Insulating preform
OwnerFilippo Amadioinventor
Life of this patent
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Abstract
An insulating preform made of a mass of glass fiber resembling wool obtained by extreme bulking of glass fiber and by a support for the glass wool, the support including a net being of the same material of the glass wool and defined by a non bulked glass strand. The glass wool and the net are held together so as to make geometrical shapes without any glue and/or impregnating substance.
Claims11
A method for producing an insulating preform including a mass of mass of glass threads resembling wool, obtained by extreme bulking of glass fiber in form of increasing the volume of the glass fiber as much as possible, and a support for holding the glass wool, the method including the steps of:
- inflating a strand of glass fiber by means of the air jet generated by a nozzle, thus forming a mass of glass fibers;
- providing a support for the inflated glass fiber from non bulked strand of glass fibers, the support having a conformation corresponding to its use.
Dependencies are inferred from the claim text.