A blow moulding apparatus, comprising: a number of mould shells that has a seal around the periphery in the gap between the mould shells to prevent ingress of air to mould.
β¦ LIBER β¦
Improved joint for electrochemical devices
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 43 KB
- Volume
- 2006
- Category
- Article
- ISSN
- 1350-4789
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β¦ Synopsis
Isolation damper with air-tight seal
Applicant: Daniel Environmental Co, USA This patent describes an isolation damper for use in air delivery trunking. The damper -which may be elliptical -is provided with a seal to provide an air-tight cutoff. It can be used to shut off airflow to prevent circulation of hazardous contaminants in clean environments.
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