Method of removing foreign matter from preform and apparatus for removing foreign matter from preform
US11104566B2 · kind B2 · utility
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5References
6Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Mar 22, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
To facilitate removal of foreign matters from a preform. The preform in an inverted position with a mouth portion thereof facing down is being continuously transferred, filtered air is blasted into the preform through the mouth portion of the preform, and at the same time, air is sucked from the side of the mouth portion of the preform. Foreign matters can be more easily discharged from the preform because of the flow of air and the weight of the foreign matters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.