Booklet maker with flexible gate upstream of crease rolls

Details Booklet maker with flexible gate upstream of crease rolls Booklet maker with flexible gate upstream of crease rolls

2005-09-06

2005-09-06

Tawfik, Sameh H. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

C493S427000, C493S434000, C493S442000

Reexamination Certificate

active

06939283

ABSTRACT:
In a booklet maker or sheet folder wherein one or more sheets are pushed through a nip formed by a pair of crease rolls, a pair of flexible gate members cover the nip while sheets to be folded are being loaded. When the sheets are pushed through the nip, the flexible gate members are displaced, allowing the nip to receive the sheets. Following feeding of the sheets, the flexible gate members spring back to a closed position.

REFERENCES:
patent: 3117777 (1964-01-01), Funk
patent: 4270742 (1981-06-01), Kobayashi
patent: 4898570 (1990-02-01), Luperti et al.
patent: 5129876 (1992-07-01), Brabant et al.
patent: 5135465 (1992-08-01), Hirahara
patent: 5169376 (1992-12-01), Ries et al.
patent: 5316280 (1994-05-01), Watkiss
patent: 6042529 (2000-03-01), Hubler et al.

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