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:
Oct. 24, 2000
Filed:
Oct. 04, 1999
Shiro Sato, Ibaraki-ken, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A stencil printing machine includes a printing drum having a flexible ink-permeable circumferential wall adapted to receive a perforated stencil sheet around an outer circumferential surface thereof, the printing drum being rotated around a central axis thereof; a squeegee roller having an axis and situated inside the printing drum to be parallel to the central axis of the printing drum, the squeegee roller being rotated around the axis in synchronization with rotation of the printing drum with an outer circumferential surface thereof contacting an inner circumferential surface of the printing drum; a pair of bearing members attached to end portions of the axis of the squeegee roller for rotationally supporting the axis; a doctor roller having an axis and situated parallel to the squeegee roller at a predetermined distance away from the outer circumferential surface of the squeegee roller; a pair of adjusting screws situated perpendicular to the axis of the squeegee roller and fixed to the pair of bearing members, the pair of adjusting screws supporting the axis of the doctor roller so that the axis of the doctor roller is movably supported; a pair of worm wheels engaging the pair of adjusting screws, respectively; a pair of worm gears connected together and engaging the pair of worm wheels, respectively, so that when the pair of worm gears is rotated, the pair of worm wheels is rotated simultaneously.