Fan, especially a ceiling fan with a balanced single blade
US8235660B2 · kind B2 · utility
7Cited by
72References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 6, 2010 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/662
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Described is a fan with a blade suitable for use as a ceiling fan. The blade may be regarded as a single blade, although shaft is not attached to blade at one end thereof; rather, shaft is attached to blade at a point between first end and second end. Blade is balanced by counterweights located in blade. In one embodiment, blade is connected to shaft by means that permit angular movement, such as a teeter hinge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.