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:
Jun. 28, 1994
Filed:
Feb. 01, 1993
Junnosuke Katsuyama, Tokyo, JP;
Takanori Hasegawa, Tokyo, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
Ink leakage from the trailing edge of the stencil master plate is avoided and a stable ink supply is ensured when using a D-type printing drum including a concentric cylindrical part extending over a major part of an entire circumference of the printing drum and defining an ink permeable region, a non-concentric cylindrical or planar part extending over a minor part of an entire circumference of the printing drum and having a central axial line different from that of the concentric cylindrical part, and an outer circumferential surface on which a stencil master plate is to be mounted without losing the benefit of reducing the displacement of the press roller. A squeegee blade is in contact with the inner circumferential surface of the D-type printing drum, and, in order to maintain the contact between the squeegee blade and the inner circumferential surface of the D-type printing drum over its entire circumference and keep the contact pressure between the squeegee blade and the inner circumferential surface of the D-type printing drum at a prescribed level, a cam is provided for controlling the contact pressure between the squeegee blade and the inner circumferential surface of the D-type printing drum in synchronism with the rotation of the D-type printing drum.