US3582411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerated explosive slurry containing a foam promoting and viscosity increasing agent and method of making same
Assignee: Ireco Inc
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Filing: 1968-02-21
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Granted: 1971-06-01
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Expires: 1988-02-21
Abstract
Abstract A METHOD AND APPARATUS IS DISCLOSED FOR PREPARING A SLURRY OF VARIABLE AND CONTROLLABLE DENSITY FROM A LIQUID SOLUTION OF OXIDIZER, SUCH AS AMMONIUM NITRATE SENSITIZING PARTICULATE MATERIAL. THE LIQUID COMPONENT, OR PART THEREOF, IS AERATED PRIOR TO ADDING THE PARTICULATE SOLIDS TO VARY DENSITY AND EXPLOSIVE CHARACTERISTICS OF THE FINISHED SLURRY. PART OF THE LIQUID MAY BE DIVERTED THROUGH A FOAMING OR AERATING DEVICE TO INCORPORATE FINE GAS BUBBLES AND THEN COMBINED WITH OTHER LIQUID AND WITH SOLID INGREDIENTS TO MAKE FINISHED SLURRY. THE RELATIVE PROPORTIONS OF THE VARIOUS COMPONENTS CAN BE CHANGED OR PROGRAMMED PERIODICALLY.
Inventors
- 👤 Stephen M Brockbank
- 👤 Robert B Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:09
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/08; F42D1/10; C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |