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US 9,897,220 B2Granted
Burst disk protected valve
AssigneeSodastream Industries Ltd.
InventorsAvi Cohen, Guy Danieli
Life of this patent
Estimating the term…
Abstract
A safety unit for a home carbonation machine that includes a valve to release gas from a sealed state at a first pressure and a backup element set to rupture at a second higher pressure when the valve malfunctions. The valve also includes a backup element housing which moves to vent the gas via an outlet during carbonation and which has a conduit to direct the gas to the backup element.
Claims9
A safety unit, the unit comprising:
- an inlet to receive gas from a home carbonation machine;
- a backup element housing having a conduit therethrough with an exit outside of said safety unit;
- a valve housing against which the backup element housing is pressable to close a closeable path between said valve housing and said backup element housing, said backup element housing being movable away from the valve housing by the gas when the gas is at a first pressure so as to open the closeable path to outside of said safety unit;
- and
- a backup element across said conduit, said conduit to redirect said gas towards said backup element when the backup element housing is stuck to said valve housing such that said closeable path is blocked,
- wherein said backup element is set to rupture at a threshold pressure that is greater than the first pressure and to release gas out of said conduit exit.
3 more elements
A method for a safety valve, the method comprising:
- receiving gas from a home carbonation machine;
- providing a closeable path between a valve housing and a backup element housing, the backup element being pressable against the valve housing to close the closable path, and movable away from the valve housing by the gas when the gas is at a first pressure so as to open the closeable path to outside of the safety valve;
- said carbonation machine opening said closeable path to outside of said valve housing during carbonation;
- receiving said gas in a conduit of said backup element housing when said closeable path is blocked by the backup element housing sticking to the valve housing, said conduit having an exit outside of said safety valve;
- and
- rupturing an integrated backup element of said safety valve in said conduit to release gas out of said conduit exit at a threshold pressure that is greater than the first pressure.
3 more elements
Dependencies are inferred from the claim text.