US3348683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating particles in liquid suspension in a hydrocyclone for separatingarticles in liquid suspension
Assignee: Individual
•
Filing: 1961-09-08
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Granted: 1967-10-24
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Expires: 1981-09-08
Abstract
No abstract record available.
Inventors
- 👤 Wikdahl Nils Anders Lennart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:59
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/26; B01D21/267; B04; B04C; B04C5/00; B04C5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A METHOD OF SEPARATING IN A HYDROCYCLONE INCLUDING A SEPARATION CHAMBER, DISCRETE PARTICLES CONTAINED IN A LIQUID SUSPENSION INTO A HEAVY FRACTION AND A LIGHT FRACTION, THE STEPS OF PROVIDING SEVERAL INLET DUCTS CONNECTED WITH SAID SEPARATION CHAMBER AND DISTRIBUTED IN SYMMETRIC RELATIONSHIP ABOUT A LENGTHWISE AXIS OF THE SEPARATION CHAMBER SUBSTANTIALLY TANGENTIALLY ORIENTED IN REFERENCE TO SAID AXIS, FEEDING THE SUSPENSION TO ONE END OF SAID DUCTS AT AN INLET PRESSURE BETWEEN 0.5 AND 2.5 ATMOSPHERES, AND DISCHARGING THE SUSPENSION FROM THE DUCTS AT THE OTHER END THEROF INTO THE SEPARATION CHAMBER IN THE FORM OF SUBSTANTIALLY TANGENTIALLY DIRECTED PARTIAL FLOWS HAVING AN ENTRY SPEED OF 1 TO 8 METERS PER SECOND INTO THE CHAMBER, WHEREBY A MINOR PORTION OF THE INLET PRESSURE ENERGY OF THE SUSPENSION IS CONVERTED INTO KINETIC ENERGY OF THE SUSPENSION IS FLOWING THROUGH SAID DUCTS.
Claim 2
Dependent Claim
142 words
IN A METHOD OF SEPARATING IN A HYDROCYCLONE INCLUDING A SEPARATION CHAMBER, DISCRETE PARTICLES CONTAINED IN A LIQUID SUSPENSION INTO A HEAVY FRACTION AND A LIGHT FRACTION, THE STEPS OF PROVIDING SEVERAL INLET DUCTS CONNECTED WITH SAID SEPARATION CHAMBER AND DISTRIBUTED IN SYMMETRIC RELATIONSHIP ABOUT A LENGTHWISE AXIS OF THE SEPARATION CHAMBER SUBSTANTIALLY TANGENTIALLY ORIENTED IN REFERENCE TO SAID AXIS, FEEDING THE SUSPENSION TO ONE END OF SAID DUCTS AT AN INLET PRESSURE BETWEEN 0.5 AND 2.5 ATMOSPHERES, AND DISCHARGING THE SUSPENSION FROM THE DUCTS AT THE OTHER END THEROF INTO THE SEPARATION CHAMBER IN THE FORM OF SUBSTANTIALLY TANGENTIALLY DIRECTED PARTIAL FLOWS HAVING AN ENTRY SPEED OF 1 TO 8 METERS PER SECOND INTO THE CHAMBER, WHEREBY A MINOR PORTION OF THE INLET PRESSURE ENERGY OF THE SUSPENSION IS CONVERTED INTO KINETIC ENERGY OF THE SUSPENSION IS FLOWING THROUGH SAID DUCTS.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |