US2758445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cooling and dewatering sand and aggregate
Assignee: CONVEYOR Co Inc
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Filing: 1951-11-30
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Granted: 1956-08-14
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 Walter E Saxe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:21
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/08; B28; B28C; B28C7/00; B28C7/0007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD FOR PREPARING A COOLED AGGREGATE WHICH INCLUDES THE STEPS OF: WITHDRAWING WET AGGREGATE FROM A WASHING STEP; CONTINUOUSLY DEWATERING SUCH AGGREGATE; CONTINUOUSLY PASSING THE WASHED AGGREGATE FROM THE WASHING STEP TO THE DEWATERING STEP; CONTINUOUSLY DISCHARGING DEWATERED AGGREGATE; AND CONTINUOUSLY SUPPLYING TO THE WASHED AGGREGATE A COOLING AGENT IN QUANTITY TO LOWER THE TEMPERATURE OF SAID AGGREGATE TO A REQUIRED VALUE, WHILE COMMINGLING SAID AGENT WITH SAID AGGREGATE AND MAINTAINING CONTACT THEREBETWEEN FOR A TIME TO EFFECT THE REQUIRED COOLING, SAID COOLING AGENT BEING A COLD SOLIDIFIED NORMALLY FLUID MATERIAL, AND BEING SUPPLIED BETWEEN THE WASHING AND DEWATERING STEPS.
Claim 2
Independent Claim
101 words
A METHOD FOR PREPARING A COOLED AGGREGATE WHICH INCLUDES THE STEPS OF: WITHDRAWING WET AGGREGATE FROM A WASHING STEP; CONTINUOUSLY DEWATERING SUCH AGGREGATE; CONTINUOUSLY PASSING THE WASHED AGGREGATE FROM THE WASHING STEP TO THE DEWATERING STEP; CONTINUOUSLY DISCHARGING DEWATERED AGGREGATE; AND CONTINUOUSLY SUPPLYING TO THE WASHED AGGREGATE A COOLING AGENT IN QUANTITY TO LOWER THE TEMPERATURE OF SAID AGGREGATE TO A REQUIRED VALUE, WHILE COMMINGLING SAID AGENT WITH SAID AGGREGATE AND MAINTAINING CONTACT THEREBETWEEN FOR A TIME TO EFFECT THE REQUIRED COOLING, SAID COOLING AGENT BEING A COLD SOLIDIFIED NORMALLY FLUID MATERIAL, AND BEING SUPPLIED BETWEEN THE WASHING AND DEWATERING STEPS.
References Cited (Backward Citations)
US1139484A
Cited
US2237635A
Cited
US2309036A
Cited
US2491194A
Cited
US2648206A
Cited
US2585739A
Cited
US2595631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |