Seal for a rotating member
US6719296B2 · kind B2 · utility
12Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/611
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A face seal assembly is provided having an annular seal body mounted in an axially moveable relationship to a seal support structure. A piston ring is disposed between the annular seal body and the seal support structure forming a secondary seal. A first locator spring, which is an annular wave spring, is disposed between said seal support structure and the piston ring to urge the piston ring in an axial direction. Optionally, a second locator spring, also a wave spring, may be disposed between the piston ring and the seal support structure for urging the piston ring in a radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.