Pen with slide plug and valve

Details Pen with slide plug and valve Pen with slide plug and valve

1989-05-25

1990-11-27

Bratlie, Steven A.

Coating implements with material supply

Including floating follower in reservoir

401151, 401198, 401205, 401230, 401232, 401209, B43K 710, B43K 804, B43K 518

Patent

active

049731807

ABSTRACT:
A tool for applying a liquid to a predetermined portion is disclosed. The tool has a main ink reservoir and a sub-ink reservoir. The sub-ink reservoir communicates with a pen body. The main ink reservoir communicates with the sub-ink reservoir through a valve mechanism. When ink inside the sub-ink reservoir is depleted upon writing, and a pressure inside the sub-ink reservoir is reduced, the valve mechanism is opened.

REFERENCES:
patent: 1661746 (1928-03-01), Caldwell
patent: 2099891 (1937-11-01), Johannesson
patent: 2211312 (1940-08-01), Barlow et al.
patent: 2435123 (1948-01-01), Biro
patent: 2762337 (1956-09-01), Beckwith
patent: 3397939 (1968-08-01), Berry

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