The Fountain Pen Patent Archive

The instruments that put ink under pressure

Piston filler

A patent drawing sheet showing multiple views of an early hard-rubber fountain pen, including its cap, nib, feeding-tube with internal spring, and a full-length assembled pen labeled Fig. 15 with reservoir tube, piston rod, and pointed nib.IMPROVED FOUNTAIN-PENNewell A. Prince · January 23, 1855A technical patent drawing showing a fountain pen nib with a notched heel (labeled A, B, C, D, E), a matching notched feeding-tube (A', B', T), a cylindrical main reservoir-tube (R to L), and a cross-section of the assembled pen with piston-rod and piston-head (P, M, N) inside the barrel.IMPROVEMENT IN FOUNTAIN-PENS.Newell A. Prince · December 25, 1855Patent drawing of an 1856 fountain pen showing six figures: an assembled pen and case, a cutaway with internal piston and rod, separate case sections, and detailed close-ups of the nib and slide-valve mechanism at the pen tip.IMPROVED FOUNTAIN-PENHenry A. Brown and James Wiley · February 19, 1856Patent drawing of an early fountain pen showing a long tapered tube with a cap and internal rod at top, an ink reservoir plate and nib at the bottom, with two small detail views of the piston's underside labeled Fig. 2 and Fig. 3.FOUNTAIN-PENA. F. Warren and C. M. H. Warren · March 11, 1856Patent drawing of an 1861 fountain pen showing an external perspective view with a pointed nib and threaded grip attached to a small funnel, alongside a longitudinal cross-section revealing an internal conducting rod, valve, and piston mechanism running the length of the pen holder.IMPROVEMENT IN FOUNTAIN-PENSP. C. Clark · February 5, 1861Patent drawing showing a slender hard rubber fountain pen in cross-section with an internal piston rod, threaded valve mechanism, and a separate key and cap shown alongside.IMPROVEMENT IN FOUNTAIN-PENSG. A. Becker · January 25, 1870Patent drawing showing four views of a fountain pen: a full side view with crosshatched grip, two cutaway longitudinal sections revealing an internal ink reservoir, sliding extension tube, and piston-rod filling mechanism, and a small end-view cross-section.FOUNTAIN-PENHermann Madeheim · February 19, 1884Patent drawing of a hard rubber fountain pen shown in longitudinal section, revealing an internal piston-and-valve pump within the barrel, a threaded end plug, a feed bar leading to the nib, and several detail views of the valve, piston, and pump-actuator mechanisms.FOUNTAIN-PENArthur A. Waterman & Frederick W. Stevens · September 19, 1899