Cylinder valves and methods for inhibiting the formation of contaminants in cylinders and cylinder valves
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United States of America Patent
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Oct 24, 2023
Grant Date -
Aug 26, 2021
app pub date -
May 15, 2019
filing date -
Jun 22, 2018
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Abstract
A method for inhibiting the formation of carbonyl compounds in a gas cylinder containing carbon monoxide wherein the gas cylinder is in fluid communication with a valve assembly wherein the valve assembly connects to a threaded opening in the gas cylinder by a threaded assembly by coating interior and exterior components of the valve assembly selected from the group consisting of an inlet port, an outlet port, a diaphragm and a lower spindle with an amorphous hydrogenated silicon compound. A valve assembly containing the coated interior and exterior components is also disclosed.
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