Patent US3134579A successfully refreshed from Google Patents.
US3134579A
Expired / Lapsed
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Method of treating flue dust
Assignee: Individual
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Filing: 1962-08-22
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Granted: 1964-05-26
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Sr Charles H Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:49
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN THE METHOD OF CONVERTING FLUE DUST AND THE LIKE TO A SEMI-SOLID STATE BY THE USE OF A PUG MILL HAVING SPACED PADDLES WHICH COMPRISES THE STEPS OF; (A) CHARGING A PRE-DETERMINED QUANTITY OF FLUE DUST INTO THE PUG MILL, (B) SPRAYING A FOAM CONSISTING OF STEAM AND BITUMEN INTO THE FLUE DUST WHILE THE DUST IS SUBJECTED TO A MIXING ACTION TO COVER EACH PARTICLE OF DUST, (C) CONTINUING THE MIXING ACTION OF THE MATERIAL IN THE PRESENCE OF HEAT UNTIL THE MIXTURE HAS BECOME A FLOWABLE MASS, (D) LOWERING THE TEMPERATURE OF THE MASS AND CONTINUING TO MIX THE SAME TO FORM A SEMI-SOLID SUBSTANCE IN THE SHAPE OF COMPACT MASSES, AND, (E) AND CONTROLLING THE SIZE OF THE COMPACT MASSES BY REGULATING THE SPEED OF THE MIXING ACTION.
Claim 2
Dependent Claim
132 words
IN THE METHOD OF CONVERTING FLUE DUST AND THE LIKE TO A SEMI-SOLID STATE BY THE USE OF A PUG MILL HAVING SPACED PADDLES WHICH COMPRISES THE STEPS OF; (A) CHARGING A PRE-DETERMINED QUANTITY OF FLUE DUST INTO THE PUG MILL, (B) SPRAYING A FOAM CONSISTING OF STEAM AND BITUMEN INTO THE FLUE DUST WHILE THE DUST IS SUBJECTED TO A MIXING ACTION TO COVER EACH PARTICLE OF DUST, (C) CONTINUING THE MIXING ACTION OF THE MATERIAL IN THE PRESENCE OF HEAT UNTIL THE MIXTURE HAS BECOME A FLOWABLE MASS, (D) LOWERING THE TEMPERATURE OF THE MASS AND CONTINUING TO MIX THE SAME TO FORM A SEMI-SOLID SUBSTANCE IN THE SHAPE OF COMPACT MASSES, AND, (E) AND CONTROLLING THE SIZE OF THE COMPACT MASSES BY REGULATING THE SPEED OF THE MIXING ACTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |