Invention Grant
- Patent Title: Preform assembly, double container, and method of manufacturing double container
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Application No.: US17598431Application Date: 2020-03-05
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Publication No.: US11851235B2Publication Date: 2023-12-26
- Inventor: Takanori Suzuki , Osamu Jono
- Applicant: YOSHINO KOGYOSHO CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: YOSHINO KOGYOSHO CO., LTD.
- Current Assignee: YOSHINO KOGYOSHO CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP 19064660 2019.03.28
- International Application: PCT/JP2020/009504 2020.03.05
- International Announcement: WO2020/195688A 2020.10.01
- Date entered country: 2021-09-27
- Main IPC: B65D1/02
- IPC: B65D1/02 ; B65D79/00 ; B29B11/04 ; B29C49/08 ; B29C49/22 ; B29C49/02 ; B29K67/00 ; B29L31/00

Abstract:
A preform assembly includes: an outer preform that includes an outer mouth portion and a stretch portion connected to the outer mouth portion and in which a recess extending in a vertical direction is provided on an inner surface of the stretch portion; and an inner preform that includes an inner mouth portion and a stretch portion connected to the inner mouth portion, wherein an outside air introduction port communicating with a part between the outer preform and the inner preform is provided in a mouth portion composed of the outer mouth portion and the inner mouth portion located on an inner side of the outer mouth portion.
Public/Granted literature
- US20220177180A1 PREFORM ASSEMBLY, DOUBLE CONTAINER, AND METHOD OF MANUFACTURING DOUBLE CONTAINER Public/Granted day:2022-06-09
Information query
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