Banded cooling fan band having knit-line strength improvement
US11959489B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2021 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | May 6, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan includes a hub configured to be driven by motor to rotate about a fan rotational axis, blades that protrude radially from the hub and a band that surrounds the rotational axis and connects the tips of the blades. The band includes structurally-reinforcing thickened regions that protrude from outer surface of the band in a direction away from the hub. A thickened region is disposed between respective tips of each pair of adjacent blades. Each thickened portion bridges a knit-line of the band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.