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US 4,834,400 AGranted
Differential surface roughness dynamic seals and bearings
AssigneeUniversity of New Mexico
InventorAlan O. Lebeck
Life of this patent
Estimating the term…
Abstract
A dynamic seal or bearing interface having areas with different roughnesses. The different surface areas both provide asperity tip load support for the opposing interface.
Claims16
A dynamic seal or bearing interface having a surface comprising:
- a first interface area which, as it wears, provides a first amount of surface roughness which provides asperity tip load support;
- and
- a second interface area which, as it wears, provides a second amount of surface roughness which provides asperity tip load support, said second amount of surface roughness within said second interface area being different from said first amount of surface roughness within said first interface area.
Dependencies are inferred from the claim text.