Writing utensil and method of manufacturing the writing utensil

Details Writing utensil and method of manufacturing the writing utensil Writing utensil and method of manufacturing the writing utensil

1996-03-05

1999-08-17

Bratlie, Steven A.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401251, 285260, B43K 1500, B43K 700

Patent

active

059383615

ABSTRACT:
A novel writing utensil in which an ink holder unit can be inserted into, and extracted from, a housing/main shaft. Helicoid screw threads are formed on the outer circumferential surface of a coupling portion of the ink holder unit or an inner circumferential surface of the main shaft. The main shaft or the outer circumferential surface of the ink holder unit without the screw threads is made of an elastic material for allowing the screw threads to bite thereinto. The coupling portion of the ink holder unit can be threaded into the main housing or pressed in a straight line thereinto. The ink holder unit can be extracted by relatively rotating the ink holder unit and main housing.

REFERENCES:
patent: 3255658 (1966-06-01), Gargrave
patent: 3255795 (1966-06-01), Ginsburg
patent: 3408092 (1968-10-01), Appleton
patent: 3471179 (1969-10-01), Sixt
patent: 3797865 (1974-03-01), Ballentine
patent: 4755075 (1988-07-01), Leem
patent: 4770560 (1988-09-01), Ott
Patent Abstracts of Japan--Publ. No. 06179298 A.

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