrate surface

Details Apparatus for applying an adhesive layer to a substrate surface Apparatus for applying an adhesive layer to a substrate surface

1992-05-26

1994-08-09

Jones, W. Gary

Coating apparatus

Solid applicator contacting work

With work-handling or work-supporting

118244, 118257, 118263, 101477, B05C 102, B05C 1100, B41L 4714

Patent

active

053363191

ABSTRACT:
An apparatus for uniformly coating a planar substrate with an adhesive layer has a rotatably mounted sleeve with closed ends to form an internal cavity therein. The sleeve has a plurality of holes therein and its outer surface is covered by a porous layer such as a foam layer. A vacuum is applied to the sleeve cavity, while the sleeve is rotated. One surface of a polymeric film is positioned on the porous layer and held in place by the vacuum acting through the sleeve holes and porous layer. The other surface of the polymeric film contains a uniform adhesive coating. The surface of a planar substrate is tangentially transported past the polymeric film surface with the adhesive layer and in timed registration therewith, so that a nip is formed between the planar substrate and the polymeric film which transfers a uniformly thick portion of adhesive to the planar substrate surface.

REFERENCES:
patent: 2659340 (1953-11-01), Zinn, Jr.
patent: 3408984 (1968-11-01), Pullins
patent: 4005653 (1977-02-01), Arkell
patent: 4056057 (1977-11-01), Smith
patent: 4209551 (1980-06-01), Masaki et al.
patent: 4574020 (1986-03-01), Fosnaught
patent: 4678529 (1987-07-01), Drake et al.
patent: 4770909 (1988-09-01), McIntyre

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