Method of molding a perforated article
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United States of America Patent
Stats
-
Aug 30, 1983
Issued Date -
N/A
app pub date -
May 29, 1981
filing date -
Mar 14, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of molding a perforated article involves supplying a formable material to a preforming chamber where the material is compressed so that it substantially assumes the cross-sectional shape of the preforming chamber. The formable material is then transferred under compressive forces to a molding chamber, which has a volume less than the volume of the preforming chamber and a shape which substantially matches the shape of the perforated article to be molded. The formable material is then heated in the molding chamber to cure it and thereby form the perforated article.
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- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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