Apparatus for electrically perforating moving webs

Details Apparatus for electrically perforating moving webs Apparatus for electrically perforating moving webs

1976-02-02

1977-06-14

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

Electric arc-type devices

131 15B, H05B 718

Patent

active

040299384

ABSTRACT:
Apparatus and method for electrically perforating a moving web such as paper, film and the like by passing the web between at least one electrically charged electrode and a ground electrode in a perforating unit, the charged electrode comprising a member adapted to rotate in a direction parallel to the direction of the moving web and connected to an intermittent high voltage source and the ground electrode comprising means adapted to move in a direction at right angles to the direction of rotation of the charged electrode.

REFERENCES:
patent: 2545208 (1951-03-01), Meaker
patent: 3017486 (1962-01-01), Kogan et al.
patent: 3098143 (1963-07-01), Warmt
patent: 3167641 (1965-01-01), Parmele et al.
patent: 3348022 (1967-10-01), Schirmer
patent: 3475591 (1969-10-01), Fuji et al.
patent: 3549943 (1970-12-01), Church
patent: 3783237 (1974-01-01), McArthur

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