Gasket for flange connections
US5785322A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1996 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Nov 15, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gasket made of a plate having an annular central opening with an annular region concentric to the central opening, the annular region having a plurality of concentric deformable ridges and opposite facing grooves in a first and second surface of the plate. A sealing material comprising a plurality of expanded intercalated graphite worms overlies the annular region with the particles fixed to adjacent particles by compression. The ridges and the sealing material provide a plurality of seals having varying density and thickness that incrementally changes from a first edge of the sealing material to a second edge. The gasket is manufactured by compress the worms and the plate between dies to form the sealing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.