My Welcoming friend from the "Introduce Yourself" forum wrote:
][...]I think you gave the first topic: The day after Theodor Kovacs invented the piston filling mechanism. Was it actually 1925 or better 1928? Was it really invented in Croatia?...
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Amazingly, when you look at Pelikan's Web site, they never mention the cotribution of Theodor Kovacs. Must national pride, ey?
The Brits at: http://www.jardin-d-eden.co.uk/acatalog/Pelikan_Pens.html seem to be more forthcoming.
"In 1925 the firm [Pelikan] purchased patents from Theodor Kovacs, subsequently hiring Kovacs and Carola Bako to perfect the first piston filing system. Theodor Kovacs was a Hungarian engineer who developed a filling system with a special piston designed to overcome the disadvantages of the manual filling systems of the time, namely eyedropper and perishable rubber-sac pens. In 1923 he patented his design, offering it to Pelikan and Montblanc, finally contracting in 1927 with Pelikan. A suction pump with differential spindle gear ensures clean, rapid and reliable filling - the piston of the pump automatically cleans the ink container and keeps it transparent - whilst the special ink feed for the nib ensures instant writing."
From the "World Knowledge Library" we get the following: "In Europe, German Günther Wagner 's office supplies production started in 1871, and "Pelikan" became a major producer of fountain pens in the 1890s. They acquired patents for the solid-ink fountain pens from the factory of Slavoljub Penkala from Croatia (patented 1907, in mass production since 1911), and the patent of the Hungarian Theodor Kovacs for the modern piston filler by 1925." http://www.masterliness.com/a/Fountain.pen.htm
Exactly the same is here:
http://www.arthistoryclub.com/art_history/Fountain_pen
ditto for Wikipedia:
http://en.wikipedia.org/wiki/Fountain_pen
http://www.fredericksburgartists.com/encyc...a/Fountain_pen/
http://www.absoluteastronomy.com/encyclope...ountain_pen.htm
The Dutch provide more detail for the people involved ("an amusing story"), but are not specific about the years: http://www.pw-akkerman.nl/Diversen/Boeken/...ala/Penkala.htm
So for all intents, I think we can accept that Kovacs patented the piston in 1923, Pelikan bought the patent from him in 1925, and he went to work for them in 1927.
What do you tink?