Contactless web support guide

Details Contactless web support guide Contactless web support guide

1989-03-22

1990-04-24

Watkins, Donald

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Including details of roll or mount

226 97, B65H 2324

Patent

active

049193198

ABSTRACT:
Contactless support guides serve to create a cushion of pressurized air to hold a web of material such as paper spaced from a support face. The support face can be curved to transport the web through an angular deviation. The support face contains a large number of shallow pockets at least some of which emit air to create the cushion. Special additional pockets or slats are provided to create zones of higher pressure in the regions of the cushion where the web enters and exits the guide.

REFERENCES:
patent: 3313462 (1967-04-01), Smith
patent: 3984039 (1976-10-01), Hawley
patent: 4182472 (1980-01-01), Peekna
patent: 4197972 (1980-04-01), Daane
patent: 4342413 (1982-08-01), Reba

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