Acid/slurry governor seal assembly for centrifugal pumps
US5667356A · kind A · utility
7Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | May 6, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/164
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Centrifugal pumps for handling acids or slurries incorporate a ball bearing assembly as the force-responsive governor to control opening and closing of a fluid path leading from the expeller region into a seal, the seals being composed of hard, low-friction sealing materials for handling acids and of resilient materials for handling slurries owing to the solids content in the slurries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.