Printing apparatus and method

Printing – Inkers – Fountains

Patent

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Details

101483, B41F 3108, B41F 3106

Patent

active

051688077

ABSTRACT:
An auxiliary apparatus is provided to supply ink to a printing press upon failure of a main ink pump assembly in the printing press. The auxiliary apparatus includes a portable auxiliary ink pump assembly which is maintained separate from the printing press during normal operation of the main ink pump assembly. Upon failure of the main ink pump assembly to properly supply ink, the auxiliary ink pump assembly is moved to a location adjacent to the failed main ink pump assembly. The failed main ink pump assembly is disconnected from the ink rail of the printing press. The auxiliary ink pump assembly is connected in fluid communication with the ink rail. A motor connected with the auxiliary ink pump assembly then drives the auxiliary ink pump assembly to supply ink to the ink rail. The speed of operation of the motor and auxiliary ink pump assembly is varied as a function of variations in the operating speed of the printing press and the density with which ink is printed on sheet material moving through the press.

REFERENCES:
patent: 3065693 (1962-11-01), Neal et al.
patent: 3288061 (1966-11-01), Doyle
patent: 4461209 (1984-07-01), Washchynsky
patent: 4649502 (1987-03-01), Keller et al.
patent: 4792292 (1988-12-01), Gaenzle
patent: 5018444 (1991-05-01), Schumacher et al.
patent: 5027706 (1991-07-01), Niemiro et al.

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