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US2556154A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making coke briquettes

Assignee: Individual
•
Filing: 1947-06-16
•
Granted: 1951-06-05
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Expires: 1967-06-16
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Abstract

No abstract record available.

Inventors

  • 👤 Fernando C Kern

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:01
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/08; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/10; C10L5/14

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 180 words
A METHOD OF CONVERTING HIGHLY BITUMINOUS COAL INTO COKE BRIQUETTES COMPRISING CRUSHING THE COAL TO PASS A 30 TO 40 MESH SCREEN, TO PROVIDE RELATIVELY COARSE PARTICLES, PREPARING ADDITIONAL COAL TO PASS AN APPROXMATELY 200 MESH SCREEN, TO PROVIDE PULVERIZED PARTICLES, ADDING LIQUID NAPHTHA TO THE PULVERIZED COAL IN THE PROPORTION OF ABOUT 20 GALLONS OF NAPHTHA TO 350 KILOGRAMS OF PULVERIZED COAL, ADDING PULVERIZED PITCH OF ABOUT THE SAME FINENESS TO THE PULVERIZED COAL AND NAPHTHA, MIXING AND AGITATING THE PULVERIZED COAL, NAPHTHA AND PITCH IN THE ABSENCE OF WATER TO FORM A PASTE, ADDING TO THE PASTE TWO TO THREE TIMES AS MUCH BY WEIGHT OF THE COARSE COAL PARTICLES, WITH RESPECT TO THE AMOUNT OF PULVERIZED COAL IN THE PASTE, INTERMIXING THE COARSE PARTICLES AND PASTE BY A COMBINED ROLLING, CRUSHING, GRINDING AND KNEADING ACTION AT ROOM TEMPERATURE, ADDING ENOUGH WATER TO MAINTAIN FLUIDITY DURING THE INTERMIXING, CONTINUING THE ROLLING, CRUSHING, GRINDING AND KNEADING FOR ABOUT 15 MINUTES, WHEREBY THE MIXTURE BECOMES RUBBERY AND SLAB-LIKE, PRESSURE-MOLDING SUCH RUBBERY AND SLAB-LIKE MATERIAL INTO BRIQUETTES, AND CARBONIZING SAID BRIQUETTES.
Claim 2
Independent Claim 180 words
A METHOD OF CONVERTING HIGHLY BITUMINOUS COAL INTO COKE BRIQUETTES COMPRISING CRUSHING THE COAL TO PASS A 30 TO 40 MESH SCREEN, TO PROVIDE RELATIVELY COARSE PARTICLES, PREPARING ADDITIONAL COAL TO PASS AN APPROXMATELY 200 MESH SCREEN, TO PROVIDE PULVERIZED PARTICLES, ADDING LIQUID NAPHTHA TO THE PULVERIZED COAL IN THE PROPORTION OF ABOUT 20 GALLONS OF NAPHTHA TO 350 KILOGRAMS OF PULVERIZED COAL, ADDING PULVERIZED PITCH OF ABOUT THE SAME FINENESS TO THE PULVERIZED COAL AND NAPHTHA, MIXING AND AGITATING THE PULVERIZED COAL, NAPHTHA AND PITCH IN THE ABSENCE OF WATER TO FORM A PASTE, ADDING TO THE PASTE TWO TO THREE TIMES AS MUCH BY WEIGHT OF THE COARSE COAL PARTICLES, WITH RESPECT TO THE AMOUNT OF PULVERIZED COAL IN THE PASTE, INTERMIXING THE COARSE PARTICLES AND PASTE BY A COMBINED ROLLING, CRUSHING, GRINDING AND KNEADING ACTION AT ROOM TEMPERATURE, ADDING ENOUGH WATER TO MAINTAIN FLUIDITY DURING THE INTERMIXING, CONTINUING THE ROLLING, CRUSHING, GRINDING AND KNEADING FOR ABOUT 15 MINUTES, WHEREBY THE MIXTURE BECOMES RUBBERY AND SLAB-LIKE, PRESSURE-MOLDING SUCH RUBBERY AND SLAB-LIKE MATERIAL INTO BRIQUETTES, AND CARBONIZING SAID BRIQUETTES.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-06-04 1954-12-04 1955-06-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-06-04 1958-12-04 1959-06-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-06-04 1962-12-04 1963-06-05 $7700.00 Window Closed / Lapsed

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