Window insulating device
US4255908A · kind A · utility
Inventor
Key dates
| Filing date | May 4, 1979 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | May 4, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B3/285
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A heat insulation panel is adapted to be mounted in a window frame and includes a pair of spaced substantially flat face sheets connected by a plurality of connector strips extending therebetween. The peripheral edge of the panel is sealed by a gusset strip in air tight relation. The gusset strip has a firmer hand than the face sheets and is approximately 25% heavier in gauge so that upon inflation the edge of the panel remains substantially flat in order to form a broad substantially air tight seal with the periphery of a window frame in which the panel is inserted. The gusset edge also can cooperate with the edge of an adjacent panel to form a substantially air tight seal therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.