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. 18, 2003
Filed:
Dec. 01, 2000
Ryobi Ltd., Hiroshima-ken, JP;
Abstract
A multiple color offset printer having a sheet feed mechanism in which a sheet feed cylinder receives a sheet in timed relation to a sheet transfer timing from the sheet feed cylinder to an impression cylinder. A blanket cylinder is divided into a plurality of uniform sized color sections around its periphery. The sheet feed cylinder has an outer peripheral length that is the same length as the peripheral length of each color section of the blanket cylinder. A sheet is transferred from the sheet feed cylinder to the impression cylinder once each time the sheet feed cylinder rotates a number of times equivalent to the number of color sections. A front lay cam rotates a single time during the same number of rotations as the number of the color sections. An abutment member moves from a projecting position in the sheet transport pathway to a retracted position separated therefrom a single time each time the front lay cam rotates a single time, so that a sheet is allowed to be supplied to the sheet feed cylinder.