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US3705016A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid-solids contacting chamber

Assignee: Universal Oil Products Co
•
Filing: 1970-11-20
•
Granted: 1972-12-05
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Expires: 1990-11-20
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Abstract

Abstract AN APPARATUS FOR CONTACTING A FLUID IN A FLUID-SOLID CONTACTING ZONE SUCH AS AN ADSORPTION ZONE OR A REACTION ZONE. THE APPARATUS IS COMPRISED OF AN ELONGATED CHAMBER HAVING A HORIZONTALLY POSITIONED IMPERFORATE PLATE WITH A CENTRALLY DISPOSED OPENING THEREIN FOR HOLDING AND RETAINING AN UPPER BED OF PARTICULATED CONTACT SOLIDS. A FLUID INTRODUCTION MEANS SUCH AS A PERFORATE CONDUIT EXTENDS FROM CENTRALLY DISPOSED OPENING INTO THE UPPER BED OF CONTACT SOLIDS. SPACED BELOW THE OPENING IS A SECOND HORIZONTALLY POSITIONED IMPERFORATE PLATE AND VERTICAL BAFFLE MEANS INTERPOSED BETWEEN THE FIRST HORIZONTALLY POSITIONED IMPERFORATE PLATE AND THE SECOND IMPERFORATE PLATE. A HORIZONTALLY POSITIONED PERFORATED PLATE MEANS IS SPACED BELOW THE IMPERFORATE PLATE MEANS.

Inventors

  • 👤 Orville I Ludwigsen
  • 👤 Daniel Dudych

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 13:15
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0423; B01D15/00; B01D53/0446; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0492; C; C10; C10G; C10G49/00; C10G49/002; B01D2255/00; B01D2256/00; B01D2256/24; B01D2256/245; B01D2259/00; B01D2259/40; B01D2259/41

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) 1975-12-05 1976-06-05 1976-12-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-12-05 1980-06-05 1980-12-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-12-05 1984-06-05 1984-12-05 $7700.00 Window Closed / Lapsed

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