US4371383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radon removal system
Assignee: Individual
•
Filing: 1981-01-12
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Granted: 1983-02-01
•
Expires: 2001-01-12
Abstract
Abstract The radon removal system includes a reactor tank with a first inlet and spray head connected to the water supply for directing and spraying water into the tank. The tank is provided with an outlet at the base of the tank and a second inlet and spray head operatively coupled to the outlet through a pump for recycling and respraying the water in the reactor tank to purge the water of radon gas. A splash plate arrangement supported in the tank increases the spray effect by impingement and deflection of the water, breaking up the water droplets for release of radon gas. A ventilation arrangement with inlet and outlet spaced apart at the top of the tank vents the released radon gas away from the tank. A blower can be provided.
Inventors
- 👤 K. Lennart Rost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:34
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/02; B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0047
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
382 words
A radon gas removal system for installation between a well or other water source and a water use system comprising: at least one reactor tank, first inlet means and first spray head means at the upper portion of said tank for spraying water from a well or other water source into said tank in a fine spray, outlet means comprising first and second outlet pathways at the base portion of said tank, said second outlet pathway comprising means for coupling to a water use system, second inlet means and second spray head means at the upper portion of said tank operatively coupled to said first outlet pathway for recycling and respraying the water in said tank, splash plate means supported in the tank for deflecting and dispersing water sprayed into the tank, pump means coupled at the outlet means, ventilation means including inlet and outlet vents at the top portion of said tank for venting released radon gas away from said tank, first valve means in the first inlet means, liquid level switch means operatively coupled to the tank and first valve means for closing said first valve means when the water level in the reactor tank reaches a specified level, second valve means in the outlet means first pathway, pressure switch means at the outlet means second pathway operatively coupled to the second valve means for closing said second valve means when pressure in the water use system falls below a specified pressure and for opening said second valve means when said specified pressure is restored, said pressure switch means also operatively coupled to the first valve means for opening said valve means when the pressure falls below the specified value, and timer means operatively coupled to said pump means and pressure switch means for activation by the pressure switch means to operate the pump means during a preset timer period whereby the reactor tank is regularly filled and maintained at a desired level, the pressure in a water use system coupled to the outlet means second outlet pathway is regularly restored and maintained at a desired level, and whereby water sprayed into the reactor tank is recycled and resprayed into the reactor tank during the preset timer period for removing and venting radon gas whenever the reactor tank is refilled.
Claim 2
Dependent Claim
382 words
A radon gas removal system for installation between a well or other water source and a water use system comprising: at least one reactor tank, first inlet means and first spray head means at the upper portion of said tank for spraying water from a well or other water source into said tank in a fine spray, outlet means comprising first and second outlet pathways at the base portion of said tank, said second outlet pathway comprising means for coupling to a water use system, second inlet means and second spray head means at the upper portion of said tank operatively coupled to said first outlet pathway for recycling and respraying the water in said tank, splash plate means supported in the tank for deflecting and dispersing water sprayed into the tank, pump means coupled at the outlet means, ventilation means including inlet and outlet vents at the top portion of said tank for venting released radon gas away from said tank, first valve means in the first inlet means, liquid level switch means operatively coupled to the tank and first valve means for closing said first valve means when the water level in the reactor tank reaches a specified level, second valve means in the outlet means first pathway, pressure switch means at the outlet means second pathway operatively coupled to the second valve means for closing said second valve means when pressure in the water use system falls below a specified pressure and for opening said second valve means when said specified pressure is restored, said pressure switch means also operatively coupled to the first valve means for opening said valve means when the pressure falls below the specified value, and timer means operatively coupled to said pump means and pressure switch means for activation by the pressure switch means to operate the pump means during a preset timer period whereby the reactor tank is regularly filled and maintained at a desired level, the pressure in a water use system coupled to the outlet means second outlet pathway is regularly restored and maintained at a desired level, and whereby water sprayed into the reactor tank is recycled and resprayed into the reactor tank during the preset timer period for removing and venting radon gas whenever the reactor tank is refilled.
Claim 3
Dependent Claim
34 words
The system of claim 1 further comprising blower means operatively coupled to the ventilation means, said timer means also coupled to the blower means to operate the blower means during the preset timer period.
Claim 4
Dependent Claim
62 words
The system of claim 1 further comprising relay means operatively coupled between the pressure switch means and first valve means for opening said valve upon activation of the pressure switch means, said relay means also operatively coupled between the liquid level switch means and the first valve means for closing said first valve means upon activation of the liquid level switch means.
Claim 5
Dependent Claim
19 words
The system of claim 1 wherein said means for coupling to a water use system comprises check valve means.
Claim 6
Dependent Claim
13 words
The system of claim 1 wherein said tank further comprises overflow outlet means.
Claim 7
Dependent Claim
32 words
The system of claim 3 further comprising fill indicator light means coupled through said relay means for indicating periods during which the first valve means is open and the tank is filling.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |