Seal ring having an axis parallel intermediate ring
US4553763A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1984 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Mar 1, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3224
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal ring has a lip ring which is at least radially resilient and has a sealing lip for sealing about a reprocating or rotating machine part and a support surface axially spaced from the sealing lip. A reinforcing ring is radially spaced from the lip ring and coaxial therewith. An intermediate ring extends, in part, approximately parallel to the axis of the lip and reinforcing rings. It joins the lip ring at one end within the axial range of the support surface and, via the axis parallel part, joins the reinforcing ring at its other end within an axial region bounded by the sealing lip and the end of the support surface axially remote therefrom. This arrangement of the intermediate ring accommodates radial displacement of the machine part without displacing of the sealing lip from the machine part by tilting moments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.