Patent US4432062A successfully refreshed from Google Patents.
US4432062A
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Method for optimizing the knock frequency of an electrofilter system
Assignee: GEA Group AG
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Filing: 1981-01-19
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Granted: 1984-02-14
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Expires: 2001-01-19
Abstract
Abstract The optimum knock frequency of an electrofilter installation consisting of several filters is determined. Each filter includes a microcomputer controller and a knocking device. The knock frequency is controlled by a superimposed master computer and the optimum knock frequency for a given knock frequency, varying the frequency by the master computer, again measuring the long-term average of the dust loading, and continuing to change the frequency and measure the dust loading until the dust loading value reaches a minimum.
Inventors
- 👤 Helmut Herklotz
- 👤 Gunter Mehler
- 👤 Franz Neulinger
- 👤 Helmut Schummer
- 👤 Horst Daar
- 👤 Walter Schmidt
- 👤 Heinrich Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:51
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/74; B03C3/76; B03C3/763
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A method for optimizing the knock frequency of an electrofilter installation having a plurality of electrofilters, for treating dust ladened gas to obtain a purified gas connected such that the gas to be purified flows through them in series, comprising the steps of: selecting an initial repetition rate of knocks for each of the filters; automatically controlling each of said electrofilters so that only one of the electrofilters is being knocked at a time; measuring the long term average of the measured dust loading of the purified gas from the electrofilter installation; changing the interval between knocks automatically; and repeating the measuring and changing steps until the long term average of the measured dust loading approaches a minimum.
Claim 2
Independent Claim
118 words
A method for optimizing the knock frequency of an electrofilter installation having a plurality of electrofilters, for treating dust ladened gas to obtain a purified gas connected such that the gas to be purified flows through them in series, comprising the steps of: selecting an initial repetition rate of knocks for each of the filters; automatically controlling each of said electrofilters so that only one of the electrofilters is being knocked at a time; measuring the long term average of the measured dust loading of the purified gas from the electrofilter installation; changing the interval between knocks automatically; and repeating the measuring and changing steps until the long term average of the measured dust loading approaches a minimum.
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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) | 1987-02-13 | 1987-08-15 | 1988-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-13 | 1991-08-15 | 1992-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-13 | 1995-08-15 | 1996-02-14 | $7700.00 | Window Closed / Lapsed |