The Fountain Pen Patent Archive

The instruments that put ink under pressure

Hard rubber barrel

Patent drawing showing a disassembled 19th-century fountain pen with labeled parts including barrel sections, quill conductor, nib, and small hardware components like screws and disks.IMPROVEMENT IN FOUNTAIN-PENSCharles Adolphus Rosefield · May 12, 1857Patent line drawing of a stylographic fountain pen shown in vertical cross-section, revealing the internal needle-valve, air-tube, spring-pressed valve, and vent-cap at the top, alongside a side view of the barrel's upper end and two small circular cross-sections showing the vent-cap in open and closed positions.STYLOGRAPHIC FOUNTAIN-PENJacob Ullrich · September 26, 1882A patent drawing showing a longitudinal cross-section of a slender stylographic fountain pen, revealing an inner flexible tube running from a rubber diaphragm near the cap down to a fine needle point, with labeled parts including the barrel (A), point-section (B), air-duct (D), needle (e), diaphragm (G), and protective cap (F).STYLOGRAPHIC FOUNTAIN-PENMarion H. Kerner · July 3, 1883Two vertical patent drawings of a hard rubber fountain pen in longitudinal section, one shown open with the point exposed and internal flexible tube and compressor visible, the other shown with the protective cap fitted over the nib end, with lettered parts labeling the barrel, tube, compressor, and nib.FOUNTAIN-PEN.Robert Christopher Frampton · January 29, 1889Patent 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, 1899Technical patent drawing showing a fountain pen barrel in longitudinal section with a pivoted lever, presser bar, and ink sack, along with detail views of the lever's frame and locking mechanism.PRESSER-BAR-ACTUATING LEVER FOR SELF-FILLING FOUNTAIN-PENS.William I. Ferris and Edwin F. Britten, Jr. · September 5, 1916Patent drawing of a fountain pen barrel cutaway showing a hinged lever mounted in a metal box frame that presses a bar to deflate an internal ink sack, with additional detail views of the lever, frame blank, and pivot pin assemblies.MOUNTING FOR PRESSER-BAR-ACTUATING LEVER FOR SELF-FILLING FOUNTAIN-PENSEdwin F. Britten, Jr. · May 29, 1917