The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1995
Filed:
Jun. 22, 1994
Toni Ehrhard, Breuberg, DE;
MAN Roland Druckmaschinen AG, , DE;
Abstract
A chamber-type doctor blade apparatus for exchanging or replacing a doctor blade in a running printing press is disclosed. The apparatus includes a housing defining an elongated opening for slidably receiving a receiver carrying a doctor blade. When inserted in the elongated opening, the receiver pivots a sealing doctor blade against its normal bias and out of engagement with an applicator roller of the printing press. When the receiver is removed from the elongated opening the sealing doctor blade pivots back into engagement with the applicator roller thereby preventing printing fluids from exiting the chamber-type doctor blade apparatus through the elongated opening when the receiver is removed. As a result, the doctor blades of the chamber-type doctor blade apparatus can be replaced while the serviced printing machine is running.