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US 6,270,026 B1Granted
Strain relief main shaft assembly
AssigneeThe Babcock & Wilcox Company
InventorsRobert R. Piepho, David W. Gerber
Life of this patent
Estimating the term…
Abstract
An improved main shaft for a coal pulverizer having a selected portion of the main shaft provided with an intervening material such as a thermally sprayed ceramic coating.
Claims5
A main shaft for a vertical spindle coal pulverizer which provides increased resistance to fretting damage of a shaft yoke end portion of said main shaft which is interference fit into a yoke bushing of the coal pulverizer, comprising an intervening ceramic coating material on said shaft yoke end portion which is a member selected from the group consisting of chromium oxide and tungsten carbide.
Dependencies are inferred from the claim text.