Sealing device between movable parts
US4504069A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1983 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Dec 22, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/441
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The sealing device is intended for sealing in one direction between the cooperating surface of a cylindric cavity and shell surface of a cylindric cavity and shell surface of a spindle (3) movable therein. One or the other surface is provided with an annular groove (9), in which a sealing ring (8) is located, which is slightly movable in axial and radial direction and intended to minimize fluidum leakage in axial direction between the cooperating surfaces. The ring (8) has small cross-sectional dimensions in relations to the spindle (3) and enclosing cavity. The ring is slim but is of rigid material. The sealing surface (12) of the ring is slightly conic. The ring abuts on the radial inner surface (11) of the groove along a supporting surface, which is annular and has substantially smaller height than the cross-sectional height of the ring and is located adjacent the sealing surface. One or more grooves are located in peripheral direction about the inner surface of the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.