Mechanical pencil with refill cartridge

Details Mechanical pencil with refill cartridge Mechanical pencil with refill cartridge

1983-07-11

1986-08-05

Bratlie, Steven A.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 65, 401 89, 401 57, B43K 2100, B43K 2120

Patent

active

046039902

ABSTRACT:
A mechanical pencil comprising a lead feed mechanism built within the body thereof and a lead guide connected to the lead feed mechanism and having a cartridge reception bore of a diameter which is practically the same as the inside diameter of the body, wherein a cartridge containing a plurality of leads and having an outside diameter which is practically the same as the inside diameter of the body and the inside diameter of the cartridge reception bore of the lead guide is detachably fitted in the cartridge reception bore of the lead guide. In replenishing the mechanical pencil with leads, an old cartridge is replaced with a new cartridge.

REFERENCES:
patent: 1531427 (1925-03-01), Vierling
patent: 1698353 (1929-01-01), Vierling
patent: 2240604 (1941-05-01), Berger
patent: 2287894 (1942-06-01), Lynn
patent: 2533513 (1950-12-01), Savoie
patent: 2626592 (1953-01-01), Hedler
patent: 4240759 (1980-12-01), Matsumoto et al.
patent: 4247215 (1981-01-01), Leuthold et al.

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