Apparatus for perforation of a sheet material

Details Apparatus for perforation of a sheet material Apparatus for perforation of a sheet material

1992-07-17

1994-01-11

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

425290, 264156, 83202, B26D 520

Patent

active

052775712

ABSTRACT:
An apparatus for perforating a sheet material provides for a perforating die located intermediate two orbital rollers. The two orbital rollers move in orbital paths in the same orbital direction at the same speed and in positions which are 180 degrees apart. Each roller acts as a temporary storage input and output in opposite phase from each other so that incoming sheet material is alternately stored and dispensed as a loop on the orbital roller. Since the rollers are out of phase, this permits a segment of the sheet material to be stopped intermediate the orbital rollers so that the perforating die can act on the stopped segment.

REFERENCES:
patent: 439723 (1890-11-01), Cox
patent: 1905446 (1933-04-01), Dewey et al.
patent: 2655212 (1953-10-01), Stewart
patent: 2748863 (1956-06-01), Benton
patent: 3102673 (1963-09-01), Aronson et al.
patent: 4165666 (1979-08-01), Johnson et al.
patent: 4233017 (1980-11-01), Lucas et al.

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