Patents Assigned to Isover Saint-Gobain c/o Saint-Gobain Rescherche
  • Process for manufacturing shells of mineral fibers
    Patent number: 4830808
    Abstract: In the manufacture of insulating shells formed by a felt of mineral fibers wound around a mandrel, main pressing elements intervene as soon as the winding begins and remain in contact with the surface of the shell during the entire winding phase. Auxiliary pressing elements intervent only when the shell, during shaping, has reached a given outside diameter of, for example, 200 mm. The process applies particularly to the insulation of conduits of small and average outside diameters.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: May 16, 1989
    Assignee: Isover Saint-Gobain c/o Saint-Gobain Rescherche
    Inventors: Bernard Bichot, Bernard Louis