Vacuum roller for transporting a web

Details Vacuum roller for transporting a web Vacuum roller for transporting a web

1980-04-10

1981-07-07

McCarthy, Edward J.

Advancing material of indeterminate length

With adherence or attraction of material to advancing means

By pneumatic pressure

B65H 1730

Patent

active

042770106

ABSTRACT:
A drive roller and roller system for positive transport of a web, which system utilizes a vacuum for drawing the web against a selected portion of the roller, thereby to control the linear speed and the tension of the web.

REFERENCES:
patent: 2753181 (1956-07-01), Anander
patent: 3037557 (1962-06-01), Faeber
patent: 3630424 (1971-12-01), Rau
patent: 4029249 (1977-06-01), Nagel
patent: 4207998 (1980-06-01), Schmid

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