Truncated ball pen

Details Truncated ball pen Truncated ball pen

1976-02-26

1977-04-12

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

401145, 401209, G01D 1516, B43K 504, B43K 700

Patent

active

040178706

ABSTRACT:
Truncated pen with ball point writing tip, designed to contain a large volume liquid ink supply within a short axial length body includes a short axial length, wide diameter pen barrel. A liquid ink reservoir, housed inside of the barrel, is separated from a pressure regulation mechanism by a thin diaphragm. The pressure regulation mechanism constantly applies pressure on the ink supply contained within the ink reservoir, so that ink will be supplied to the writing tip regardless of the position in which the pen is disposed or the volume of ink remaining in the reservoir.

REFERENCES:
patent: 1980508 (1934-11-01), Tefft
patent: 2484298 (1949-10-01), Krahulec

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