Translations:Touch Down/3/en

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In this case, the compression takes place by passing the air in the cavity through not a hole on the tip of the cap but short lateral grooves at the two ends of the inner tube. When opening the grooves on the bottom allow the expansion of the bag, closing the piston the slide is sealed and the internal air compresses the sac, at the end of the course the other grooves allow the air to escape and the expansion of the sac loads the ink.

Related Patents

  • Patent n° US-1607048, of 1926-11-16, requested on 1925-07-18, of Edward Bergquist, Unbranded. Pen-filling mechanism.