Abstract: An apparatus for producing a continuous rod having a capillary or capillaries, adapted for the writing nib of a writing instrument. The apparatus is comprised of a tubular body and a core arranged in the body. The core is provided with a plurality of radial slits. The apparatus is further provided with a restricted portion facing an outer periphery of the core for controlling the amount of melted material passed through the nozzle.
Type:
Grant
Filed:
April 8, 1981
Date of Patent:
December 7, 1982
Assignees:
Teibow Company Limited, Toplan Manufacturing Inc.
Abstract: An improved writing nib for a writing instrument comprising a cylindrical casing having an ink reservoir therein. Said nib has an inner capillary conduit which forms, in a transverse cross section of the nib, at least one straight slit which extends from the center of the cross section toward the outer periphery of said nib substantially in the radial direction of the cross section, and forms a plurality of radially spaced-apart arc shaped slits which are coaxial with each other about said center, a part of each of said arc shaped slits being interconnected with said straight slit.
Type:
Grant
Filed:
January 14, 1976
Date of Patent:
December 27, 1977
Assignees:
Toplan Manufacturing Inc., Teibow Company Limited