US3303738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for mixing and pumping of slurry explosive
Assignee: Intermountain Research and Engineering Co Inc
•
Filing: 1965-06-02
•
Granted: 1967-02-14
•
Expires: 1985-06-02
Abstract
No abstract record available.
Inventors
- 👤 Robert B Clay
- 👤 Melvin A Cook
- 👤 Douglas H Pack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:04
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/08; F42D1/10; B; B01; B01F; B01F23/00; B01F23/50; B01F23/56; B01F33/00; B01F33/50; B01F33/502; B01F35/00; B01F35/20; B01F35/22; B01F35/221; B01F35/2211; C; C06; C06B; C06B21/00; B01F2101/00; B01F2101/34; B01F33/80; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
THE METHOD OF PREPARING AND PLACING AN EXPLOSIVE GEL OR SLURRY IN A BLASTING SITE, WHICH COMPRISES, IN COMBINATION, THE STEPS OF FEEDING TOGETHER SIMULTANEOUSLY MATERIALS WHICH WHEN COMBINED FORM A GEL OR SLURRY EXPLOSIVE COMPOSITION AND WHICH INCLUDE A LIQUID SOLUTION CONTAINING OXIDIZING SALT AND PARTICULATE MATTER INCLUDING PARTICLES WHICH ARE INSOLUBLE IN SAID LIQUID AND SUBJECT TO OXIDATION BY SAID SALT AND ALSO NORMALLY SUBJECT TO GRAVITY SEPARATION FROM SAID LIQUID, INCLUDING IN SAID MIXTURE A SUFFICIENT QUANTITY OF A DELAYED ACTION THICKENING AGENT TO PREVENT SUCH SEPARATION WHEN THE AGENT BECOMES EFFECTIVE, CONTINUOUSLY MIXING THE LIQUID AND PARTICULATE MATTER TOGETHER AND FORCIBLY PUMPING THE RESULTING SLURRY MIXTURE TO THE SITE WHILE CONTINUING THE MIXING, AND TIMING THE PLACEMENT IN THE SITE SO THAT SUBSTANTIAL THICKENING TAKES PLACE BY THE TIME SAID PLACEMENT IS ACCOMPLISHED, THEREBY TO SUBSTANTIALLY INHIBIT SAID GRAVITY SEPARATION OF PARTICULATE MATTER IN THE SITE.
Claim 2
Independent Claim
150 words
THE METHOD OF PREPARING AND PLACING AN EXPLOSIVE GEL OR SLURRY IN A BLASTING SITE, WHICH COMPRISES, IN COMBINATION, THE STEPS OF FEEDING TOGETHER SIMULTANEOUSLY MATERIALS WHICH WHEN COMBINED FORM A GEL OR SLURRY EXPLOSIVE COMPOSITION AND WHICH INCLUDE A LIQUID SOLUTION CONTAINING OXIDIZING SALT AND PARTICULATE MATTER INCLUDING PARTICLES WHICH ARE INSOLUBLE IN SAID LIQUID AND SUBJECT TO OXIDATION BY SAID SALT AND ALSO NORMALLY SUBJECT TO GRAVITY SEPARATION FROM SAID LIQUID, INCLUDING IN SAID MIXTURE A SUFFICIENT QUANTITY OF A DELAYED ACTION THICKENING AGENT TO PREVENT SUCH SEPARATION WHEN THE AGENT BECOMES EFFECTIVE, CONTINUOUSLY MIXING THE LIQUID AND PARTICULATE MATTER TOGETHER AND FORCIBLY PUMPING THE RESULTING SLURRY MIXTURE TO THE SITE WHILE CONTINUING THE MIXING, AND TIMING THE PLACEMENT IN THE SITE SO THAT SUBSTANTIAL THICKENING TAKES PLACE BY THE TIME SAID PLACEMENT IS ACCOMPLISHED, THEREBY TO SUBSTANTIALLY INHIBIT SAID GRAVITY SEPARATION OF PARTICULATE MATTER IN THE SITE.
References Cited (Backward Citations)
US2975045A
Cited
US2596843A
Cited
US2903969A
Cited
US2867172A
Cited
US2955534A
Cited
US3068791A
Cited
US3040615A
Cited
US3064572A
Cited
US3005373A
Cited
US3046888A
Cited
US3063373A
Cited
US3139029A
Cited
US3104584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |