US3578005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treatment apparatus
Assignee: POUR L IND ET L AGRICULTURE SO
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Filing: 1968-03-01
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Granted: 1971-05-11
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Expires: 1988-03-01
Abstract
Abstract A water treatment apparatus having a fluid mixing device for injecting an aqueous solution of a treating fluid into the water to be treated. Storage vessels for the treating fluid communicate with a dilution vessel for dilution of the treating fluid. Dilution water is transmitted to the device through valved lines communicating in parallel with the storage vessel and with the dilution vessel. A control is provided to alternately direct dilution water through the storage vessel to the dilution vessel or directly to the dilution vessel as determined by the chemical makeup of the water to be treated.
Inventors
- 👤 Roland Jurion
- 👤 Andre Leblanche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:48
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; C02F2103/00; C02F2103/42; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/2496; Y10T137/2499; Y10T137/2509; Y10T137/2931; Y10T137/3112
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
13 words
A device in accordance with claim 1 wherein said valves are electrically actuated.
Claim 2
Dependent Claim
76 words
A device in accordance with claim 2 wherein control means are provided to actuate the valve of said first means and the vales of said second means to opposite positions simultaneously so that the valves of said second means are closed to block flow therethrough when the valve of said first means is open and the valve of said first means being closed to block flow therethrough when the valves of said second means are opened.
Claim 3
Dependent Claim
14 words
A device in accordance with claim 3 wherein said control means is manually operated.
Claim 4
Dependent Claim
22 words
A device in accordance with claim 3 further including a timer means to operate said control means according to a predetermined schedule.
Claim 5
Dependent Claim
87 words
A device in accordance with claim 3 wherein said relatively dense fluid comprises liquid bromine and wherein the aqueous bromine mixture from said device is communicative with a treated liquid cycle, a sensing means disposed in communication with said treated liquid cycle for continuous monitoring of the bromine content thereof, said sensing means being connected to said control means for operation thereof to actuate said valves for regulation of the amount of bromine transmitted to said treated liquid cycle to maintain a predetermined constant bromine level therein.
Claim 6
Dependent Claim
67 words
A device in accordance with claim 6 in which said sensing means comprises a fluid sample takeoff communicative with said treated liquid cycle, means to inject potassium iodine and a buffer solution into the sample fluid, a platinum electrode disposed in the resultant sample fluid, and a silver wire electrode disposed in a saturated jellified sodium chloride solution to serve as a reference electrode for said cell.
Claim 7
Dependent Claim
16 words
A device in accordance with claim 1 wherein said second means comprises a single reducing valve.
Claim 8
Dependent Claim
16 words
A device in accordance with claim 8 wherein said reducing valve is a self-operated pressure regulator.
Claim 9
Dependent Claim
72 words
A process for introducing bromine into swimming pools, which process comprises the steps of: a. passing inlet water into at least one bromine storage vessel; b. withdrawing from a bromine storage vessel brominated water and passing the latter to a bromine dilution vessel; c. passing inlet water into said bromine dilution vessel at different levels thereof to further dilute said brominated water; and d. withdrawing from said dilution vessel diluted brominated water.
Claim 10
Dependent Claim
26 words
A process as defined by claim 10, wherein diluted brominated water having a concentration of not more than 100 mg/1. is withdrawn from said dilution vessel.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |