US4097375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocyclone separator
Assignee: Luhring Chicago Industries
•
Filing: 1977-01-31
•
Granted: 1978-06-27
•
Expires: 1997-01-31
Abstract
Abstract The following specification describes a hydrocyclone having a porous media forming a wall portion of the hydrocyclone for separating dissolved salt and other impurities from a water stream under centrifugal force. The hydrocyclone has an overflow port adjacent the cyclone base to provide an exit for the water stream containing a low proportion of salt and an underflow port adjacent the cone apex to provide an exit for a water stream containing a higher proportion of salt.
Inventors
- 👤 Arvid A. Molitor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:37
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/02; B04C5/04; B01; B01D; B01D17/00; B01D17/02; B01D17/0217; B01D17/08; B01D17/085; B01D61/00; B01D61/02; B01D61/025; B01D2313/00; B01D2313/20; B01D2313/205
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
A method for separating a solvent from a solute, the improvement comprising introducing solute-containing solvent in tangential manner into a conical chamber adjacent the base thereof, to impart a spiral path of flow to said solute-containing solvent, and passing said spirally moving solute-containing solvent over porous media defining at least a portion of said conical chamber, and passing solvent outwardly through said porous media for separation from solute said porous media being of the type to permit the flow of solvent therethrough while preventing the passage of said solute.
Claim 2
Independent Claim
89 words
A method for separating a solvent from a solute, the improvement comprising introducing solute-containing solvent in tangential manner into a conical chamber adjacent the base thereof, to impart a spiral path of flow to said solute-containing solvent, and passing said spirally moving solute-containing solvent over porous media defining at least a portion of said conical chamber, and passing solvent outwardly through said porous media for separation from solute said porous media being of the type to permit the flow of solvent therethrough while preventing the passage of said solute.
Claim 3
Dependent Claim
66 words
The method claimed in claim 1 in which a rotational momentum is imparted to said solute-containing solvent at said base and said solute-containing solvent is thereafter divided into a stream containing a relatively low amount of solute having an axial flow direction toward said base and a stream containing a relatively high amount of solute having an axial flow direction toward the apex of said chamber.
Claim 4
Dependent Claim
26 words
The method claimed in claim 2 in which the low solute stream has a direction of rotation opposite that of the fluid introduced into said chamber.
Claim 5
Dependent Claim
38 words
The method claimed in claim 3 in which said low solute stream has a substantially constant angular velocity in one radial plane through said stream and said angular velocity diminishes in the axial direction extending toward said base.
Claim 6
Dependent Claim
45 words
The method claimed in claim 4 in which an overflow port is provided adjacent the base of said cone for enabling said low solute stream to flow from said chamber, and the diameter of said port is approximately one half the diameter of said base.
Claim 7
Dependent Claim
29 words
The method claimed in claim 5 in which the velocity of said low solute stream through said overflow port is in excess of the inlet velocity of said solvent.
Claim 8
Dependent Claim
20 words
The method claimed in claim 6 in which said conical chamber has a cone angle of less than 11 degrees.
Claim 9
Dependent Claim
16 words
The method of claim 1 in which said solvent is water and said solute comprises salt.
Claim 10
Dependent Claim
14 words
The method of claim 8 in which said porous media comprises a fibrous material.
Claim 11
Dependent Claim
13 words
The method of claim 9 in which said porous media comprises glass fibers.
References Cited (Backward Citations)
US938702A
Cited
US2377524A
Cited
US2418061A
Cited
US3391787A
Cited
US3724674A
Cited
US3904788A
Cited
US4051300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |