US3596893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury purifying plant
Assignee: Individual
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Filing: 1969-06-11
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Granted: 1971-08-03
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Expires: 1989-06-11
Abstract
Abstract A mercury purifying plant ensuring chemical or electrolytic purification of mercury followed by vacuum distillation, comprising a number of consecutively connected purifiers, an accumulating vessel, a vacuum evaporator, and a condenser. The vacuum evaporator of the plant is equipped with means for maintaining a constant mercury level in it, which ensures a high efficiency of the purification process and increases the output of the plant.
Inventors
- 👤 Vladimir Mikhailovic Foliforov
- 👤 Boris Nikolaevich Ukraintsev
- 👤 Viktor Georgievich Sirotenko
- 👤 Aivar Eduardovich Tinte
- 👤 Boris Lvovich Birger
- 👤 Aivar Yanovich Vilnitis
- 👤 Nikita Mikhailovic Nadezhnikov
- 👤 Mark Ilich Grinshtein
- 👤 Sergei Lavrentievich Shashurin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:17
CPC Classifications
C; C22; C22B; C22B43/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
78 words
A mercury purifying plant according to claim 1, wherein said means for maintaining a constant level of mercury in said vacuum evaporator means includes an intermediate vessel installed between said accumulating vessel and said vacuum evaporator means so that said vacuum evaporator means is supplied from said intermediate vessel owing to a difference of pressures in said vacuum evaporator means and said intermediate vessel, said intermediate vessel including means for maintaining a constant level of mercury in it.
Claim 2
Dependent Claim
71 words
A mercury purifying plant according to claim 2, wherein said intermediate vessel is installed in such a manner that the level of mercury in it is higher than that in said accumulating vessel and said means for maintaining a constant level of mercury in said intermediate vessel includes a supply pipe communicating with said accumulating vessel and a discharge pipe including an inlet hole to be maintained in said intermediate vessel.
Claim 3
Dependent Claim
46 words
A mercury purifying plant according to claim 2, wherein said means for maintaining a constant level of mercury in said intermediate vessel includes a level gauge installed in said intermediate vessel and controlling the supply of mercury passing from said accumulating vessel to said intermediate vessel.
References Cited (Backward Citations)
US1964593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |