US3256181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mixing a pumpable liquid and particulate material
Assignee: Dow Chemical Co
•
Filing: 1962-05-09
•
Granted: 1966-06-14
•
Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Warren M Zingg
- 👤 Cleve W Stoskopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:23
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/80; B01F35/82; B01F35/20; B01F35/21; B01F35/2134; B01F23/00; B01F23/50; B01F23/56; Y; Y10; Y10S; Y10S507/00; Y10S507/904; Y10S507/922; Y10S507/924
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
117 words
A METHOD OF MIXING A PUMPABLE LIQUID AND A PARTICULATE MATERIAL COMPRISING INTRODUCING SAID LIQUID TO A MIXING ZONE UNDER A MEASURABLE HYDRAULIC HEAD, SWIRLING SAID LIQUID TO IMPART A ROTARY MOTION TO SAID LIQUID WHEREBY THE LIQUID ACQUIRES AN ANGULAR VELOCITY WITH RESPECT TO THE CENTER OF RATATION OF THE LIQUID, INTRODUCTING PARTICULATE MATERIAL AT LEAST NEAR TO THE CENTER OF RATATION OF SAID LIQUID, ROTATIONALLY SLINGING SAID PARTICULATE MATERIAL IT IMPART A LINEAR VELOCITY SUBSTANTIALLY EQUAL TO THE TANGENTIAL VELOCITY OF THE ROTATING LIQUID AND TO INJECT SAID PARTICULATE MATERIAL INTO SAID ROTATING LIQUID AND FORTHWITH MOVING FROM THE MIXING ZONE THE RESULTING MIXTURE WITH A POWER IMPARTED HYDRAULIC HEAD EXCEEDING SAID MEASURABLE HYDRAULIC HEAD.
Claim 2
Independent Claim
117 words
A METHOD OF MIXING A PUMPABLE LIQUID AND A PARTICULATE MATERIAL COMPRISING INTRODUCING SAID LIQUID TO A MIXING ZONE UNDER A MEASURABLE HYDRAULIC HEAD, SWIRLING SAID LIQUID TO IMPART A ROTARY MOTION TO SAID LIQUID WHEREBY THE LIQUID ACQUIRES AN ANGULAR VELOCITY WITH RESPECT TO THE CENTER OF RATATION OF THE LIQUID, INTRODUCTING PARTICULATE MATERIAL AT LEAST NEAR TO THE CENTER OF RATATION OF SAID LIQUID, ROTATIONALLY SLINGING SAID PARTICULATE MATERIAL IT IMPART A LINEAR VELOCITY SUBSTANTIALLY EQUAL TO THE TANGENTIAL VELOCITY OF THE ROTATING LIQUID AND TO INJECT SAID PARTICULATE MATERIAL INTO SAID ROTATING LIQUID AND FORTHWITH MOVING FROM THE MIXING ZONE THE RESULTING MIXTURE WITH A POWER IMPARTED HYDRAULIC HEAD EXCEEDING SAID MEASURABLE HYDRAULIC HEAD.
Claim 3
Dependent Claim
24 words
A METHOD IN ACCORDANCE WITH CLAIM 1, WHEREIN SAID PARTICULATE MATERIAL IS AN EARTH FORMATION PROPPING AGENT AND SAID LIQUID IS A PETROLEUM OIL.
References Cited (Backward Citations)
US2147053A
Cited
US2626788A
Cited
US2736534A
Cited
US2779735A
Cited
US2924439A
Cited
US2965362A
Cited
US3096284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |