Control of fluid flow using precisely positioned disc
US4369812A · kind A · utility
48Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1981 |
| Grant date | Jan 25, 1983 |
| Priority date | — |
| Expiry date | Feb 18, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7879
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for the control of fluid flow using a flexible disc that is positioned in a control channel and restricted to movement along the longitudinal axis of the channel. Closure control is exercised by moving the disc into closer contact with a ring seat that is essentially self-purging of debris. Since the disc is confined to essentially longitudinal movement, distortion due to random lateral movement is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.