US3898060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic precipitator
Assignee: Individual
•
Filing: 1974-01-28
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Granted: 1975-08-05
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Expires: 1994-01-28
Abstract
Abstract An electrostatic precipitator drum comprises a plurality of duplicate precipitator cell sections which are enclosed by a housing having a first chamber which is in axial communication with certain of the cells and at least one other chamber which is in radial communication with certain other of the cells. Means are provided for generating an electrostatic field in the cells in communication with the first chamber and means are provided for deactivating and scrubbing the cells in communication with the second chamber.
Inventors
- 👤 Herman S Starbuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/74
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
160 words
AN ELECTROSTATIC PRECIPITATOR COMPRISING A HOUSING INCLUDING A PRECIPITATOR CHAMBER AND A CLEANING CHAMBER OUTWARDLY THEREFROM, A DRUM ROTATABLY MOUNTED IN THE HOUSING AND MEANS PHYSICALLY ISOLATING THE PRECIPITATOR CHAMBER FROM THE CLEANING CHAMBER THE DRUM SUBDIVIDED INTO A PLURALITY OF DUPLICATE PRECIPITATING CELLS CERTAIN OF WHICH ARE IN SELECTIVE COMMUNICATION WITH THE PRECIPITATOR CHAMBER AND CERTAIN OTHERS OF WHICH ARE IN SELECTIVE COMMUNICATION WITH THE CLEANING CHAMBER, MEANS IMPARTING AN ELECTROSTATIC FIELD ACROSS THOSE CELLS IN COMMUNICATION WITH SAID PRECIPITATOR CHAMBER, AN INLET PORT AND AN OUTLET PORT IN SAID PRECIPITATION CHAMBER FOR DIRECTING A FLUID MEDIUM THROUGH SAID PRECIPITATOR CHAMBER AND AXIALLY OF SAID DRUM, MEANS IN THE CLEANING CHAMBER FOR INTRODUCING A CLEANING MEDIA INTO SAID CLEANING CHAMBER AND RADIALLY OF SAID DRUM, AND MEANS FOR ROTATING SAID DRUM RELATIVE TO SAID HOUSING IN STEP-BY-STEP MANNER TO SELECTIVELY INDEX AND ADVANCE THE PRECIPITATING CELLS INTO AND OUT OF COMMUNICATION WITH ONE OR THE OTHER OF SAID CHAMBERS.
Claim 2
Dependent Claim
160 words
AN ELECTROSTATIC PRECIPITATOR COMPRISING A HOUSING INCLUDING A PRECIPITATOR CHAMBER AND A CLEANING CHAMBER OUTWARDLY THEREFROM, A DRUM ROTATABLY MOUNTED IN THE HOUSING AND MEANS PHYSICALLY ISOLATING THE PRECIPITATOR CHAMBER FROM THE CLEANING CHAMBER THE DRUM SUBDIVIDED INTO A PLURALITY OF DUPLICATE PRECIPITATING CELLS CERTAIN OF WHICH ARE IN SELECTIVE COMMUNICATION WITH THE PRECIPITATOR CHAMBER AND CERTAIN OTHERS OF WHICH ARE IN SELECTIVE COMMUNICATION WITH THE CLEANING CHAMBER, MEANS IMPARTING AN ELECTROSTATIC FIELD ACROSS THOSE CELLS IN COMMUNICATION WITH SAID PRECIPITATOR CHAMBER, AN INLET PORT AND AN OUTLET PORT IN SAID PRECIPITATION CHAMBER FOR DIRECTING A FLUID MEDIUM THROUGH SAID PRECIPITATOR CHAMBER AND AXIALLY OF SAID DRUM, MEANS IN THE CLEANING CHAMBER FOR INTRODUCING A CLEANING MEDIA INTO SAID CLEANING CHAMBER AND RADIALLY OF SAID DRUM, AND MEANS FOR ROTATING SAID DRUM RELATIVE TO SAID HOUSING IN STEP-BY-STEP MANNER TO SELECTIVELY INDEX AND ADVANCE THE PRECIPITATING CELLS INTO AND OUT OF COMMUNICATION WITH ONE OR THE OTHER OF SAID CHAMBERS.
Claim 3
Dependent Claim
60 words
An electrostatic precipitator as called for in claim 1, which includes a mechanical pre-filter for removing particulate matter of a predetermined size from said fluid medium, and an ionizing chamber for exciting particulate matter remaining in said fluid medium with a common electrical charge, said prefilter and ionizing chamber disposed in advance of and in open communication with the housing.
Claim 4
Dependent Claim
37 words
An electrostatic precipitator as called for in claim 1, which includes an after-filter disposed to the rear of and in open communication with the housing for removing particulate matter remaining in the Fluid medium leaving the housing.
Claim 5
Dependent Claim
28 words
An electrostatic precipitator as called for in claim 1, which includes means for inducing a flow of fluid medium through the precipitator chamber and axially of the drum.
Claim 6
Dependent Claim
45 words
An electrostatic precipitator as called for in claim 1, which includes an inflatable seal carried by the housing and adapted to selectively engage the periphery of the drum for isolating the precipitating cells which are in communication with said cleaning chamber from the precipitating chamber.
Claim 7
Dependent Claim
137 words
An electrostatic precipitator as called for in claim 5, which includes means for sequentially: a. deflating the seal to terminate the sealing relationship between certain of the cells and an inner wall of the housing; b. deactivating the electrostatic field across those cells in communication with the precipitator chamber; c. rotating the drum to advance that cell of the precipitator chamber adjacent the cleaning chamber into the cleaning chamber while simultaneously advancing that cell of the cleaning chamber adjacent the precipitator chamber into the precipitator chamber; d. inflating the seal to effect a sealing relationship between certain other of the cells and an inner wall of the housing; e. reactivating an electrostatic field across the cells in communication with the precipitator chamber; and f. introducing a cleaning media into the cells in communication with the cleaning chamber.
Claim 8
Dependent Claim
32 words
An electrostatic precipitator as called for in claim 6, including means for introducing a drying media into the cells in said cleaning chamber prior to the advancement thereof into said precipitator chamber.
Claim 9
Dependent Claim
48 words
An electrostatic precipitator as called for in claim 1, wherein each cell comprises a series of electrodes disposed in nested, spaced, parallel relationship, the individual electrodes comprising a pair of intersecting plates which diverge from respective apices located at spaced intervals along a common radius of the drum.
Claim 10
Dependent Claim
33 words
An electrostatic precipitator as called for in claim 8, wherein the plates of one electrode of each cell diverge from an apex located at the center of said drum, defining a sector thereof.
Claim 11
Dependent Claim
59 words
An electrostatic precipitator as called for in claim 9, which includes an insulating-spacer interposed between said sector-defining electrode and the other electrodes of each cell; and a plurality of conducting-spacers disposed between the plates of the alternate electrodes of each cell, maintaining the plates of said alternate electrodes in proper spaced relationship and in electrical communication with one another.
Claim 12
Dependent Claim
55 words
An electrostatic precipitator as called for in claim 10, which includes a retaining ring extending about the periphery of the drum and rigidly secured to each of said sector-defining electrodes; and a flexible spacer interposed between said retaining ring and the other electrodes of each cell maintaining said electrodes in compression against said insulating spacer.
Claim 13
Dependent Claim
26 words
An electrostatic precipitator as called for in claim 10, wherein adjacent electrodes of each cell are adapted to be excited with electrical charges of opposite polarity.
Claim 14
Dependent Claim
26 words
An electrostatic precipitator as called for in claim 1, wherein said cleaning chamber includes a washing compartment and a drying compartment physically isolated from one another.
Claim 15
Dependent Claim
28 words
An electrostatic precipitator as called for in claim 13, which includes means for introducing drying media radially of said drum into cells in communication with said drying compartment.
Claim 16
Dependent Claim
21 words
An electrostatic precipitator as called for in claim 14, which includes means for introducing a dielectric fluid into said drying media.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |