Process of molding a catheter

Details Process of molding a catheter Process of molding a catheter

1975-05-27

1977-01-25

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Making hole or aperture in article

264278, 264328, B29C 114

Patent

active

040051668

ABSTRACT:
Disclosed is an apparatus and process for the molding of hollow articles. The apparatus comprises a mold cavity with a wire longitudinally disposed therein. A follower is slidably disposed about the wire in close abutment with both the wire and inside wall of the mold cavity. The follower is preferably disposed in the mold cavity toward its proximal end so as to provide an annular space between the wire and inside wall of the mold. In practice, material to be molded is injected into the annular space at the proximal end of the mold cavity and flows longitudinally toward the distal end of the mold cavity while pushing the follower along the wire ahead of it.

REFERENCES:
patent: 2314262 (1943-03-01), Winder
patent: 2367235 (1945-01-01), Morin
patent: 2465799 (1949-03-01), Gravesen
patent: 3142716 (1964-07-01), Gardener
patent: 3311690 (1967-03-01), Fischer
patent: 3363040 (1968-01-01), Aoki
patent: 3442987 (1969-05-01), Sentementes
patent: 3477101 (1969-11-01), Fritsch
patent: 3910743 (1975-10-01), Farrell

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