Method of vacuum timing control

Package making – Methods – Filling preformed receptacle and closing

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Details

53266A, 13762415, 1376242, B65B 4300

Patent

active

042889669

ABSTRACT:
A method for selectively adjusting the duration of vacuum application to various stations of an insertion machine which ultimately inserts insertion material into an envelope.

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patent: 3465499 (1969-09-01), Nelson et al.
patent: 3844551 (1974-10-01), Morrison
patent: 3913463 (1975-10-01), Hollis
patent: 4090532 (1978-05-01), Story, Jr.
patent: 4159611 (1979-07-01), Russell

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