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:
Nov. 02, 1976
Filed:
Aug. 04, 1975
Applicant:
Inventors:
Yasuyuki Hashimoto, Nishinomiya, JA;
Osamu Torii, Kyoto, JA;
Assignee:
Ancos Co., Ltd., Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K / ;
U.S. Cl.
CPC ...
401 30 ;
Abstract
A multi-color mechanical writing instrument which contains ink tubes or reservoirs, a rotary cam having a blocking section, an inner flange or a stopper which enables a writing tip to be pushed out which is positioned underneath a cam body with a push-bar inside a rear casing, and where the inner surface of the rear casing is shaped in the form of cam walls in order to have the rotary cam turn back and forth along the cam walls with the movement of pushing the push-bar to push the tip of an ink tube out or pull it back alternatively.