Patent US2742974A successfully refreshed from Google Patents.
US2742974A
Expired / Lapsed
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Method and apparatus for cleaning air or gas laden with oil mists
Assignee: Trion Inc
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Filing: 1953-03-23
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Granted: 1956-04-24
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Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 George F Landgraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
B; B03; B03C; B03C3/00; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02A50/2351
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
APPARATUS FOR CLEANING AIR LADEN WITH A MIST OF OIL AND PARTIALLY OXIDIZED OIL COMPRISING AN ELECTROSTATIC PRECIPITATOR, A CONDUIT LEADING THE AIR TO THE PRECIPITATOR, MEANS IN THE PRECIPITATOR FOR COLLECTING THE MIST, MEANS FOR GATHERING THE COLLECTED MATERIALS, A RESERVOIR FOR OIL, A PIPE CONNECTING SAID GATHERING MEANS AND THE RESERVOIR, MEANS FOR CREATING A MIST OF OIL OF THE SAME TYPE AS THE UNOXIDIZED OIL IN THE AIR BEING CLEANED IN SAID CONDUIT IN ADVANCE OF THE PRECIPITATOR AND MEANS FOR SUPPLYING OIL FROM SAID RESERVOIR TO SAID MIST CREATING MEANS.
Claim 2
Dependent Claim
94 words
APPARATUS FOR CLEANING AIR LADEN WITH A MIST OF OIL AND PARTIALLY OXIDIZED OIL COMPRISING AN ELECTROSTATIC PRECIPITATOR, A CONDUIT LEADING THE AIR TO THE PRECIPITATOR, MEANS IN THE PRECIPITATOR FOR COLLECTING THE MIST, MEANS FOR GATHERING THE COLLECTED MATERIALS, A RESERVOIR FOR OIL, A PIPE CONNECTING SAID GATHERING MEANS AND THE RESERVOIR, MEANS FOR CREATING A MIST OF OIL OF THE SAME TYPE AS THE UNOXIDIZED OIL IN THE AIR BEING CLEANED IN SAID CONDUIT IN ADVANCE OF THE PRECIPITATOR AND MEANS FOR SUPPLYING OIL FROM SAID RESERVOIR TO SAID MIST CREATING MEANS.
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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) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |