Air pressure assisted beltless holddown for double backer

Details Air pressure assisted beltless holddown for double backer Air pressure assisted beltless holddown for double backer

1998-03-04

1999-09-07

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

34634, 156210, 156470, B32B 3100, B31F 122

Patent

active

059481978

ABSTRACT:
An essentially non-contact holddown system for a corrugator double backer utilizes air pressure supplied by a plenum positioned above and closely spaced from the lower heating section which supports the corrugated web. Continuous edge sealing membranes seal the interface between the lateral edges of the plenum and the web, and overlie the edges of the web so that the seal is enhanced by the holddown pressure.

REFERENCES:
patent: 3319353 (1967-05-01), Matsunami et al.
patent: 3340125 (1967-09-01), Drenning et al.
patent: 4889580 (1989-12-01), Seki et al.
patent: 4947559 (1990-08-01), Basler et al.

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