Insulated fan for electric appliance
US4147470A · kind A · utility
9Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/263
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan and motor assembly for an electric appliance, wherein the fan is comprised of a plastic material and has a mounting hole of a diameter greater than the shaft diameter of the motor. Insulating washers closely fitted in annular recesses at the end of the mounting hole have inner diameters substantially the same as that of the shaft for centering the fan on the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.