Patent US3920423A successfully refreshed from Google Patents.
US3920423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric steam scrubber to control particulates
Assignee: Individual
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Filing: 1974-01-14
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Granted: 1975-11-18
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Expires: 1994-01-14
Abstract
Abstract The present invention relates employs polymeric materials having a high electrostatic potential, and low heat deformation to exploit electrostatic characteristics of particulates passing in air stream. The present invention is applicable with particular advantage to steam scrubbers.
Inventors
- 👤 Samuel Scott Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:30
CPC Classifications
B; B01; B01D; B01D50/00; B01D47/00; B01D47/06; B03; B03C; B03C3/00; B03C3/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
IN A STREAM SCRUBBER INCLUDING UPSTANDING CYLINDRICAL WALLS, A FLAT, HORIZONTALLY DISPOSED ENCLOSURE WALL FASTENED TO THE UPPERMOST TERMINAL END OF SAID CYLINDRICAL WALLS, AND DOWNWARDLY PROJECTING CONE-SHAPED WALLS FASTENED TO THE LOWERMOST TERMINAL END OF SAID CYLINDRICAL WALLS, SAID STREAM SCRUBBER PROVIDED WITH A STEAM CONDUIT DEPENDINGLY MOUNTED FROM SAID TANK ENCLOSURE WALL, SAID STEAM CONDUIT HAVING A MULTIPLICITY OF SUITABLY DISPOSED EXITWAYS CLOSED AT THE BOTTOM AND CONNECTED TO STEAM SOURCE AND SAID STEAM SCRUBBER TANK HAVING AN INLET CONDUIT DISPOSED AT A TANGENT TO SAID STEAM SCRUBBER AND AN EXITWAY DUCT DISPOSED DISTALLY FROM THE UPPERMOST TERMINAL END OF SAID STEAM SCRUBBER CYLINDRICAL WALLS, THE IMPROVEMENT OF AN ELECTROSTATIC TANK CONSTRUCTION FOR STEAM SCRUBBERS WHEREIN SAID WALLS OF SAID TANK ARE FABRICATED OF POLYMERIC MATERIAL OF HIGH ELECTROSTATIC POTENTIAL AND LOW HEAT DEFORMATION.
Claim 2
Dependent Claim
136 words
IN A STREAM SCRUBBER INCLUDING UPSTANDING CYLINDRICAL WALLS, A FLAT, HORIZONTALLY DISPOSED ENCLOSURE WALL FASTENED TO THE UPPERMOST TERMINAL END OF SAID CYLINDRICAL WALLS, AND DOWNWARDLY PROJECTING CONE-SHAPED WALLS FASTENED TO THE LOWERMOST TERMINAL END OF SAID CYLINDRICAL WALLS, SAID STREAM SCRUBBER PROVIDED WITH A STEAM CONDUIT DEPENDINGLY MOUNTED FROM SAID TANK ENCLOSURE WALL, SAID STEAM CONDUIT HAVING A MULTIPLICITY OF SUITABLY DISPOSED EXITWAYS CLOSED AT THE BOTTOM AND CONNECTED TO STEAM SOURCE AND SAID STEAM SCRUBBER TANK HAVING AN INLET CONDUIT DISPOSED AT A TANGENT TO SAID STEAM SCRUBBER AND AN EXITWAY DUCT DISPOSED DISTALLY FROM THE UPPERMOST TERMINAL END OF SAID STEAM SCRUBBER CYLINDRICAL WALLS, THE IMPROVEMENT OF AN ELECTROSTATIC TANK CONSTRUCTION FOR STEAM SCRUBBERS WHEREIN SAID WALLS OF SAID TANK ARE FABRICATED OF POLYMERIC MATERIAL OF HIGH ELECTROSTATIC POTENTIAL AND LOW HEAT DEFORMATION.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said tank is fabricated with polymeric cylindrical walls.
Claim 4
Dependent Claim
17 words
The apparatus of claim 1 wherein said polymeric material is applied to a rigid, non-polymeric tank-like enclosure.
Claim 5
Dependent Claim
13 words
The apparatus of claim 3 wherein said material coating said walls is polytetraflourethylene.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |