US5137552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collecting cell
Assignee: Azbil Corp
•
Filing: 1990-12-20
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Granted: 1992-08-11
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Expires: 2010-12-20
Abstract
Abstract A dust collecting cell for a dust collector has a plurality of first electrode plates, a plurality of second electrode plates each disposed between the adjoining two of the first electrode plates in a parallel and spaced apart relation thereto, and a block defining a plurality of resistors having a high value of resistance which are connected between the first or second electrode plates and a source of high voltage supply. Even if a dielectric breakdown may occur between any two adjoining electrode plates, the resistors ensure that the discharge take place only as a local phenomenon, and that the cell make only a low noise accompanying the discharge.
Inventors
- 👤 Toshihiko Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:35
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/66; B03C3/40; B03C3/45
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
A dust collecting cell comprising: a plurality of first electrode plates; a plurality of second electrode plates each disposed between an adjoining two of said first electrode plates, said plurality of first electrode plates and said plurality of second electrode plates arranged in a parallel and spaced apart relation; a source of high voltage power supply; means having a high ohmic resistance connecting an output of one polarity of said high voltage power supply to said first plurality of electrode plates; and means coupling an output of said high voltage power supply of opposite polarity to said one polarity to said second plurality of electrode plates.
Claim 2
Dependent Claim
106 words
A dust collecting cell comprising: a plurality of first electrode plates; a plurality of second electrode plates each disposed between an adjoining two of said first electrode plates, said plurality of first electrode plates and said plurality of second electrode plates arranged in a parallel and spaced apart relation; a source of high voltage power supply; means having a high ohmic resistance connecting an output of one polarity of said high voltage power supply to said first plurality of electrode plates; and means coupling an output of said high voltage power supply of opposite polarity to said one polarity to said second plurality of electrode plates.
Claim 3
Dependent Claim
29 words
A dust collecting cell as set forth in claim 1, wherein said means having a high ohmic resistance is defined by a single block having a high ohmic resistance.
Claim 4
Dependent Claim
30 words
A dust collecting cell as set forth in claim 2, wherein said block is formed from a electrically conductive resin having a resistivity of 10 5 to 10 10 ohms.
Claim 5
Dependent Claim
31 words
A dust collecting cell as set forth in claim 3, wherein said block has a plurality of contact portions each abutting resiliently upon one of said first or second electrode plates.
Claim 6
Dependent Claim
37 words
A dust collecting cell as set forth in claim 3, wherein said block has a plurality of grooves and one edge of each of said first or second electrode plates is fitted in one of said grooves.
Claim 7
Dependent Claim
43 words
A dust collecting cell as set forth in claim 3, wherein said block is in the form of a hollow cylinder extending through said first or second electrode plates adjacent to one edge thereof and is thereby connected electrically to said electrode plates.
References Cited (Backward Citations)
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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) | 1995-08-11 | 1996-02-10 | 1996-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-11 | 2000-02-10 | 2000-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-11 | 2004-02-10 | 2004-08-11 | $7700.00 | Window Closed / Lapsed |