Structure for mounting blades of a ceiling fan
US6062820A · kind A · utility
Inventor
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/34
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improvement in the structure for mounting blades of a ceiling fan, characterized in that a motor comprising a bottom formed with a plurality of threaded holes, an annular ring-like mounting secured to the bottom of the electric motor by screws and provided with a plurality of brackets each having a groove which gradually decreases in size from an upper portion toward an lower portion thereof, each of the blades provided with a rod having a tongue which gradually decreases in size from an upper end to an lower end thereof, the tongue being configured so that the upper end of the tongue has same size of the upper portion of the groove while the lower end of the tongue has same size of the lower portion of the groove thereby enabling the tongue to fit into the groove but not slide out thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.