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. 27, 2018
Filed:
Feb. 25, 2014
Mitsubishi Pencil Company, Limited, Tokyo, JP;
Mitsuru Endou, Gunma, JP;
Atsushi Nakashima, Gunma, JP;
Nobuyuki Nakajima, Gunma, JP;
Yuusuke Kyogoku, Gunma, JP;
Tetsuaki Akaishi, Gunma, JP;
Hiroshi Satou, Gunma, JP;
Yukako Shinmura, Gunma, JP;
Hisami Tamano, Gunma, JP;
MITSUBISHI PENCIL COMPANY, LIMITED, Tokyo, JP;
Abstract
The liquid substance advancing container is constructed such that the piston is formed of a sealing part in a front part of the piston that comes in sliding contact with an inner wall of a reservoir of the barrel body and a bar member in the rear part of the piston that has a threaded section on the inner or outer periphery, is movable in a axial direction and is restrained form moving with respect to the rotational direction, a front bar-like part extended forward from the handle is formed with a threaded section that is directly or indirectly screw-fitted to the threaded section of the bar member in the rear part of the piston, and, as the handle is rotated relative to the barrel body, the piston advances and then after full advance of the piston the front bar-like part can extend and retract by multiple stages.