Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1981-03-30
1983-01-04
Schreyer, Stafford D.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1516
Patent
active
043674810
ABSTRACT:
A disposable pen-reservoir unit for a paper-chart recording instrument, includes a reservoir chamber surrounding the pen drive fork, with center of gravity of the unit located between the fork and writing tip, and the center of gravity below the line of bearing of the pen unit knife edge on the drive fork. Pen cross section is minimized. Reservoir diameter to depth ratio is minimized to keep the mass of the reservoir and ink supplies as close to the pen pivot axis as possible, to minimize inertia and dynamic over-shoot of the writing system. A closed system allows maximum utilization of ink supply with virtually no loss to evaporation.
REFERENCES:
patent: 3906513 (1975-09-01), Siegelman et al.
patent: 4017871 (1977-04-01), Hubbard
patent: 4164744 (1979-08-01), Freude
Esterline Angus Instrument Corporation
Schreyer Stafford D.
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