Cover plates for tank heads
US4295789A · kind A · utility
0Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1979 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Aug 9, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49327
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The axial flow fan includes a hub, an annular rim, at least one structural disc welded to and extending between the hub and the rim and a plurality of blades extending outward from the rim. The improvement comprises at least one nonstructural cover plate which is welded to and extends between the hub and the peripheral edge of the rim. Generally there will be a nonstructural cover plate at each end of the hub and rim with the cover plates being of thinner cross section than the structural disc. The cover plates are normally welded along the terminal edge surfaces of the rim as well as the hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.