Sealing assembly having liquid-filled seal
US8794639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L41/088
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing assembly for a liquid conveying system includes a first structure defining an aperture, such as a pipe receiving aperture. A second structure, such as a pipe is received in the aperture. And an annular seal is disposed within the aperture for radially sealing between the first structure and the second structure. The seal includes an outer radial portion embedded in the first structure and an inner radial portion in sealing engagement with the second structure. The inner radial portion defines an internal cavity containing a substantially incompressible fluid or gel that is movable within the cavity to provide a dynamic seal with the second structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.