发明名称 MULTI-SHEET THERMOFORMING PROCESS
摘要 Disclosed is a thermoforming mold that defines a surface of a thermoformed part, a cavity recess that defines part of the interior space of the thermoformed part, a bond flange ridge, a vent recess and a chamber recess in an offal region outside of the surface of the thermoformed part, where the chamber recess, the vent recess and the cavity recess collectively define a continuous recess and where the part does not extend substantially beyond the bond flange ridge. Also disclosed is a manufacturing method including molding a first and second plastic sheet to thermoforming molds, impressing the first and second plastic sheets together between the thermoforming molds to define the part, a seam, a vent and a chamber then inserting a blow needle into the chamber and using that blow needle to move a fluid through the interior space of the part through the vent and then removing the offal and the chamber from the part. Also disclosed is a thermoformed part manufactured using the mold and method described above.
申请公布号 US2012248662(A1) 申请公布日期 2012.10.04
申请号 US201213467326 申请日期 2012.05.09
申请人 KLEM CHRISTOPHER S.;BUSCHKOETTER BRENT;KERKHOFF JAY A. 发明人 KLEM CHRISTOPHER S.;BUSCHKOETTER BRENT;KERKHOFF JAY A.
分类号 B29C49/60;B29C49/22 主分类号 B29C49/60
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