Folding fan
US6213716A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/34
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Ready to hang ceiling fans that do not require any assembly from the shipping box. A first embodiment has foldable mounting arms for each of the fan blades so that an installer takes both the motor and pre-attached blades out of a shipping box and allows the folded arms to unfold when the ceiling fan is being mounted. Another embodiment has foldable blades pre-attached to mounting arms that are attached to a motor housing. An installer simply takes both the motor and pre-attached folded blades out of a shipping box and allows the folded blades to unfold when the ceiling fan is being mounted. A still another embodiment combines both the foldable mounting arms and blades together. The shipping box has no separate packaging for blade fasteners and reduces the packaging approximately forty percent over conventional ceiling fan shipping boxes. Blades also do not have to be removed from the motor when the ceiling fan is being taken down and repackaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.