Thermally insulated windows and doors
US4151682A · kind A · utility
63Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1976 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Dec 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S49/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Complete thermal insulation of metal rails and stiles in vertically or horizontally sliding or rolling windows or doors is provided by including in the frame thereof centered rigid plastic shapes which extend between panels of the windows or doors. All rails and stiles of each panel are thereby exposed only to either interior or exterior ambient temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.