The new CON-50 converter...
, December 30, 2013
The new CON-50 converter design with the moveable 'weight' is superior to the
original piston converter which had problems. With the old design, ink would
often get stuck up at the wrong end of the converter and ink flow was affected.
Now, with the help of the small, cylindrical weight, gravity will pull the ink
down towards the feed nipple when a Pilot pen is moved into the writing
Montblanc and Montegrappa also modified their converters in this way several
years ago. The weight makes up for a flow problem that often occurs with
converters that inhibit the intended exchange between air and ink (L. Waterman
realized this need). Many converters are not designed or made correctly and
extra air leaks into a converter throwing off the special balance between ink
going out and air coming in to replace the ink. If the ink doesn't move back
and forth in the converter the way water moves back and forth in a carpenter's
level, something is wrong! The new CON-50 helps make up for a converter
The redesigned CON-50 should fit most cartridge/converter Pilot/Namiki fountain
pens, like the 'Capless/Vanishing Point' and Pilot Prera fountain pens.