Heat-insulating building and/or light element
OwnerEmil Bachliinventor
Life of this patent
Estimating the term…
Abstract
A building and/or light element comprises at least two parallel wall elements (1) between which support elements (2) for the formation of an evacuated interspace (3) are placed and the wall elements are connected by a flexible seal on the edges. The distance of wall elements (1) is less than 0.5 mm and support elements (2) are formed as disks lying flat between wall elements (1).
Claims22
Heat insulating building and/or light element comprising at least two substantially parallel wall elements having flat support elements therebetween and a tight bond in the edge area of said wall elements to define an evacuable interspace between said wall elements, characterized in that said interspace (3) is evacuated to a vacuum between 1 and 10.sup.-2 mbar and the distance between wall elements (1) is smaller that the free path length of air molecules as determined for that vacuum whereby the heat conductivity of the air molecules between the wall elements is substantially cancelled, said tight bond comprising a metallic foil seal enclosing said interspace and absorbing differences in expansion of said wall elements resulting from differences in the temperatures of said wall elements.
Dependencies are inferred from the claim text.