Method of making a blow molded container having an insert molded

Details Method of making a blow molded container having an insert molded Method of making a blow molded container having an insert molded

1978-03-15

1980-07-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264516, 264525, 264536, 53453, 53140, B29C 1707, B29D 300

Patent

active

042139333

ABSTRACT:
There is disclosed a method and apparatus for blow molding a thermoplastic container. The blow molded container is fabricated conventionally from a downwardly descending thermoplastic extruded parison tubing which passes between sets of separated mold halves. One of the sets of mold halves is adapted to accommodate an insert positioned on a retaining wand. In another embodiment the wand is supported by means located externally of said mold halves and in some cases axially with respect to the molds.
When the molds close and the parison is conventionally blow molded the wand continues to support the insert while at the same time extends beyond the container so blow molded. The insert may be, for instance, a nozzle for a thermoplastic bottle having a cap molded thereabout having break away features whereby the cap may be removed.

REFERENCES:
patent: T856041 (1968-11-01), Delaire
patent: 2959812 (1960-11-01), Allen
patent: 3358062 (1967-12-01), Lemelson
patent: 3694534 (1972-09-01), Le Troadec
patent: 3919374 (1975-11-01), Komendowski

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