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US 10,717,301 B2Granted
Web-fed printing machine
AssigneeHeidelberger Druckmaschinen AG
InventorPeter Hachmann
Life of this patent
Estimating the term…
Abstract
A printing machine for printing on a web includes a first roller and a second roller between which the web forms a loop. A trough for pneumatically guiding the loop equidistantly to the major part of the length of curvature of the trough is provided between the first roller and the second roller.
Claims11
A printing machine for printing on a web, the printing machine comprising:
- a first roller;
- a second roller and between said first and second rollers the web forms a loop;
- and
- a trough for pneumatically guiding the loop equidistantly relative to a major part of a length of curvature of said trough and said trough disposed between said first roller and said second roller, wherein said trough having suction openings and blower openings formed therein for guiding the loop in a contact-free way.
1 more element
A printing machine for printing on a web, the printing machine comprising:
- a first roller;
- a second roller and between said first and second rollers the web forms a loop;
- a trough for pneumatically guiding the loop equidistantly relative to a major part of a length of curvature of said trough and said trough disposed between said first roller and said second roller;
- a support roller;
- and
- wherein said trough is disposed on an outer side of the loop and said support roller that is out of contact with the web during a trouble-free printing operation is disposed on an inner side of the loop.
3 more elements
A printing machine for printing on a web, the printing machine comprising:
- a first roller;
- a second roller and between said first and second rollers the web forms a loop;
- a trough for pneumatically guiding the loop equidistantly relative to a major part of a length of curvature of said trough and said trough disposed between said first roller and said second roller;
- and
- wherein said first roller and/or said second roller is a cooling roller through which a cooling fluid flows to cool the web.
2 more elements
Dependencies are inferred from the claim text.