Noise abating impeller
US9599126B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Sep 11, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/188
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A noise abating impeller having a disc-shaped central hub and a plurality of blades extending radially outward from the central hub. The blades are symmetrically arranged in quadrants around the central hub and within two alternating quadrants, each blade is spaced an increasing distance apart from a prior adjacent blade and within the other two alternating quadrants, each blade is spaced a decreasing distance apart from a prior adjacent blade. The impeller also has a dividing rib located along the entire outer peripheral edge of the central hub and located along the center of the blades dividing each blade into a first blade half and a second blade half. The first blade half is offset from the second blade half.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.