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. 05, 1991
Filed:
Apr. 11, 1989
Koji Ishii, Fuchu, JP;
Naoki Ikeda, Fuchu, JP;
Ryobi Ltd., Fuchu, JP;
Abstract
A sheet feeder in a sheet-fed printing press includes a detector 1 disposed adjacent to a feed portion of a paper feed or transfer cylinder 2 for detecting an improperly fed sheet of paper, and a gripper opening mechanism 6 actuatable for engaging a cam follower 13 to open a gripper 14 to release the improperly fed sheet of paper from the cylinder. A sheet discharge mechanism 16 has a sheet discharge roller 17 movable toward the cylinder for gripping therebetween the released sheet, and a stripper 18 movable toward the cylinder for stripping the improperly fed sheet and discharging it along a paper guide. An actuator 4.5 is connected to the detector for actuating the gripper opening mechanism and moving the sheet discharge roller and the stripper in response to the detection by the detector of the improperly fed sheet of paper.