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US 8,875,649 B2Granted
Apparatus for dusting printed sheets with powder
AssigneeHeidelberger Druckmaschinen AG
InventorClaudius Haas
Life of this patent
Estimating the term…
Abstract
An apparatus for dusting printed sheets with powder contains at least one powder nozzle, an actuating element which is mounted such that it can be adjusted into a position, in which the actuating element is situated in the jet path of the powder nozzle and the powder bounces off the actuating element, and an extraction device for extracting the powder which has bounced off the actuating element. An air-conducting connection exists permanently between the powder nozzle and the surroundings of the apparatus.
Claims8
An apparatus for dusting printed sheets with powder, the apparatus comprising:
- at least one powder nozzle;
- an actuating element mounted such that said actuating element can be adjusted into a position, in which said actuating element is situated in a jet path of said powder nozzle and the powder bounces off said actuating element;
- an extraction device for extracting the powder bouncing off said actuating element;
- and
- an air-conducting connection existing permanently between said powder nozzle and surroundings of the apparatus;
- and
- a housing having at least one outlet opening formed therein and a closure element for closing said outlet opening, said actuating element being formed by said closure element, and in that, if said outlet opening is not closed, said powder nozzle sprays the powder through said outlet opening and, if said outlet opening is closed, said air-conducting connection exists between said powder nozzle and the surroundings of the apparatus, said powder nozzle being one of a plurality of powder nozzles disposed in a nozzle row, said closure element being a common closure element extending over all of said powder nozzles of said nozzle row.
4 more elements
A printing press, comprising:
- an apparatus for dusting printed sheets with powder, said apparatus containing:
- at least one powder nozzle;
- an actuating element mounted such that said actuating element can be adjusted into a position, in which said actuating element is situated in a jet path of said powder nozzle and the powder bounces off said actuating element;
- an extraction device for extracting the powder bouncing off said actuating element;
- and
- an air-conducting connection existing permanently between said powder nozzle and surroundings of the apparatus;
- and
- a housing having at least one outlet opening formed therein and a closure element for closing said outlet opening, said actuating element being formed by said closure element, and in that, if said outlet opening is not closed, said powder nozzle sprays the powder through said outlet opening and, if said outlet opening is closed, said air-conducting connection exists between said powder nozzle and the surroundings of the apparatus, said powder nozzle being one of a plurality of powder nozzles disposed in a nozzle row, and said closure element being a common closure element which extends over all of said powder nozzles of said nozzle row.
5 more elements
Dependencies are inferred from the claim text.