Portable doorway bug deflector
US6705940B1 · kind B1 · utility
1Cited by
13References
5Claims
0Family size
Inventor
Key dates
| Filing date | Oct 15, 2002 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Oct 15, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F9/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Insects, debris and the like are prevented from moving into a building via an open door by a fan unit that is mounted on the side of the doorway to extend for the entire length of the door and to direct air outwardly with respect to the building at an oblique angle with respect to a plane containing the doorway. The fan is activated when the door is opened and de-activated when the door is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.