Air flapper valve assembly
US5137056A · kind A · utility
2Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Jul 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention relates generally to pulse combustion furnaces, and more particularly to an improved air flapper valve assembly for use in association therewith, such improved air flapper valve assembly having a valve body formed from an elastomeric material which results in significant reduction in air valve sound and vibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.