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:
Sep. 17, 1991
Filed:
Nov. 06, 1987
Yasuyuki Hashimoto, Hyogo, JP;
Haruo Yamashita, Hyogo, JP;
Ancos Co., Ltd., Osaka, JP;
Abstract
A cap-less writing instrument having a mechanism which prevents the writing member from drying out. The writing instrument includes a hollow body; a writing member having a writing tip accommodated in the hollow body; a seal for sealing the writing tip, the seal including a seal cylinder provided with an opening at a front end thereof, a cover for sealing the opening of the seal cylinder, and a sealing member provided between the seal cylinder and the writing member; a mechanism for moving the writing member from the writing position to a retracted position; and a connector for connecting the writing member to the cover while allowing the writing member to move the writing position and causing the cover to close the opening of the seal cylinder. The connector is either a thread-like member or a bendable bar-like member.