One-way valve with flapper for vacuum bag
作者： Martin Calvo , Michael Burton , Linh Pham
DOI:
关键词:
摘要: A one-way valve allows air to be drawn from a collapsible, flexible, airtight bag (4) using vacuum source. When the source is removed, one-way- prevents re-entering bag. The assembly comprises base (14) attached wall (10) and having an opening (34), cap (16) coupled base, flapper (30) held in place by (18) connected living hinge (20). snapped onto after evacuation, maintains position so that stays closed, preventing admission of ambient into evacuated
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