Method of crosscutting a moving web

Details Method of crosscutting a moving web Method of crosscutting a moving web

2005-04-19

2005-04-19

Goodman, Charles (Department: 3724)

Cutting

Processes

During movement of work past flying cutter

C083S324000, C083S349000

Reexamination Certificate

active

06880439

ABSTRACT:
A method of cross-cutting a moving web uses a cutting knife operably mounted on a knife cylinder having a circumferential distance LZwhere LZis smaller than a cut length, LA. The knife cylinder for revolving in a first and a second opposite direction is powered by a drive motor in either direction. The method includes revolving the knife cylinder in a first direction, cutting the web with the cutting knife, and completing a first cut. The knife cylinder is then reversed to retard progress in the first direction and then accelerated to the speed of the moving web until starting the second cut.

REFERENCES:
patent: 5000812 (1991-03-01), Murphy
patent: 6360640 (2002-03-01), Cote
patent: 28 12 849 (1985-01-01), None
patent: 36 08 111 (1987-10-01), None
patent: 44 17 493 (1995-11-01), None
patent: 100 30 055 (2001-01-01), None
patent: 1602408 (1981-11-01), None

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