Patent US5122981A successfully refreshed from Google Patents.
Patent US4312650A successfully refreshed from Google Patents.
US4312650A
Expired / Lapsed
US
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Particle separator
Assignee: IHI Corp
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Filing: 1980-10-07
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Granted: 1982-01-26
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Expires: 2000-10-07
Abstract
Abstract A multi-stage particle separator provides a scroll and cylinder configuration in which the scroll establishes a swirling chamber and a first stage of separation and the cylinder establishes a continuing and second stage of separation.
Inventors
- 👤 Masao Seki
- 👤 Hideo Sato
- 👤 Takashi Kawata
- 👤 Akira Omori
- 👤 Hidekazu Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:06
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B04; B04C; B04C1/00; B04C3/00; B04C5/00; B04C5/08; B04C5/081
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
184 words
A particle separator comprising: (a) a cylinder disposed substantially horizontally; (b) a scroll disposed so as to surround and between the ends thereof communicate with substantially the upper half of said cylinder at one end thereof and for a portion of its length thereby defining a swirling chamber; (c) a substantially vertical inlet extending from and communicating with one end of said scroll enabling dust or particle laden gas flowing through said inlet to swirl in said swirling chamber; (d) a first substantially vertical dust-particle outlet extending from and communicating with the other end of said scroll enabling dust or solid particles separated from gas in said swirling chamber to flow into said first outlet; (e) a gas outlet extending from the other end of said cylinder and mounted coaxially thereof for discharging gas from said cylinder through said gas outlet; and (f) a second substantially vertical dust-particle outlet extending from the bottom of said cylinder adjacent said gas outlet providing means for dust or solid particles still entrained in the gas flowing through said cylinder to be collected in said second dust-particle outlet.
Claim 2
Dependent Claim
184 words
A particle separator comprising: (a) a cylinder disposed substantially horizontally; (b) a scroll disposed so as to surround and between the ends thereof communicate with substantially the upper half of said cylinder at one end thereof and for a portion of its length thereby defining a swirling chamber; (c) a substantially vertical inlet extending from and communicating with one end of said scroll enabling dust or particle laden gas flowing through said inlet to swirl in said swirling chamber; (d) a first substantially vertical dust-particle outlet extending from and communicating with the other end of said scroll enabling dust or solid particles separated from gas in said swirling chamber to flow into said first outlet; (e) a gas outlet extending from the other end of said cylinder and mounted coaxially thereof for discharging gas from said cylinder through said gas outlet; and (f) a second substantially vertical dust-particle outlet extending from the bottom of said cylinder adjacent said gas outlet providing means for dust or solid particles still entrained in the gas flowing through said cylinder to be collected in said second dust-particle outlet.
Claim 3
Dependent Claim
29 words
A particle separator as claimed in claim 1 wherein said cylinder between said scroll and gas outlet is formed with a diameter which gradually increases toward said gas outlet.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |