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US3708262A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for scouring raw loose wool

Assignee: Kanegafuchi Spinning Co Ltd
•
Filing: 1970-10-15
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Granted: 1973-01-02
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Expires: 1990-10-15
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Abstract

Abstract A METHOD FOR WASHING AND SCOURING LOOSE WOOL WHICH HAS BEEN SUBJECTED TO A PRELIMINARY WASHIG CARRIED OUT IN A FLOATING DOWN TYPE WASHING BATH TO SEPARATE AT LEAST A PART OF OIL AND DIRT FROM THE LOOSE, WOOL, WHICH METHOD COMPRISES CONVEYING LOOSE WOOL IN A LAYER PLACED BETWEEN TWO NET CONVEYORS MOUNTED IN PARALLEL AND MOVABLE ALONG A GIVEN PATH THROUGH A LIQUOR SCOURING BATH, SAID PATH BEING PREFERABLY AT A LEVEL OF ABOUT 40-60 MM. BENEATH THE LIQUID SURFACE, SUPPLYING SAID BATH WITH SCOURING LIQUID UNDER SUBSTANTIALLY NO PRESSURE FROM A SCOURING LIQUID FEEDING DEVICE WHICH IS POSITIONED ABOVE SAID PATH AND DRAWING THE SCOURING LIQUID BY AN UPTAKE SUCTION MEANS POSITIONED BELOW THE SAID PATH, WHEREBY STEADY AND GENTLE DIFFUSION FLOW PASSES DOWNWARDLY ENTIRELY THROUGH THE FIBER LAYER. AN APPARATUS SUITABLE FOR PERFORMING THE ABOVE MENTIONED METHOD HAS BEEN ALSO PROPOSED.

Inventors

  • 👤 M Watanabe
  • 👤 H Mizoguchi
  • 👤 M Hoshikawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 15:32
CPC Classifications
D; D01; D01B; D01B3/00; D01B3/04; D01B3/08

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-02 1976-07-03 1977-01-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-02 1980-07-03 1981-01-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-02 1984-07-03 1985-01-02 $7700.00 Window Closed / Lapsed

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