Fan blade assembly
US5829956A · kind A · utility
Inventors
Key dates
| Filing date | Apr 22, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Apr 22, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/326
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan blade assembly having a plurality of arranged about a central hub having an axis of rotation, the blades projecting from the hub radially outward from the axis of rotation. Each blade has a blade length, with a proximal end attached to the central hub and a distal end radially outward from the central hub. The assembly has at least one vane member with a plurality of vane segments, each vane segment joining a first blade with an adjacent second blade at a place along the blade length located radially inward from the distal end and radially outward from the proximal end of the blades. The assembly further having a plurality of recesses in the central hub adapted to receive the proximal end of blades of an adjacent blade assembly to permit stacking of like assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.