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Flexible heating element for heating seats, in particular motor vehicle seats, couches, berths or the like

  • US 4,044,221 A
  • Filed: 05/15/1975
  • Issued: 08/23/1977
  • Est. Priority Date: 07/19/1974
  • Status: Expired due to Term
First Claim
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1. A flexible electrical heating element comprising:

  • a planar carrier sheet, said carrier sheet being formed of an air permeable material;

    an electrical heater, said heater being in the form of a conductive wire which defines a seam on said carrier sheet;

    a perforated foam member, said foam member having a first side facing a first side of said carrier sheet; and

    means mechanically interconnecting said carrier sheet and foam member, said interconnecting means including closing seams.

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