Back to results
US 2021/0170408 A1Published application
Microfluidic valves
AssigneeHewlett-Packard Development Company, L.P.
InventorsPavel KORNILOVICH, Daniel C. CURTHOYS, Alexander N. GOVYADINOV
Life of this patent
Estimating the term…
Abstract
A microfluidic valve may include a first portion of a liquid conduit to contain a fluid, a second portion of the liquid conduit to contain a liquid and a constriction between the first portion and the second portion and across which a capillary meniscus is to form between the fluid and liquid, the constriction comprising an edge along a ceiling of the constriction.
Claims15
A microfluidic valve comprising:
- a first portion of a liquid conduit to contain a fluid;
- a second portion of the liquid conduit to contain a liquid;
- and
- a constriction between the first portion and the second portion and across which a capillary meniscus is to form between the fluid and liquid, wherein the constriction includes an interface where the liquid conduit changes from a larger flow passage to a smaller flow passage, the constriction comprising an edge along a ceiling of the microfluidic valve.
1 more element
A microfluidic valve comprising:
- a first portion of a liquid conduit to contain a fluid;
- a second portion of the liquid conduit to contain a liquid;
- a constriction at which the first portion connects to the second portion and across which a capillary meniscus is to form between the fluid and liquid, wherein the constriction includes an interface where the liquid conduit changes from a larger flow passage to a smaller flow passage;
- and
- a liquid phobic surface in the first portion proximate the microfluidic valve.
2 more elements
A microfluidic valve comprising:
- a first portion of a liquid conduit to contain a fluid;
- a second portion of the liquid conduit to contain a liquid;
- a constriction at which the first portion connects to the second portion and across which a capillary meniscus is to form between the fluid and liquid, the constriction comprising an edge along a floor of the microfluidic valve, wherein the constriction includes an interface where the liquid conduit changes from a larger flow passage to a smaller flow passage;
- and
- a fluid actuator in the second portion proximate the constriction to displace fluid to break the capillary meniscus across the constriction.
2 more elements
Dependencies are inferred from the claim text.