Seal ring having a tapered surface, and a sealing device
US4243233A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1979 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Feb 6, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3456
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A novel sealing device of extremely simple and durable construction particularly adapted for use in sealing between the opposed flat end surfaces of two mutually movable members, for example, one for a rotary member and the other for a stationary member. The device includes a seal ring of novel construction having a flat sealing face and a tapered, conical sealing face formed on the opposite sides thereof, and an annular groove formed in said rotary member for receiving said seal ring, said groove being provided with a conical bottom surface. The seal ring is cut to provide itself with a radial expanding force. The annular groove has a radial breadth greater than that of said seal ring so that said seal ring is slidable under the action of said radially expanding force along said conical bottom surface of said groove in accordance with a change in the distance between said flat surfaces of said stationary and rotary members or in accordance with the increasing wear on said sealing faces of said seal ring to thereby urge at all times said flat and conical sealing faces in intimate sealing contact with the flat surface of said stationary member and the conical bottom surface of said …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.