Thermally insulated window system
US4057936A · kind A · utility
20Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1977 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Mar 11, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S49/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A thermally insulated window system for use in windows and doors which provides a thermally insulated frame and means for completely insulating the area of the frame. Novel panel sections are used to form the frame, as well as vents for a portion of the frame, and shutters which completely cover the area of a double panel window section. The novel panels contain a thermal break and a structurally sound construction filled and monolithically sealed with closed-cell foamed polymeric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.