Patent US3570217A successfully refreshed from Google Patents.
US3570217A
Expired / Lapsed
US
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Cleaning device for electrostatic dust collector discharge electrodes
Assignee: GEA Group AG
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Filing: 1969-07-08
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Granted: 1971-03-16
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Expires: 1989-07-08
Abstract
Abstract DUST IS SHAKEN FROM THE DISCHARGE ELECTRODES IN AN ELECTROSTATIC DUST SEPARATOR BY MEANS OF HITTING AN ANVIL SECURED TO THE FRAMEWORK, FROM WHICH THE ELECTRODES ARE HUNG, WITH A FREELY FALLING HAMMER WHICH ALTERNATELY STRIKES A VERTICAL SIDE AND AN INCLINED SIDE OF THE ANGLES TO PRODUCE VIBRATIONS IN DIFFERENT DIRECTIONS AND INTENSITY.
Inventors
- 👤 Walter Steuernagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:47
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/74; B03C3/76; B03C3/761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |