Blades for axial fans
US4738594A · kind A · utility
36Cited by
19References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1986 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Feb 5, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/303
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan blade in which a leading edge piece made of a hard sintered product is attached to the leading edge of a fan blade main body over along substantially 3/4 to 1/4 from the tip thereof so that a useful life of the fan blade is prolonged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.