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Filter bag and method for the production thereof

  • US 20070175190A1
  • Filed: 10/15/2004
  • Published: 08/02/2007
  • Est. Priority Date: 10/17/2003
  • Status: Active Grant
First Claim
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1. A filter bag for a vacuum cleaner, comprising:

  • a substantially tubular bag made from a bag material having at least one non-woven layer, the bag having a closed free end area and an at least partially closed area opposite the closed free end area; and

    a retaining plate, wherein edges of the bag are at least partially interconnected by a weld seam to form the at least partially closed area, and wherein a bottom of the bag is formed by at least partially interconnecting plies of the bag material at least in areas in which plies of the bag material lie one above the other.

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