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:
May. 10, 1994
Filed:
Dec. 02, 1992
Hideo Takeuchi, Chiba, JP;
Comtec Co., Ltd., , JP;
Abstract
A cleaning device is disclosed for an offset printing machine for quickly removing stains on a printed matter. A number of scrapers (7) are arranged in an axial direction of the surface of a printing drum (1) of the offset printing machine. The scrapers (7) are held by rods of air cylinders (8) which cause the scrapers to contact or be separated away from the surface of the drum (1). Solenoid valves are arranged corresponding to respective cylinders. The solenoid valves are controlled by a control unit (16). The position of hickey on the surface of the drum is designated from an information of a hickey position on the printed matter generated corresponding to the stain on the surface of the drum. When the associated solenoid valves are actuated, then the scrapers are brought into contact with the hickey position on the drum surface to scrape the hickey.