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:
Feb. 09, 1993
Filed:
Dec. 23, 1991
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A compact portable stamp device which can prevent the ink stains on an operator and his/her clothes and the occurrence of nonuniform printing and, further, simplifies the operation of changing the color of the ink. The stamp device comprises a heat sensitive stencil paper fed between first and second rollers. The heat sensitive stencil paper has a laminate structure including a thermoplastic film layer and a porous carrier layer. The stamp device has a stencil paper feeding unit for drawing the heat sensitive stencil paper from the first roller and winding the heat sensitive stencil paper around the second roller, and elastic ink impregnated member, provided in the feed path of the heat sensitive stencil paper between the first and second rollers, and a moving unit for moving the ink impregnated member between a first position where the ink impregnated member is separate from the heat sensitive stencil paper and a second position where the ink impregnating member is in close contact with the heat sensitive stencil paper. The ink impregnating member is brought into close contact witht the heat sensitive stencil paper to exude ink from the ink impregnated member through a perforated portion of the thermoplastic film thereby transferring an image onto a printing paper.