Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1980-02-11
1982-10-05
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
264530, 264532, 264537, 425526, B29C 1707
Patent
active
043527779
ABSTRACT:
Method and apparatus for forming oriented, blown objects of moldable plastic material requiring prolonged tempering cycles to obtain conditions suitable for orientation. Disclosure provides a multiplicity of tempering molds in spaced relationship to each other for retaining and tempering parisons prior to orientation and blowing in a tempering cycle, whereby the tempering molds receive and release parisons seriatim, and whereby the overall operating cycle is substantially unaffected by the number of tempering molds.
REFERENCES:
patent: 2359216 (1944-09-01), Hofmann et al.
patent: 4063867 (1977-12-01), Janniere
patent: 4219526 (1980-08-01), Mehnert
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