Boundary layer air scraper for a rotogravure printing press

Details Boundary layer air scraper for a rotogravure printing press Boundary layer air scraper for a rotogravure printing press

1991-02-07

1991-11-19

Fisher, J. Reed

Printing

Intaglio

Rotary

101169, B41F 910, B41F 916

Patent

active

050656759

ABSTRACT:
A rotogravure printing press includes a boundary layer air scraper which is located immediately upstream of the pinch area of the press (e.g. the area formed by the impression roller and the printing cylinder). The air scraper blocks boundary layer airflow drawn with the moving web. This reduces the solvent laden air and allows a reduction in the capacity of the scavenger system.

REFERENCES:
patent: 1196090 (1916-08-01), Doyle
patent: 2022635 (1935-11-01), Durham
patent: 2040961 (1936-05-01), Stouch
patent: 2126778 (1938-09-01), Horton
patent: 2141978 (1938-12-01), Greenhill
patent: 2256515 (1941-09-01), Brueshaber
patent: 3108539 (1963-10-01), Champion et al.
patent: 3264673 (1966-08-01), Scott
patent: 3624860 (1971-12-01), Grimston et al.
patent: 3829927 (1974-08-01), Boyland
patent: 3988988 (1976-11-01), Sable

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