Fan design with an impact absorbing structure
US11506223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Nov 16, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/703
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved fan design with an impact absorbing structure is provided. The improved fan design includes a lower fan assembly connected to an upper fan assembly using a mounting bracket. The lower fan assembly may include a fan base having multiple supporting legs which are preferably rotatably connected to the lower fan assembly. The upper fan assembly of the present invention may include a fan motor and fan blades enclosed within a protective structure. The protective structure of the present invention may preferably include an outer fan cover, a fan grille, an external cage and a perimeter shock absorbing ring extending around the circumference of the outer fan cover. The perimeter shock absorbing ring may include an inner surface, an inner absorption layer and an outer surface. The inner absorption layer may preferably include one or more flexible ribs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.