Regulating apparatus for a pressure activated one-way valve
AssigneeO2i Ltd
InventorRobert Buckingham
Life of this patent
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Abstract
A regulating apparatus for a pressure activated one-way valve. The one-way valve is for mounting on a container to permit the release of gas from within the container and to control the ingress of atmospheric air. The regulating apparatus comprises a sealed and expandable chamber containing a gas. The chamber is operatively associated with the one-way valve such that when the chamber is exposed to elevated temperatures and/or reduced external pressure the gas within the chamber expands and exerts a force upon the one-way valve or portions thereof. The force tends to maintain the one-way valve in a closed or semi-closed configuration.
Claims17
A regulating apparatus for a pressure activated one-way valve, the one-way valve for mounting on a container to permit the release of gas from within the container and to control the ingress of atmospheric air into the container, the regulating apparatus comprising:
- a sealed and expandable chamber containing a gas, said chamber operatively associated with the one-way valve such that when said chamber is exposed to elevated temperatures and/or reduced external pressure said gas within said chamber expanding and exerting a force upon the one-way valve or portions thereof, said force tending to maintain the one-way valve in a closed or semi-closed configuration.
A regulating apparatus for a pressure activated one-way valve, the one-way valve for mounting on a container to permit the release of gas from within the container and to control the ingress of atmospheric air into the container, the regulating apparatus comprising:
- a sealed and expandable chamber, said chamber comprising a bladder formed from an upper and a lower layer that are sealed about their respective edges to form a sealed cavity therebetween, said cavity containing a gas, at least said lower layer of said bladder formed from an expandably resilient material, said bladder operatively associated with the one-way valve, when said bladder is exposed to elevated temperatures and/or reduced external pressure said gas within said bladder expanding and causing said bladder to exert a force against the one-way valve, said force tending to maintain the one-way valve in a closed or semi-closed configuration.
Dependencies are inferred from the claim text.