Back to results
US 5,845,574 AGranted
Ink transport roller for the inking unit of a web fed rotary printing machine and process for its production
AssigneeMAN Roland Druckmaschinen AG
InventorsPeer Dilling, Othmar Dax, Wolfgang Pilath
Life of this patent
Estimating the term…
Abstract
An ink transport roller (1) which may be used universally for panorama printing and printing of multiple colors next to one another. The roller has a recess (2) in an area between the colors which may be optionally opened or closed depending upon whether the roller is to be used for printing multiple colors next to one another or panorama printing, respectively.
Claims20
An inking unit of a web-fed rotary printing machines comprising:
- an ink transport roller of constant width having a circumferentially defined recess, and means for selectively opening and closing the recess so as to switch between panorama printing and printing of multiple colors next to one another.
An inking unit of a web-fed rotary printing machine, comprising:
- an ink transport roller having a circumferentially defined recess which is selectively closable and openable so as to switch between panorama printing and printing of multiple colors next to one another, said ink transport roller having an elastic cylindrical surface layer coaxially disposed about said ink transport roller, the elastic layer having an encircling recess defined therein;
- and
- an elastic tube disposed about said elastic layer and the encircling recess, said elastic tube being substantially radially displacable into the encircling recess and out of the encircling recess to a point at which said elastic tube is substantially plainer on both sides of the encircling recess.
An inking unit of a web-fed rotary printing machine comprising:
- an ink transport roller having a circumferentially defined recess which is selectively closable and openable so as to switch between panorama printing and printing of multiple colors next to one another;
- and
- a strip of oleophilic material disposed in the recess so as to close the recess.
Dependencies are inferred from the claim text.