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US 10,125,988 B2Granted
Two-stage fluid control valve having a first stage mechanical valve and a second stage microvalve
AssigneeDunAn Microstaq, Inc.
InventorsE. Nelson Fuller, Parthiban Arunasalam, Joe A. Ojeda, Sr.
Life of this patent
Estimating the term…
Abstract
A two-stage fluid control valve includes a first stage mechanical control valve movable between an open position and a leak-free closed position, and a second stage microvalve configured to control the flow of fluid through a fluid outlet of the two-stage fluid control valve when the first stage mechanical control valve is in the open position.
Claims18
A two-stage fluid control valve comprising:
- a first stage mechanical control valve movable between an open position and a leak-free closed position;
- and
- a second stage microvalve configured to control the flow of fluid through a fluid outlet of the two-stage fluid control valve when the first stage mechanical control valve is in the open position;
- wherein a seal is disposed between the first stage mechanical control valve and the second stage microvalve, and wherein the seal is configured to provide a fluid-tight seal between the first stage mechanical control valve and the second stage microvalve such that fluid is prevented from flowing therebetween when the first stage mechanical control valve is in the leak-free closed position.
1 more element
A two-stage burner control valve for a gas range and a gas oven comprising:
- a first stage mechanical control valve movable between an open position and a leak-free closed position;
- and
- a second stage microvalve configured to control the flow of gas through a fluid outlet of the two-stage burner control valve when the first stage mechanical control valve is in the open position;
- wherein the second stage microvalve is further configured to control one of a flame and temperature of the burner.
1 more element
Dependencies are inferred from the claim text.