Composite writing utensil

Details Composite writing utensil Composite writing utensil

2005-09-06

2005-09-06

Yu, Justine R. (Department: 3751)

Coating implements with material supply

Plural tools including projectable and retractable tool

Selective individual projection by single actuator

C401S030000, C401S031000

Reexamination Certificate

active

06939069

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.

REFERENCES:
patent: 4268183 (1981-05-01), Sekiguchi
patent: 4283151 (1981-08-01), Sekiguchi
patent: 5056947 (1991-10-01), Kubota et al.
patent: 5306085 (1994-04-01), Kobayashi
patent: 5642953 (1997-07-01), Kobayashi et al.
patent: 5890825 (1999-04-01), Kageyama et al.

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