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:
Aug. 20, 2002
Filed:
Dec. 06, 2001
Makoto Ono, Tano-gun, JP;
Hitoshi Nakamura, Fujioka, JP;
Tadashi Koriki, Sawa-gun, JP;
Tamotsu Eguchi, Fujioka, JP;
Seiichi Kobayashi, Yokohama, JP;
Abstract
A click type writing implement includes: a ball-pen refill composed of a point assembly at the front end thereof, an ink storage at the rear thereof and a pressurizing mechanism of a pumping type at the rear of the ink storage; an arrangement for holding the refill and engaging it so as to allow the tip of the point assembly to be projected from and retracted into the front end; and a clicking mechanism for keeping the tip of the point assembly projected, the clicking mechanism comprising: a first clicking mechanism for advancing and contracting ink by a short stroke and a second clicking mechanism for advancing and contracting ink by a large stroke, so that the rear end of ink can be pressurized at two levels so as to promote flow of ink toward the point assembly.