Low capacity chlorine gas feed system
AssigneeUnited States Filter Corporation
InventorsDavid Haruch, Mario D. Cabrera, Albert Van Grouw, Gregory Stockinger
Life of this patent
Estimating the term…
Abstract
A switchover device for providing a continuous supply of a gas such as chlorine to a water system. The switchover device includes an outlet in communication with a chamber as well as with a vacuum source and two inlets also in communication with the chamber. The switchover device further contains a shuttle that may be positioned to isolate the first inlet, the second inlet, or neither inlet.
Claims19
A switchover device for a gas supply system comprising:
- an outlet in fluid communication with a vacuum source and a chamber;
- a first inlet in fluid communication with a first gas source and with the chamber;
- a second inlet in fluid communication with a second gas source and with the chamber, the second inlet and the first inlet opposed to each other in the chamber;
- and
- a slidable shuttle, comprising a first end configured to seal the first inlet and a second end configured to seal the second inlet, the shuttle configured to isolate one of the first inlet, the second inlet, or neither inlet from the chamber.
A method for providing gas to a gas supply system comprising the steps of:
- providing a first gas to a vacuum injector from a first gas source;
- depleting a portion of the gas from the first gas source;
- providing a second gas to the vacuum injector from a second source;
- and
- further depleting the gas from the first gas source while the second source is providing gas to the vacuum injector.
A switchover device for supplying gas to a gas supply system comprising:
- a valve having an outlet, a first inlet and a second inlet, the outlet in fluid communication with a vacuum source, the first inlet in fluid communication with a first gas source wherein the first gas source is a gas cylinder, and the second inlet in fluid communication with a second gas source;
- and
- means for selectively isolating the first inlet from the outlet, the second inlet from the outlet, or neither inlet from the outlet.
A switchover device for a gas supply system comprising:
- an outlet in fluid communication with a vacuum source and a chamber;
- a first inlet in fluid communication with a first gas source and with the chamber;
- a second inlet in fluid communication with a second gas source and with the chamber;
- a shuttle movably configured to isolate one of the first inlet, the second inlet, or neither inlet from the chamber;
- and
- a holding device for maintaining the shuttle position, wherein the holding device comprises a notch and a plunger.
Dependencies are inferred from the claim text.