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US3857260A Expired / Lapsed US ⏱️ 0.0 years remaining

Sinker arrangement for warp knitting and raschel machines

Assignee: Individual
•
Filing: 1972-06-05
•
Granted: 1974-12-31
•
Expires: 1992-06-05
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Abstract

Abstract A warp knitting or Raschel machine for the production of fabrics having incorporated weft of filler threads, with a sinker comb movably mounted above the needles and performing a substantially circular movement in timed relationship with the movements of the thread guides and the needles, respectively, the sinkers thus serving to hold the filler threads in place during the rising movement of the needles.

Inventors

  • 👤 S Liebrandt
  • 👤 G Liebrandt
  • 👤 R Wunner
  • 👤 K Liebrandt
  • 👤 A Zwingenberger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:05
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/12; D04B27/00; D04B27/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 152 words
A warp knitting or Raschel machine comprising a row of vertical needles, a plurality of vertical needles, a plurality of thread guides for supplying warp thread to said needles, means for feeding weft or filler thread to said needles for producing knitted fabric, said weft or filler thread extending over the entire width of the machine, and means for reciprocating said needles mainly vertically and said thread guides mainly horizontally during a knitting cycle, a sinker arrangement comprising a plurality of sinkers movably mounted above said needles and capable of performing a substantially circular or orbital movement, and means for moving said sinkers horizontally in timed relationship with the movement of said thread guides, and vertically in timed relationship with the movement of said needles, the sinkers thus performing said substantially circular or orbital movement serving to hold said weft or filler thread in place during the rising movement of the needles.
Claim 2
Dependent Claim 152 words
A warp knitting or Raschel machine comprising a row of vertical needles, a plurality of vertical needles, a plurality of thread guides for supplying warp thread to said needles, means for feeding weft or filler thread to said needles for producing knitted fabric, said weft or filler thread extending over the entire width of the machine, and means for reciprocating said needles mainly vertically and said thread guides mainly horizontally during a knitting cycle, a sinker arrangement comprising a plurality of sinkers movably mounted above said needles and capable of performing a substantially circular or orbital movement, and means for moving said sinkers horizontally in timed relationship with the movement of said thread guides, and vertically in timed relationship with the movement of said needles, the sinkers thus performing said substantially circular or orbital movement serving to hold said weft or filler thread in place during the rising movement of the needles.

References Cited (Backward Citations)

GB223342A Cited
US2943468A Cited
US3405543A Cited
US3707853A Cited
US3587254A Cited
US3570269A Cited
US3718010A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-30 1978-07-01 1978-12-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-30 1982-07-01 1982-12-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-30 1986-07-01 1986-12-31 $7700.00 Window Closed / Lapsed

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