Mechanical seals
US5324048A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Oct 6, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3484
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention provides a sleeve for a cartridge-mounted mechanical seal, the sleeve being formed from two connected-together metallic components. The first component is made from a material having a relatively high chemical resistance, the second from a material having a relatively lower chemical resistance. The arrangement of the components is such that, in use as part of a seal, the sleeve has only its first component in contact with the fluid whose escape is being sealed. Such a sleeve is easier and cheaper to produce than one made entirely from a high chemical resistance material, and yet just as effective in use. The invention also provides a seal including such a sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.