Method and apparatus for isolating a motor of a box fan
US8192179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Jan 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan having a housing and a motor connected to the housing via a nonconductive support member. In one form, the nonconductive support member takes the form of a grill. The motor may be connected to the grill such that separate brackets to support the motor are not needed and the motor is electrically isolated from the fan housing. Insulating members may be used to connect the motor to the nonconductive support member. Additional fasteners may be used to connect the motor to the support member. A generally rectangular box fan assembly includes a metal fan housing having a peripheral shroud portion, a nonconductive grill connected to the shroud portion, and a motor assembly connected to the nonconductive grill such that the motor assembly is electrically isolated from the metal fan housing. A method for insulating a box fan from a motor including providing a motor, a metal box fan housing and a nonconductive support member connected to the fan housing and electrically isolating the fan housing from the motor by attaching the motor to the nonconductive support member with a fastening member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.