Patent US3849260A successfully refreshed from Google Patents.
US3849260A
Expired / Lapsed
US
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Water distillation apparatus
Assignee: Oral Corp
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Filing: 1973-06-14
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Granted: 1974-11-19
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Expires: 1993-06-14
Abstract
Abstract A water distillation apparatus having a boiling chamber which receives water at the bottom from a constant level device having an overflow tube. A drain opening in the overflow tube automatically drains the boiling chamber after each use. A condenser, connected to receive water vapor from the boiling chamber, has a spiral tube inside which passes the water that is to be distilled into the inlet of the constant level device, and the water in this tube produces a cooling effect on the water vapor output from the boiling chamber.
Inventors
- 👤 R Ruckstuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:25
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/14; B; B01; B01D; B01D3/00; B01D3/42; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/045; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7297; Y10T137/7303
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
In a water distillation apparatus having a receptacle providing a boiling chamber, heating means for boiling the water in said receptacle; a condenser connected to receive water vapor from said boiling chamber; and a constant level device including an auxiliary receptacle having a fluid connection to the bottom of said boiling chamber and having a water inlet above said connection, a downwardly extending overflow tube having its upper end open inside said auxiliary receptacle to define the static water level inside said boiling chamber, and means providing a discharge opening from the bottom of said overflow tube; the improvement wherein said fluid connection provides a valveless passageway between the bottom of said boiling chamber and said auxiliary receptacle; and further comprising means defining a drain opening in said overflow tube of the constant level device which is lower than the bottom of said boiling chamber and communicates directly and uninterruptedly with the bottom of the boiling chamber through said fluid connection to drain the boiling chamber each time the boiling stops and the flow of water into the boiling chamber is discontinued.
Claim 2
Dependent Claim
182 words
In a water distillation apparatus having a receptacle providing a boiling chamber, heating means for boiling the water in said receptacle; a condenser connected to receive water vapor from said boiling chamber; and a constant level device including an auxiliary receptacle having a fluid connection to the bottom of said boiling chamber and having a water inlet above said connection, a downwardly extending overflow tube having its upper end open inside said auxiliary receptacle to define the static water level inside said boiling chamber, and means providing a discharge opening from the bottom of said overflow tube; the improvement wherein said fluid connection provides a valveless passageway between the bottom of said boiling chamber and said auxiliary receptacle; and further comprising means defining a drain opening in said overflow tube of the constant level device which is lower than the bottom of said boiling chamber and communicates directly and uninterruptedly with the bottom of the boiling chamber through said fluid connection to drain the boiling chamber each time the boiling stops and the flow of water into the boiling chamber is discontinued.
Claim 3
Dependent Claim
32 words
Apparatus according to claim 1 wherein said overflow tube extends downward inside said auxiliary receptacle, and said drain opening is formed in said overflow tube at the bottom of said auxiliary receptacle.
Claim 4
Dependent Claim
81 words
Apparatus according to claim 2, wherein said condenser has an outer housing, and a spiral tube inside said housing with a water inlet at one end and a water outlet at the opposite end which is connected to said water inlet of the constant level device to supply water thereto, said housing having a water vapor inlet connected to said boiling chamber and located outside said spiral tube, and said housing having a distilled water outlet located outside said spiral tube.
Claim 5
Dependent Claim
44 words
Apparatus according to claim 2, wherein said condenser has a spiral tube inside with a water inlet at one end and a water outlet at the opposite end which is connected to said water inlet of the constant level device to supply water thereto.
Claim 6
Dependent Claim
16 words
Apparatus according to claim 1, wherein said overflow tube has an outwardly-flared, upwardly-facing, open upper end.
Claim 7
Dependent Claim
44 words
Apparatus according to claim 1, wherein said condenser has a spiral tube inside with a water inlet at one end and a water outlet at the opposite end which is connected to said water inlet of the constant level device to supply water thereto.
References Cited (Backward Citations)
US1635112A
Cited
US1931838A
Cited
US2254538A
Cited
US2475482A
Cited
US2705218A
Cited
US3330740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |