Two-way valve closing at balanced pressure condition

Details Two-way valve closing at balanced pressure condition Two-way valve closing at balanced pressure condition

E - Fixed Constructions

03

B

137/108

E03B 7/00 (2006.01)

Patent

CA 1092485

ABSTRACT OF THE DISCLOSURE A two-way valve closing at balanced pressure condition for use on heat-sealable containers, comprising a body having in- termediate the two ends thereof a flange for connection or fixing to the container, a perforated lid or cap coupled to each end of the body and defining with the latter a chamber having positioned therein a flexible member cooperating with a passage opening on the flange side opposite to that where the member is positioned: the lids or caps are displaceable from a first position to a se- cond position corresponding to full shut off of the associated pas- sage. The valve allows for air evacuation from a closed contai- ner successive introduction of a different gas into the container, and is completely closed upon reaching balance conditions between gases inside and outside the container.

283311

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