Patents Assigned to Isoltherm A.P. Ltd.
  • Process for improving the thermal insulation of heat insulating articles
    Patent number: 6057378
    Abstract: A process for improving the thermal insulation properties of articles such as jackets or slabs made of open cells polymeric foam material is disclosed. A viscous solution is prepared, capable of coating the inner walls of the passages interconnecting the cells. Particles of a size less than the minimum diametrical length of the passages are mixed with the solution. The article is soaked with the mixed solution, squeezed and dried, so that the particles dispersed within the passages partly block the flow of air between adjacent cells.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: May 2, 2000
    Assignee: Isoltherm A.P. Ltd.
    Inventors: Alexander Perstnev, Samuel Perstnev
  • Heat insulating covering and method
    Patent number: 5934338
    Abstract: A method of insulating a heated surface comprising enveloping the surface by a first layer of a heat insulating material having a high thermal resistivity such as Mineral Wool, and enveloping the first layer by a second layer of a material having a lower thermal resistivity, such as Polyurethane.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: August 10, 1999
    Assignee: Isoltherm A.P. Ltd.
    Inventors: Alexander Perstnev, Samuel Perstnev