US3235371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomerated mineral products and method of making same
Assignee: BOARD OF CONTROL OF MICHIGAN COLLEGE OF MINING AND TECHNOLOGY
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Filing: 1962-09-10
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Granted: 1966-02-15
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Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Melden E Volin
- 👤 Goksel Mehmet Adnan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:31
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/242; C22B1/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
THE METHOD OF MAKING A MINEAL AGGLOMERATE WHICH COMPRISES THE STEPS OF PROVIDING A FINELY PARTICULATED MOIST MINERAL HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN ABOUT 4 MESH AND A MOISTURE CONTENT OF FROM ABOUT 3% TO ABOUT 14%, ADMIXING THEREWITH A FINELY PARTICULATED BONDING AGENT SELECTED FROM THE GROUP CONSISTING OF CALCIUM HYDROXIDE,CALCIUM OXIDE, MAGNESIUM HYDROXIDE, MAGNESIUM OXIDE, AND MIXTURES THEREOF, IN AN AMOUNT GREATER THAN ABOUT 1% UP TO ABOUT 30% UNTIL A RELATIVELY UNIFORM MIXTURE IS OBTAINED, ADDING TO SAID MIXTURE AN ACCELERATOR AGENT SELECTED FROM THE GROUP CONSISTING OF THE OXIDES, HYDROXIDES, CARBONATES AND BICARBONATES OF THE ALKALI METALS IN AN AMOUNT OF ABOUT 25% TO ABOUT 1% CALCULATED AS THE OXIDE FORM, FORMING THE BLENDED SAID MIXTURE INTO COMPACT DISCRETE MASSES, AND THEREAFTER CONTACTING AND HEATING SAID MASSES UNDER PRESSURE BY STEAM TO A TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 700*F. AND MAINTAINING CONTACT FOR A PERIOD OF TIME SUFFICIENT TO FORM HARD AND INTEGRALY BONDED MASSES.
Claim 2
Independent Claim
164 words
THE METHOD OF MAKING A MINEAL AGGLOMERATE WHICH COMPRISES THE STEPS OF PROVIDING A FINELY PARTICULATED MOIST MINERAL HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN ABOUT 4 MESH AND A MOISTURE CONTENT OF FROM ABOUT 3% TO ABOUT 14%, ADMIXING THEREWITH A FINELY PARTICULATED BONDING AGENT SELECTED FROM THE GROUP CONSISTING OF CALCIUM HYDROXIDE,CALCIUM OXIDE, MAGNESIUM HYDROXIDE, MAGNESIUM OXIDE, AND MIXTURES THEREOF, IN AN AMOUNT GREATER THAN ABOUT 1% UP TO ABOUT 30% UNTIL A RELATIVELY UNIFORM MIXTURE IS OBTAINED, ADDING TO SAID MIXTURE AN ACCELERATOR AGENT SELECTED FROM THE GROUP CONSISTING OF THE OXIDES, HYDROXIDES, CARBONATES AND BICARBONATES OF THE ALKALI METALS IN AN AMOUNT OF ABOUT 25% TO ABOUT 1% CALCULATED AS THE OXIDE FORM, FORMING THE BLENDED SAID MIXTURE INTO COMPACT DISCRETE MASSES, AND THEREAFTER CONTACTING AND HEATING SAID MASSES UNDER PRESSURE BY STEAM TO A TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 700*F. AND MAINTAINING CONTACT FOR A PERIOD OF TIME SUFFICIENT TO FORM HARD AND INTEGRALY BONDED MASSES.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |