US3841483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purification system
Assignee: Individual
•
Filing: 1973-07-23
•
Granted: 1974-10-15
•
Expires: 1993-07-23
Abstract
Abstract A high capacity, flow-through water purification system is described. The system includes one or more chamber units which may be used individually, or arranged in parallel, depending on the volume of water to be purified. The chamber houses first, second and third serially arranged modules. Each module comprises oppositely charged, spaced plates for activating colloidal impurities dispersed in water for subsequent coagulation and removal thereof. Sensors are provided at the chamber inlet and at the chamber outlet for measuring, respectively, conductivity and resistivity. A closed loop proportionate control system is provided for monitoring conductivity and resistivity and for selectively opening and closing inlet and outlet valves to retain a predetermined ratio therebetween for a given power input to the ionizing plates. The power system for the chamber is capable of applying typically up to about 200 volts and from about 2 to about 6 amps direct current to the plates spaced about one inch apart from an input power supply of 110 or 220 volts alternating current. A typical chamber may have overall dimensions of four feet in height and twelve inches in diameter with a four or six inch orifice although larger or smaller units may be constructed. This chamber unit has been found to be capable of purifying a flow rate of at least 1,000 gallons per minute polluted water.
Inventors
- 👤 C Overton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:06
CPC Classifications
G; G05; G05D; G05D21/00; G05D21/02; B; B01; B01D; B01D21/00; B01D21/0009; B01D21/0039; B01D21/0045; B01D21/30; B01D21/305; B01D21/34; C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/463; C02F1/52; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4612; C02F2201/46145; C02F2209/00; C02F2209/05
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
281 words
A flow-through water purification apparatus for separating colloidal particles suspended therein comprising: a body having an inlet at one end and an outlet at an opposite end, said body defining at least one passage therethrough between the inlet and the outlet so that a flow of water entering the inlet will pass through said body exiting therefrom at the outlet; a first set of mutually spaced plates disposed in the passage through said body adjacent said inlet; a second set of mutually spaced plates disposed in the passage to said body intermediate said first set and the outlet; a third set of mutually spaced plates disposed in the passage through said body adjacent said outlet and downstream said second set of plates; means carried by said apparatus for directing a flow of water to be purified through the inlet, into the passage and sequentially through the plates in said first, second and third sets, and subsequently through the outlet; means coupled to each of said plates for applying a preselected electrical potential thereacross so that when said flow is directed through said plates the colloidal particles therein will be subjected to a predetermined ionizing potential; first valve means at the inlet for controlling the flow admitted thereto; second valve means at the outlet for controlling the flow exiting therethrough; first sensor means at the inlet for producing a signal proportional to the conductivity of the flow passing therethrough; second sensor means at the outlet for producing a signal proportional to the resistivity of the flow therethrough; means coupled to both of said valve and sensor means for selectively opening and closing said valve means responsive to predetermined signals from said sensors.
Claim 2
Dependent Claim
281 words
A flow-through water purification apparatus for separating colloidal particles suspended therein comprising: a body having an inlet at one end and an outlet at an opposite end, said body defining at least one passage therethrough between the inlet and the outlet so that a flow of water entering the inlet will pass through said body exiting therefrom at the outlet; a first set of mutually spaced plates disposed in the passage through said body adjacent said inlet; a second set of mutually spaced plates disposed in the passage to said body intermediate said first set and the outlet; a third set of mutually spaced plates disposed in the passage through said body adjacent said outlet and downstream said second set of plates; means carried by said apparatus for directing a flow of water to be purified through the inlet, into the passage and sequentially through the plates in said first, second and third sets, and subsequently through the outlet; means coupled to each of said plates for applying a preselected electrical potential thereacross so that when said flow is directed through said plates the colloidal particles therein will be subjected to a predetermined ionizing potential; first valve means at the inlet for controlling the flow admitted thereto; second valve means at the outlet for controlling the flow exiting therethrough; first sensor means at the inlet for producing a signal proportional to the conductivity of the flow passing therethrough; second sensor means at the outlet for producing a signal proportional to the resistivity of the flow therethrough; means coupled to both of said valve and sensor means for selectively opening and closing said valve means responsive to predetermined signals from said sensors.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1 further comprising recording and display means coupled to said sensor means and said means for applying an electrical potential at said plates for recording and displaying the conductivity and resistivity of said flow and the electrical characteristics of the potential applied to said plates.
Claim 4
Dependent Claim
34 words
The apparatus of claim 2 wherein each of said sets of plates comprises a plurality of mutually spaced metal plate members disposed in said passage at an angle to the direction of flow therethrough.
Claim 5
Dependent Claim
40 words
The apparatus of claim 3 wherein said first set of plates further comprises a plurality of equidistantly spaced, oppositely charged elongated plates, the longitudinal axis of each of said plates disposed parallel to the direction of flow through said passage.
Claim 6
Dependent Claim
53 words
The apparatus of claim 4 wherein said second set of plates comprises a pair of flat plates, each of said plates being disposed in said passage perpendicular to the direction of flow therethrough, each of said plates having a plurality of holes therethrough extending parallel to the direction of flow through the passage.
Claim 7
Dependent Claim
66 words
The apparatus of claim 5 wherein each of said plates comprises a first and a second segment having an insulator therebetween, each of said segments in each plate carrying an opposite charge, and each segment in one plate carrying a charge opposite the charge carried by the corresponding segment in said adjacent plate, at least one segment of each plate having a plurality of holes therethrough.
Claim 8
Dependent Claim
53 words
The apparatus of claim 5 wherein said third set of plates comprises a pair of flat plates, each of said plates being disposed in said passage perpendicular to the direction of flow therethrough, each of said plates having a plurality of holes therethrough extending parallel to the direction of flow through the passage.
Claim 9
Dependent Claim
66 words
The apparatus of claim 7 wherein each of said plates comprises a first and a second segment having an insulator therebetween, each of said segments in each plate carrying an opposite charge and each segment in one plate carrying a charge opposite the charge carried by the corresponding segment in said adjacent plate, at least one segment of each plate having a plurAlity of holes therethrough.
Claim 10
Dependent Claim
17 words
The apparatus of claim 1 wherein said body defines a passage having a generally circular cross section.
Claim 11
Dependent Claim
30 words
The apparatus of claim 5 wherein said body defines a passage having a generally circular cross section and said second set of plates comprises a pair of flat circular plates.
Claim 12
Dependent Claim
17 words
The apparatus of claim 10 wherein each of said segments in each of said plates is semicircular.
Claim 13
Dependent Claim
28 words
The apparatus of claim 7 wherein said body defines a passage having a generally circular cross section and each of said plates in said third set is circular.
Claim 14
Dependent Claim
17 words
The apparatus of claim 12 wherein each of said segments in each of said plates is semicircular.
Claim 15
Dependent Claim
21 words
The apparatus of claim 1 wherein a direct current potential of up to about 200 volts is applied across said plates.
Claim 16
Dependent Claim
14 words
The apparatus of claim 14 wherein said plates are spaced apparoximately 1 inch apart.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |