Gasket
US11536369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Apr 12, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L25/026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gasket having concentric or spiral serrations around the aperture on each side of the gasket, and wherein a facing is secured to such serrations, wherein each facing comprises a first layer which is in contact with a respective set of such serrations and a second layer which is in contact with the first layer. The first layer could be of a polyaryletherketone or polyimide, and the second layer could be of graphite or vermiculite. The serrations are designed to avoid damage to the first layer. An intact first layer can supply a property to the facing which may be absent in the second layer; for example, good dielectric properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.