Coating implements with material supply – Material flows through porous tool – Wick feed from within reservoir to tool
Patent
1978-04-17
1980-12-09
Bratlie, Steven A.
Coating implements with material supply
Material flows through porous tool
Wick feed from within reservoir to tool
401207, B43K 300, B43K 802
Patent
active
042381622
ABSTRACT:
A nib retaining assembly for a writing instrument to hold a capillary writing element or nib of small cross-sectional dimension in position against writing pressure, the nib retaining assembly including a nib receiving main longitudinal passageway formed by offset portions through which the capillary element extends. The capillary element is held by light staking within an axial bore of a nib holder which, in turn, is inserted into a seat at one end of the passageway. Because of the passageway offset portions and an intermediate camming surface, a capillary element inserted into the passageway is deflected around an internal shoulder so as to be forced into frictional engagement with the passageway walls to hold the small nib in writing position without disturbing the capillary action. In one embodiment of the invention, the passageway is defined by a nib retaining adapter inserted into a seat in the barrel; while in another embodiment the passageway is defined by the tubular barrel of the instrument. A single nib retaining assembly will accommodate nibs of many different diameters.
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Bratlie Steven A.
Sanford Research Company
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