Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1992 | Invention patented by Robert Kilburn on November 15th, 1992. Abstract: A ceiling fan includes a drive motor having a first web rotatably mounted relative to a mounting boss securing the drive motor. A second web is mounted in a parallel spaced relationship below the first web in a coaxially aligned relationship relative to the drive motor and mounting boss. A plurality of blade loops are directed from the first web to the second web, wherein each blade loop includes an upper blade and lower blade of a predetermined pitch to effect displacement of air within a predetermined environment. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
