Patent · US Expired

Heat-insulating panel

US4091591A · kind A · utility

1Cited by
9References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 3, 1976
Grant dateMay 30, 1978
Priority date
Expiry dateJun 3, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E30/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

The heat-insulating panel designed to be applied against a wall to be protected consists of two parallel sheet-metal sealing elements of small thickness which are welded together at their periphery and form an enclosed space in which is mounted a stack of thin wire-fabric elements and perforated plates or grids in alternate relation. The free spaces between the wire-fabric elements and the perforated plates communicate with each other and are filled with an inert gas. A leak-tight welded joint is formed between the non-perforated peripheral portion of the plates and the sheet-metal sealing elements.

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