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US2969279A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of decomposing and stabilizing refuse

Assignee: Naturizer Co
•
Filing: 1956-08-01
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Granted: 1961-01-24
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Expires: 1976-08-01
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Abstract

No abstract record available.

Inventors

  • 👤 Norman A Pierson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 12:20
CPC Classifications
C; C05; C05F; C05F17/00; C05F17/90; C05F17/95; C05F17/955; C05F17/20; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 278 words
A METHOD OF DECOMPOSING RO A SOIL NUTRIENT MUNICIPAL REFUSE HAVING A MOISTURE CONTENT OF FROM ABOUT 18 T 25 PERCENT, COMPRISING THE STEPS OF: (A) ADDING WATER TO ADJUST THE MOISTURE CONTENT OF SAID REFUSE TO BETWEEN 50 AND 70 PERCENT, (B) INOCULATING EACH TON OF SAID REFUSE WITH AT LEAST HAVING AN AEROBIC THEMOPHILIC BACTERIAL COUNT OF AT LEAST 1,300,000,000 AND PENETRATED WITH A. FUMIGATUS MOLD TO AN EXTENT THAT SAID FILTER MATERIAL ID BLUE-GREY IN COLOR, (C) GRINDING THE REFUSE TO PARTICLES RANGING IN SIZE BETWEEN 2 INCHES AND 1/8 INCH, WITH NOT MORE THAN ABOUT 15 PERCENT OF PARTICLES BEING BELOW 11/2 INCHES IN SIZE, (D) FEEDING THE GROUND REFUGE TO THE UPPERMOST OF A SERIES OF VERTICALLY SUPERIMPOSED DIGESTION CELLS, SAID REFUSE BEING SUPPORTED IN SAID UPPERMOST CELL AT A DEPTH OF NOT MORE THAN ABOUT 28 INCHES, (E) EXPOSING EACJ SIDE OF EACH OF SAID CELLS TO NATURAL AIR CIRCULATION FOR INCLUDING ACEOBIC BACTERIAL ACTION AND MOLD GROWTH IN SAID REFUSE, (F) SICCSEEIVELY MOVING SAID REFUSE DOWNWARDLY TO THE NEXT LOWER CELL OF SAID SERIES EACH 25 HOURS WHILE TURNING AND BREAKING-UO THE PARTIALLY COMPOSTED REFUSE EACH TIME THE REFUSE IS MOVED DOWNWARDLY, (G) RETAINING SAID REFUSE IN SAID SERIES OF CELL UNTIL THE TEMPERATURE OF SAID REFUSE EXCEEDS THE TEMPERATURE OF PASTEURIZATION, THEN (H) REGRINDING THE PARTIALLY DECOMPOSED REFUSE TO A SMALLER PARTICLE SIZE THAN THE PARTICLE SIZE THEREOF AT THE END OF THE INITIAL GRINDING STEP TO EXPOSE UNTREATED PORTIONS OF SAID REFUSE, THEN (I) ALLOWING FUTHER BACTERAL ACTION IN SAID REFUSE UNTIL THE TEMPERATURE AGAIN EXCEEDS THE TEMPERATURE OF PASTEURIZATION AND SAID REFUSE IS DECOMPOSED TO A SOIL NUTRIENT.
Claim 2
Independent Claim 278 words
A METHOD OF DECOMPOSING RO A SOIL NUTRIENT MUNICIPAL REFUSE HAVING A MOISTURE CONTENT OF FROM ABOUT 18 T 25 PERCENT, COMPRISING THE STEPS OF: (A) ADDING WATER TO ADJUST THE MOISTURE CONTENT OF SAID REFUSE TO BETWEEN 50 AND 70 PERCENT, (B) INOCULATING EACH TON OF SAID REFUSE WITH AT LEAST HAVING AN AEROBIC THEMOPHILIC BACTERIAL COUNT OF AT LEAST 1,300,000,000 AND PENETRATED WITH A. FUMIGATUS MOLD TO AN EXTENT THAT SAID FILTER MATERIAL ID BLUE-GREY IN COLOR, (C) GRINDING THE REFUSE TO PARTICLES RANGING IN SIZE BETWEEN 2 INCHES AND 1/8 INCH, WITH NOT MORE THAN ABOUT 15 PERCENT OF PARTICLES BEING BELOW 11/2 INCHES IN SIZE, (D) FEEDING THE GROUND REFUGE TO THE UPPERMOST OF A SERIES OF VERTICALLY SUPERIMPOSED DIGESTION CELLS, SAID REFUSE BEING SUPPORTED IN SAID UPPERMOST CELL AT A DEPTH OF NOT MORE THAN ABOUT 28 INCHES, (E) EXPOSING EACJ SIDE OF EACH OF SAID CELLS TO NATURAL AIR CIRCULATION FOR INCLUDING ACEOBIC BACTERIAL ACTION AND MOLD GROWTH IN SAID REFUSE, (F) SICCSEEIVELY MOVING SAID REFUSE DOWNWARDLY TO THE NEXT LOWER CELL OF SAID SERIES EACH 25 HOURS WHILE TURNING AND BREAKING-UO THE PARTIALLY COMPOSTED REFUSE EACH TIME THE REFUSE IS MOVED DOWNWARDLY, (G) RETAINING SAID REFUSE IN SAID SERIES OF CELL UNTIL THE TEMPERATURE OF SAID REFUSE EXCEEDS THE TEMPERATURE OF PASTEURIZATION, THEN (H) REGRINDING THE PARTIALLY DECOMPOSED REFUSE TO A SMALLER PARTICLE SIZE THAN THE PARTICLE SIZE THEREOF AT THE END OF THE INITIAL GRINDING STEP TO EXPOSE UNTREATED PORTIONS OF SAID REFUSE, THEN (I) ALLOWING FUTHER BACTERAL ACTION IN SAID REFUSE UNTIL THE TEMPERATURE AGAIN EXCEEDS THE TEMPERATURE OF PASTEURIZATION AND SAID REFUSE IS DECOMPOSED TO A SOIL NUTRIENT.

References Cited (Backward Citations)

US2734803A Cited
US2043265A Cited
US2209613A Cited
US2285834A Cited
GB521894A Cited
US2798800A Cited
US2820703A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-01-24 1964-07-25 1965-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-01-24 1968-07-25 1969-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-01-24 1972-07-25 1973-01-24 $7700.00 Window Closed / Lapsed

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