Spherical annular seal member
US7717435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2007 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jul 11, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0635
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spherical annular seal member (58) includes: a spherical annular base member (56) defined by a cylindrical inner surface (52), a partially convex spherical surface (56), and end faces (54, 55); and an outer layer (57) formed integrally with the partially convex spherical surface (53) of the spherical annular base member (56). The spherical annular base member (56) includes a reinforcing member (5) made from a compressed metal wire net (4) and a heat-resistant material filling meshes of the metal wire net (4) of the reinforcing member (5), integrated with the reinforcing member (5) in mixed form, and containing expanded graphite and an organic phosphorus compound. The outer layer (56) includes a heat-resistant material constituted by a heat-resistant sheet member (6) containing expanded graphite and an organic phosphorus compound, and a reinforcing member constituted by a metal wire net (4) integrated with the heat-resistant material in mixed formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.