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:
Sep. 04, 1990
Filed:
Sep. 27, 1988
Akira Hara, Tokyo, JP;
B-J Trading Limited, Tokyo, JP;
Abstract
A cylinder cleaning apparatus for cleaning the surface of a cylinder such as an impression cylinder of an offset printing machine having a projection such as paper grippers, by means of a cleaner unit with a cleaning cloth which is selectively held in pressure contact with the surface of the cylinder while the cylinder rotates so that the surface is cleaned, by the relative movement between the cleaner unit and the surface of the cylinder. The apparatus has a projection detector capable of detecting the projection on the cylinder, and a cleaner unit retracting mechanism operative in response to the output from the projection detector such as to retract the cleaner unit away from the surface of the cylinder when the projection is detected by the projection detector means, thereby enabling the cleaner unit to clear the projection.