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US 10,370,259 B2Granted
Barrier with superhydrophobic coating
AssigneeIllinois Tool Works Inc.
InventorClyde H. Bachand
Life of this patent
Estimating the term…
Abstract
A barrier of open pore mesh provided with a superhydrophobic coating to prevent wetting when exposed to an aqueous liquid. The disclosed barrier could be a mesh screen or a liquid pervious membrane. The barrier is useful in a filter media containment to permit egress of gas, usually air, from the containment even when subjected to an aqueous liquid containing environment.
Claims14
A canister comprising:
- a housing having a fluid inlet to receive a fluid into the canister and a fluid outlet through which the fluid exits the canister, the housing also including a vent separate from and spaced apart from the fluid inlet for egress of a gaseous medium from the housing, wherein the fluid inlet and the vent are positioned in the housing such that both the fluid inlet and the vent come into contact with the fluid when the fluid is received into the canister through the fluid inlet;
- and
- a gas pervious barrier disposed over the vent, the gas pervious barrier comprising a mesh or a membrane coated with a superhydrophobic coating, the superhydrophobic coating consisting essentially of amorphous silica and a polymer that does not contain fluorine or per-fluoro compounds, wherein the mesh or membrane that is coated with the superhydrophobic coating defines open pores through which the gaseous medium flows through the mesh or membrane.
A canister comprising:
- a housing having an inlet through which a fluid is received into the housing, the housing also including a vent having a superhydrophobic coated gas pervious barrier with one or more pores through which gas exits from the housing,
- wherein the inlet and the vent are positioned in the housing such that both the inlet and the vent come into contact with the fluid when the fluid is received into the housing through the inlet, and
- wherein the superhydrophobic coated gas pervious barrier prevents closure of the one or more pores by the fluid while allowing the gas to exit the housing.
Dependencies are inferred from the claim text.