Air bag tensioning device

Details Air bag tensioning device Air bag tensioning device

1991-05-01

1992-09-08

Dayoan, D. Glenn

Conveyors: power-driven

Conveyor section

Endless conveyor

198813, B65G 2344

Patent

active

051450569

ABSTRACT:
A tensioning device for running wide webs under essentially uniform tension includes a tensioning roller at least as long as the web is wide. The tensioning roller is carried by an essentially rigid frame pivoted to a foundation and urged to pivot in a tension-increased direction by an air bag containing air a pre-determined super-atmospheric pressure.

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patent: 4253343 (1981-03-01), Black et al.
patent: 4403954 (1983-09-01), Koeguchi et al.

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