Method and apparatus for producing a thin-walled article of synt

Details Method and apparatus for producing a thin-walled article of synt Method and apparatus for producing a thin-walled article of synt

1981-03-10

1982-11-16

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264511, 264571, 264134, 264136, 264DIG78, 425504, 425116, 425123, 425405R, 425DIG60, 425DIG238, B29C 500

Patent

active

043594379

ABSTRACT:
A method of manufacturing a thin-walled article of synthetic resin, in particular a large-sized article, while using an inner and an outer template, the synthetic resin being supplied via one or more apertures in one of the two template portions and whereby a partial vacuum is maintained via one or more air discharge apertures downstream of the synthetic resin front.

REFERENCES:
patent: 2863797 (1958-12-01), Meyer
patent: 2903389 (1959-09-01), Fujita
patent: 2913036 (1959-11-01), Smith
patent: 3123509 (1964-03-01), Toegel
patent: 3250839 (1966-05-01), De Luca
patent: 3669589 (1972-06-01), Bordat
patent: 3775214 (1973-11-01), Winters
"Wirtschaftliche Fertigung von Grossflachigen GFK-Teilenim Vakuum Injektions-Verfahren," Schik et al., Kunststoff, vol. 21, No. 10, 10-1971.

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