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. 06, 2005
Filed:
Jun. 08, 2004
Tadao Odaka, Kawagoe, JP;
Tadao Odaka, Kawagoe, JP;
Kotobuki & Co., Ltd., Kyoto, JP;
Abstract
A composite writing utensil comprising a front barrel and a rear barrel, a cam body provided within the barrel unrotatable with respect to the rear barrel, and a slider unrotatable with respect to the front barrel and coupled to each of a plurality of writing shafts. The cam body includes a V-shaped cam projection projecting forward, a cam surface, and a restraining portion. The slider comprises a V-shaped cam projecting rearward, and a slidably-contacted surface extending along the cam that is urged against the cam surface. A relative rotation between front and rear barrels causes the slidably-contacted surface of the cam to slidably contact the cam surface and one of the cams to be restrained by the restraining portion, thus a point of the writing shaft coupled to the slider provided with the cam selectively projects from the point aperture of the barrel.