Patent US2922719A successfully refreshed from Google Patents.
US2922719A
Expired / Lapsed
US
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Structural clay products and method of making the same
Assignee: Zonolite Co
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Filing: 1957-04-08
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Granted: 1960-01-26
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Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Gilbert C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:05
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/04; C04B33/28; C04B33/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD OF MAKING A STRUCTURAL CLAY PRODUCT, WHICH COMPRISES THE STEPS OF DISPERSING CLAY PARTICLES IN WATER TO FORM AN AQUEOUS SLIP, ADDING TO THE SLIP A DRY WATERABSORPTIVE AGGREGATE IN A SUFFICIENT QUANTITY TO DEWATER THE SLIP IN A PERIOD OF TIME GENERALLY BETWEEN ABOUT 10 AND 30 MINUTED, RAPIDLY MIXING THE AGGREGATE INTO THE SLIP IMMEDIATELY AFTER ADDING SAID AGGREGATE THERETO AND PROVIDING A MIXTURE OF POURING CONSISTENCY WHEREIN THE AGGREGATE IS ESSENTIALLY UNIFORMLY DISPERSED THROUGHOUT, RAPIDLY TRANSFERRING THE MIXTURE TO A SHAPING MOLD AND BEFORE THE AGGREGATE HAS REMOVED SUBSTANTIAL WATER FROM THE SLIP, PERMITTING THE SHAPED MIXTURE TO STAND FOR A TIME SUFFICIENT TO PERMIT SAID AGGREGATE TO ABSORB THE FREE WATER FROM SAID SLIP AND THEREBY FORM A SELF-SUSTAINING MASS, AND THEREAFTER FIRING SAID MASS AT A TEMPERATURE SUFFICIENT TO VITRIFY THE CLAY IN SAID MASS.
Claim 2
Independent Claim
142 words
A METHOD OF MAKING A STRUCTURAL CLAY PRODUCT, WHICH COMPRISES THE STEPS OF DISPERSING CLAY PARTICLES IN WATER TO FORM AN AQUEOUS SLIP, ADDING TO THE SLIP A DRY WATERABSORPTIVE AGGREGATE IN A SUFFICIENT QUANTITY TO DEWATER THE SLIP IN A PERIOD OF TIME GENERALLY BETWEEN ABOUT 10 AND 30 MINUTED, RAPIDLY MIXING THE AGGREGATE INTO THE SLIP IMMEDIATELY AFTER ADDING SAID AGGREGATE THERETO AND PROVIDING A MIXTURE OF POURING CONSISTENCY WHEREIN THE AGGREGATE IS ESSENTIALLY UNIFORMLY DISPERSED THROUGHOUT, RAPIDLY TRANSFERRING THE MIXTURE TO A SHAPING MOLD AND BEFORE THE AGGREGATE HAS REMOVED SUBSTANTIAL WATER FROM THE SLIP, PERMITTING THE SHAPED MIXTURE TO STAND FOR A TIME SUFFICIENT TO PERMIT SAID AGGREGATE TO ABSORB THE FREE WATER FROM SAID SLIP AND THEREBY FORM A SELF-SUSTAINING MASS, AND THEREAFTER FIRING SAID MASS AT A TEMPERATURE SUFFICIENT TO VITRIFY THE CLAY IN SAID MASS.
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) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |