Gear box of air fan
US5123299A · kind A · utility
0Cited by
1References
4Claims
0Family size
Inventor
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2186
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gear box for storing gears of a swinging controller of an air fan in the gear box includes an upper cover fixed on the gear box and integrally formed by plastic molding process to form two screw holes in situ in the upper cover for saving a manual drilling and tapping operation so that an outer housing may be secured on the gear box by a screw inserted into one of the two screw holes formed in the upper cover for encasing the gear box and a fan motor inside the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.