Patent US4381240A successfully refreshed from Google Patents.
US4381240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool water conditioning system
Assignee: RUSSELL THOMAS V
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Filing: 1981-05-05
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Granted: 1983-04-26
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Expires: 2001-05-05
Abstract
Abstract A swimming pool water conditioning system which incorporates a pump-fed, pool water filtration system; a hydrochloric acid-consuming electrolytic chlorine gas generator; and a manifold system to draw the chlorine gas into the flow through the filtration system, to serve in combination as a device to both safely chlorinate and pH-adjust the water in the swimming pool in a controlled manner, so that bacteria growth and the acid level in the pool can be controlled with a minimum of effort and expense.
Inventors
- 👤 Thomas V. Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674; C02F2103/00; C02F2103/42; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2526
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
In a swimming pool, a water conditioning system, comprising: means for circulating a flow of pool water into a first chamber; a second chamber adjoining said first chamber and having a vented upper- and enclosed lower- volume portions in communication; hydrochloric acid filling said lower volume portion; electrode means having an anode and a cathode in said lower volume portion for conducting a current through said hydrochloric acid so that chlorine gas is freed thereby; manifold means having a venturi in communication with said upper portion and with said means for circulating for drawing said chlorine gas into said first chamber and mixing said chlorine gas with said pool water; means for terminating the operation of said electrode means; and control means for sustaining operation of said means for circulating after terminating operation of said electrode means so that said chlorine gas is purged from said upper volume portion when said system is turned off.
Claim 2
Dependent Claim
155 words
In a swimming pool, a water conditioning system, comprising: means for circulating a flow of pool water into a first chamber; a second chamber adjoining said first chamber and having a vented upper- and enclosed lower- volume portions in communication; hydrochloric acid filling said lower volume portion; electrode means having an anode and a cathode in said lower volume portion for conducting a current through said hydrochloric acid so that chlorine gas is freed thereby; manifold means having a venturi in communication with said upper portion and with said means for circulating for drawing said chlorine gas into said first chamber and mixing said chlorine gas with said pool water; means for terminating the operation of said electrode means; and control means for sustaining operation of said means for circulating after terminating operation of said electrode means so that said chlorine gas is purged from said upper volume portion when said system is turned off.
Claim 3
Independent Claim
167 words
A method of safely conditioning water in a swimming pool comprising the steps of: circulating a flow of pool water into a first chamber; providing a second chamber adjoining said first chamber, said second chamber having vented upper and enclosed lower volume portions in communication; filling said lower volume portion with hydrochloric acid; conducting a current through said hydrochloric acid by the use of electrode means having an anode and a cathode located in said lower volume portion so that chlorine gas is freed thereby; providing manifold means having a venturi in communication with said upper portion and with said pool water circulated into said first chamber for drawing said chlorine gas into said first chamber and mixing said chlorine gas with said pool water; terminating the operation of said electrode means; and providing control means for sustaining the operation of circulating said flow of pool water after terminating the operation of said electrode means so that said chlorine gas is purged from said upper volume portion.
Claim 4
Independent Claim
167 words
A method of safely conditioning water in a swimming pool comprising the steps of: circulating a flow of pool water into a first chamber; providing a second chamber adjoining said first chamber, said second chamber having vented upper and enclosed lower volume portions in communication; filling said lower volume portion with hydrochloric acid; conducting a current through said hydrochloric acid by the use of electrode means having an anode and a cathode located in said lower volume portion so that chlorine gas is freed thereby; providing manifold means having a venturi in communication with said upper portion and with said pool water circulated into said first chamber for drawing said chlorine gas into said first chamber and mixing said chlorine gas with said pool water; terminating the operation of said electrode means; and providing control means for sustaining the operation of circulating said flow of pool water after terminating the operation of said electrode means so that said chlorine gas is purged from said upper volume portion.
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) | 1986-04-25 | 1986-10-25 | 1987-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-25 | 1990-10-25 | 1991-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-25 | 1994-10-25 | 1995-04-26 | $7700.00 | Window Closed / Lapsed |