Gas injection means
AssigneeS. Smith & Son Pty. Ltd.
InventorDarryl R. Whitford
Life of this patent
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Abstract
Injection means for injecting a liquified gas such as sulphur dioxide into a container such as a wine storage tank and avoiding "icing up" the valve mechanism, wherein a three limbed "T" piece of conduit receives the liquified gas, each having a separately controlled valve, one of the limbs being connected to a source of gas which is not liquified, such as nitrogen, the nitrogen blowing the liquified sulphur dioxide gas out of the three limbed "T" piece when two of the valves are opened. The volume of the "T" piece accurately determined the dosage of sulphur dioxide.
Claims5
Gas injection means for injecting small quantities of gas into a large container, comprising:
- a conduit `T` piece having three limbs, a respective power operated valve in each said limb, logic control means connected to the valves for the control of a sequence of operation thereof,
- a first source of liquified gas which is to be injected into said container, a first said power operated valve being connected by first conduit means to said first source of liquified gas,
- a second source of other gas at the same pressure as said liquified gas, a second said power operated valve being connected by second conduit means to said second source of other gas,
- and the third said power operated valve connected by third conduit means to said second source of other gas and to said container, said sequence of operation being arranged to open the first power operated valve to allow flow of liquified gas from said first source into the conduit `T` piece, then close the first power operated valve but open the second power operated valve to blow said liquified gas from the `T` piece through said third conduit means into the container.
Dependencies are inferred from the claim text.