Contained ceramic fastener
US9175710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Feb 9, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B37/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ceramic fastener includes a ceramic body portion, and a containment layer disposed around the ceramic body portion. The containment layer retains pieces of the ceramic body portion when the ceramic body portion is subjected to a torque sufficient to fracture the ceramic body portion. The fastener can be a nut, and the containment layer can be disposed around one or more of the top, bottom and side surfaces of the nut. The containment layer can be a metal shroud having a thickness from 0.01 to 0.125 inches. The ceramic body portion can be alumina or zirconia. A thread insert may be disposed within a fastener bore of the ceramic body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.