Cover for an attic fan vent
US6050893A · kind A · utility
8Cited by
12References
8Claims
0Family size
Inventor
Key dates
| Filing date | Oct 21, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Oct 21, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F13/082
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An insulating cover for overlaying a ceiling vent beneath an attic fan includes a substantially rectangular frame member having top and bottom edges. Horizontally disposed between the top and bottom edges are a plurality of panels including an intermediate insulating layer for minimizing air flow through the vent. A plurality of spring biased retractable fingers are mounted to the vent border which may be selectively extended to retain the cover therewithin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.