Mechanical crayon pen with an internal cartridge for...

Details Mechanical crayon pen with an internal cartridge for... Mechanical crayon pen with an internal cartridge for...

2005-05-31

2005-05-31

Walczak, David J. (Department: 3751)

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

C401S192000, C401S019000, C401S085000

Reexamination Certificate

active

06899483

ABSTRACT:
A mechanical crayon pen with an internal cartridge to hold multiple crayon sticks has a transparent barrel (10) with an open top, an inner diameter and an inner surface, a thrust device (20) mounted inside the transparent barrel (10) and a thrust actuator (30) mounted on the open top of the transparent barrel (10). The thrust device (20) has an inner tube (21) movably mounted inside the transparent barrel (10). The inner tube (21) has an outer surface and an outer diameter smaller than the inner diameter of the transparent barrel (10) to form a space (13) in the mechanical crayon pen to store multiple crayon sticks. Multiple longitudinal grooves may be defined in the inner surfaces defining the space (13) to hold individual crayon sticks.

REFERENCES:
patent: 1296900 (1919-03-01), Zimdars
patent: 1575195 (1926-03-01), Fleming
patent: 2186869 (1940-01-01), Kahn
patent: 2483103 (1949-09-01), Raimondi
patent: 2491254 (1949-12-01), Dorfman
patent: 2512273 (1950-06-01), Harvey
patent: 2563551 (1951-08-01), Refsdal
patent: 6116799 (2000-09-01), Kageyama

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