Inventors:
Clinton Earl Miller - Los Angeles CA
Nabil Gabriel Naggar - Los Angeles CA
International Classification:
B43K 112
D04H 314
Abstract:
Relates to continuous methods of making writing points from filamentary thermoplastic materials differing in denier, whereby writing characteristics are improved and the ink content of porous reservoirs is more efficiently utilized. It is particularly directed to the methods of manufacturing such writing elements from yarns differing in denier of filaments whereby the size and location of ink-conveying channels in the cross-section of the writing point or element and the writing characteristics thereof are uniformly and positively controlled and maintained by being able to place and retain a particular position for each yarn during manufacture and bonding, and to means whereby such control can be attained.
