US3274753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic precipitators
Assignee: Individual
•
Filing: 1964-05-28
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Granted: 1966-09-27
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Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Brandt Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN AN ELECTROSTATIC PRECIPITATOR COMPRISING AN ASSEMBLY OF A PLURALITY OF VERTICAL CHAMBERS DISPOSED ADJACENT TO EACH OTHER IN A VERTICAL AXIS, DUSTLADEN GAS BEING CAUSED TO FLOW FROM A DUCT THROUGH THE SAID CHAMBERS, EACH SAID CHAMBER BEING PROVIDED WITH AND ELECTRODE SYSTEM TO WHICH HIGH-TENSION ELECTRIC CURRENT IS SUPPLIED, MEANS FOR PERIODICALLY SHUTTING OFF A SAID CHAMBER FROM THE FLOW OF SAID DUST-LADEN GAS, THE FLOW OF CURRENT TO THE ELECTRODE SYSTEM IN THE SAID CHAMBER BEING CUT OFF OR PROGRESSIVELY REDUCED DURING SAID SHUTOFF PERIOD, MEANS FOR VIBRATING THE SAID ELECTRODE SYSTEM DURING SAID SHUT-OFF PERIOD TO DISLODGE DUST COLLECTED ON SAID SYSTEM, A DUST-COLLECTING HOPPER DISPOSED BELOW THE ASSEMBLY OF CHAMBERS, AND MEANS FOR DIRECTING SAID DISLODGED DUST INTO THE DUST-COLLECTING HOPPER, THE IMPROVEENT WHICH COMPRISES A CHUTE DISPOSED BELOW THE ASSEMBLY OF CHAMBERS, SAID CHUTE HAVING A LOWER END EXTENDING INTO THE DUST COLLECTING HOPPER IN AXIAL ALIGNMENT WITH THE AXIS OF SAID ASSEMBLY OF CHAMBERS AND AN UPPER END
Claim 2
Dependent Claim
165 words
IN AN ELECTROSTATIC PRECIPITATOR COMPRISING AN ASSEMBLY OF A PLURALITY OF VERTICAL CHAMBERS DISPOSED ADJACENT TO EACH OTHER IN A VERTICAL AXIS, DUSTLADEN GAS BEING CAUSED TO FLOW FROM A DUCT THROUGH THE SAID CHAMBERS, EACH SAID CHAMBER BEING PROVIDED WITH AND ELECTRODE SYSTEM TO WHICH HIGH-TENSION ELECTRIC CURRENT IS SUPPLIED, MEANS FOR PERIODICALLY SHUTTING OFF A SAID CHAMBER FROM THE FLOW OF SAID DUST-LADEN GAS, THE FLOW OF CURRENT TO THE ELECTRODE SYSTEM IN THE SAID CHAMBER BEING CUT OFF OR PROGRESSIVELY REDUCED DURING SAID SHUTOFF PERIOD, MEANS FOR VIBRATING THE SAID ELECTRODE SYSTEM DURING SAID SHUT-OFF PERIOD TO DISLODGE DUST COLLECTED ON SAID SYSTEM, A DUST-COLLECTING HOPPER DISPOSED BELOW THE ASSEMBLY OF CHAMBERS, AND MEANS FOR DIRECTING SAID DISLODGED DUST INTO THE DUST-COLLECTING HOPPER, THE IMPROVEENT WHICH COMPRISES A CHUTE DISPOSED BELOW THE ASSEMBLY OF CHAMBERS, SAID CHUTE HAVING A LOWER END EXTENDING INTO THE DUST COLLECTING HOPPER IN AXIAL ALIGNMENT WITH THE AXIS OF SAID ASSEMBLY OF CHAMBERS AND AN UPPER END
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |