Patent ID: 8444827

Claim:
A structured fabric for use in a papermaking machine for forming a web of fibrous material, the structured fabric comprising: a plurality of warp yarns; and a plurality of weft yarns, said plurality of warp and weft yarns being interwoven with one another in a repeating weave pattern, forming a web-facing side of the structured fabric, and forming a plurality of pockets each of which includes a plurality of margins and a bottom and is open on said web-facing side, said repeating weave pattern including: said plurality of warp yarns including a plurality of warp knuckles each formed by floating over adjacent ones of said plurality of weft yarns on said web-facing side, said plurality of weft yarns including a first group of weft yarns and a second group of weft yarns, said first group of weft yarns, but not said second group of weft yarns, forming a plurality of weft knuckles each formed by floating over adjacent ones of said plurality of warp yarns on said web-facing side, said plurality of warp and weft knuckles being configured for impressing the web, said second group of weft yarns, but not said first group of weft yarns, forming at least partially a respective said bottom of each of said plurality of pockets, said plurality of pockets including a first type of pocket and a second type of pocket, said plurality of margins of said first type of pocket being formed only by said plurality of warp knuckles, said plurality of margins of said second type of pocket being formed by both said plurality of warp knuckles and said plurality of weft knuckles.