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US 9,945,213 B2Granted
Screen and method of making the same
AssigneeBaker Hughes, A Ge Company, LLC
InventorOmar H. Balcazar
Life of this patent
Estimating the term…
Abstract
A screen includes a framework of a first material having one or more openings therethrough defining a fluidic filter, and a substance of a second material positioned within the one or more openings in the framework and configured to be removable from the framework during an electrochemical reaction.
Claims9
A method of making a screen comprising;
- brazing particles within a bore of a plug with a filler metal of a first material, the particles being of a second material and the plug of a third material, the second material being more anodic than either of the first material or the third material;
- exposing the particles, the plug and the filler metal to a fluid;
- allowing an electrochemical reaction to occur;
- and
- removing the particles.
2 more elements
A method for making a screen comprising:
- disposing a material in a mass wherein the material defines interstitial spaces therein;
- depositing another material in the interstitial spaces during brazing, wherein the material is more anodic than the another material;
- and then
- dissolving the material during an electrochemical reaction leaving the another material as a fluid permeable framework.
1 more element
Dependencies are inferred from the claim text.