Louvered basement vent
US5293920A · kind A · utility
33Cited by
10References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2013/1473
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A basement vent includes a frame and a screened opening. A plurality of louvers cover said frame. The louvers each include tabs which slide within slots in the frame. The tabs each include a detent section that permit the louvers to be held in an open position for use in the summer months and permit the louvers to be closed during the winter months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.