Fasteners having enhanced electrical energy dispersion properties
US11293474B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Systems and methods are provided for fabricating fasteners. One embodiment is an apparatus that includes a fastener. The fastener includes a head, a cylindrical shank that extends from the head and is dimensioned to engage in a fit with a corresponding hole, and a coating that is discontinuously speckled around a circumference of the shank and extends axially along the shank, leaving irregular portions of a surface of the shank exposed. The coating exhibits a higher lubricity than the surface, and the coating exhibits a higher dielectric withstand voltage than the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.