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US 2024/0101479 A1Published application
Method of making a sprayable setting type compound
AssigneeUnited States Gypsum Company
InventorsRafael Bury, Joseph W. Schlude, David D. Pelot, Naveen Punati, Tyler Kincaid, Juan Ignacio Huitzil
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Abstract
A method of making a setting type compound by injecting an activator compound into a plaster compound wherein the activator compound tube is coaxial and within the plaster compound tube, each at the same flowrate, the same pressure and the same viscosity. The cross sectional transverse areas of an annulus containing the plaster compound and the hole in the annulus containing the activator compound are the same.
Claims17
A method of making a setting type compound comprising:
- pumping a plaster compound at a specified first pressure and a specified first flowrate through a first tube,
- injecting an activator compound at a specified second pressure and specified second flowrate through a second tube, the activator compound discharging from an exit at a downstream portion of the second tube located within and coaxial with the first tube to contact the plaster compound;
- wherein an annulus between the first tube and second tube at the exit has a first transverse cross-sectional area,
- wherein the second tube at the exit defines an inner second transverse cross sectional area,
- wherein the first cross-sectional area is equal to or greater than the second cross-sectional area, and
- mixing the plaster compound with the activator compound in about a 1:1 to 10:1 volume ratio in a static mixer to yield the setting type joint compound.
3 more elements
Dependencies are inferred from the claim text.