Back to results
US 5,989,170 AGranted
Insulating roll cover
AssigneeGlobal Consulting, Inc.
InventorsCharles M. Hart, James D. Rogers, Harry L. King, John J. Bartholomew
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeGlobal Consulting, Inc.
InventorsCharles M. Hart, James D. Rogers, Harry L. King, John J. Bartholomew
Estimating the term…
An insulating roller cover is now disclosed that provides a highly desirable combination of features. The cover is free from asbestos and is therefore of more desirable construction for handling and use. For the roller cover, at least substantially ceramic fiber is highly compressed, providing a dense and refractory, elevated temperature resistant insulating cover. The cover may itself serve as a load bearing surface; or may provide a foundation or protective media for annular discs or 10 sleeve members made of various, load bearing materials. These load bearing materials may be unable to resist direct contact with the shaft due to thermal shock or the differences in their respective expansion and contraction rates. Where impregnant is utilized with the highly compressed fiber, such will often comprise a colloidal substituent.
A ceramic fiber disc of accumulated ceramic fiber, said disc having an axial thickness of at least about 0.25 inch, with there being an inner aperture for said disc having an aperture dimension extending within the range from about 0.5 inch to about 8 inches, and with there being at least about 1 inch of accumulated ceramic fiber extending from the outer perimeter of said aperture to the outer perimeter of said disc, with said outer perimeter of said disc having a diameter within the range from about two inches to about 3 feet.
A ceramic fiber section having an axial thickness within the range from about 1 inch to about 2 feet, with there being an inner aperture for said section having an aperture dimension within the range from about 0.5 inch to about 8 inches, and with there being at least about 1 inch of ceramic fiber extending from said aperture outwardly to an outer perimeter surface, with said section having an overall diameter to said outer perimeter surface within the range from about 2 inches to about 3 feet, said fiber being compressed in an amount from about 50 percent to about 80 percent to provide a fiber density, basis dry fiber, within the range from about 16 to about 50 pounds per cubic foot.
Dependencies are inferred from the claim text.