Invention Grant
US08168099B2 Injection molding process for making laboratory test-tubes and mold to be used in the molding process thereof
有权
用于制造实验室试管和模具的注射成型方法用于其模制过程中
- Patent Title: Injection molding process for making laboratory test-tubes and mold to be used in the molding process thereof
- Patent Title (中): 用于制造实验室试管和模具的注射成型方法用于其模制过程中
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Application No.: US12832192Application Date: 2010-07-08
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Publication No.: US08168099B2Publication Date: 2012-05-01
- Inventor: Renzo Chiarin
- Applicant: Renzo Chiarin
- Applicant Address: IT Arzergrande, Padua
- Assignee: Vacutest Kima S.r.L.
- Current Assignee: Vacutest Kima S.r.L.
- Current Assignee Address: IT Arzergrande, Padua
- Agency: Shoemaker and Mattare
- Priority: ITPD2005A0091 20050406
- Main IPC: B29C45/34
- IPC: B29C45/34
Abstract:
A laboratory test tube is formed between male and female mold elements by injection of molten plastic material. The female element has a bottom element formed by first and second alternating complementarily shaped wedges. At least the second wedges are able to move under the pressure of the molten plastic from a rest position to an operative position in order to form slits which allow air, but not molten plastic, to exit from the mold.
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