Patent · US Expired

Window insulating apparatus

US5794404A · kind A · utility

24Cited by
3References
17Claims
0Family size

Inventor

Key dates

Filing dateFeb 19, 1997
Grant dateAug 18, 1998
Priority date—
Expiry dateFeb 19, 2017

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE06B3/28
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A window insulating attachment, including a translucent panel and ridges which form a chamber between the glass of the window and the panel. Air is withdrawn from the chamber through an air passage which is thereafter sealed. The partial vacuum in the chamber secures the insulating apparatus onto the window. The window and the translucent panel are spaced apart by the height of the ridges, forming an insulating layer of air, thereby reducing the transfer of energy through the window.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.