US5328441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imperforate bowl centrifugal separator with solids gate
Assignee: Pneumatic Scale Corp
•
Filing: 1993-07-20
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Granted: 1994-07-12
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Expires: 2013-07-20
Abstract
Abstract An imperforate bowl centrifugal separator includes an imperforate separator bowl; a housing for rotatably mounting the bowl including a chamber in which the bowl rotates; an outlet for removing the centrate from the chamber; a discharge port in the housing for removing solids from the bowl; and a gate for closing the discharge port during extraction of centrate from the chamber and opening the discharge port to remove the solids after substantially all of the centrate has been removed from the chamber. The solids and centrate are removed from the same outlet in the bottom of the bowl.
Inventors
- 👤 Robert B. Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:05
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/04; B04B11/05; B04B11/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
165 words
An imperforate centrifugal separator for separating a feed material into centrate and solids, comprising: an imperforate separator bowl having an inlet for the feed material and an outlet for the centrate and solids; a stationary housing for rotatably mounting said bowl, said housing having a chamber surrounding said bowl; a discharge port in said housing for allowing solids that are transferred from said bowl to said chamber to exit from said housing; said centrate being transferred from said bowl to said chamber through said outlet; means for transferring said solids from said bowl to said discharge port through said outlet; means for removing said centrate transferred from said outlet from said chamber; and a gate mechanism mounted to said housing having a closed position for closing said discharge port during removal of said centrate from said chamber and having an open position for opening said discharge port after substantially all of said centrate has been removed from said chamber to allow removal of said solids.
Claim 2
Dependent Claim
165 words
An imperforate centrifugal separator for separating a feed material into centrate and solids, comprising: an imperforate separator bowl having an inlet for the feed material and an outlet for the centrate and solids; a stationary housing for rotatably mounting said bowl, said housing having a chamber surrounding said bowl; a discharge port in said housing for allowing solids that are transferred from said bowl to said chamber to exit from said housing; said centrate being transferred from said bowl to said chamber through said outlet; means for transferring said solids from said bowl to said discharge port through said outlet; means for removing said centrate transferred from said outlet from said chamber; and a gate mechanism mounted to said housing having a closed position for closing said discharge port during removal of said centrate from said chamber and having an open position for opening said discharge port after substantially all of said centrate has been removed from said chamber to allow removal of said solids.
Claim 3
Dependent Claim
18 words
The imperforate bowl centrifugal separator of claim 1 in which said gate mechanism is located in said chamber.
Claim 4
Dependent Claim
27 words
The imperforate bowl centrifugal separator of claim 1 in which said gate mechanism is rotatably mounted to said housing for rotating between the closed and open positions.
Claim 5
Dependent Claim
27 words
The imperforate bowl centrifugal separator of claim 1 in which said gate mechanism is translationally mounted to said housing for sliding between the closed and open positions.
Claim 6
Dependent Claim
20 words
The imperforate bowl centrifugal separator of claim 1 in which said outlet is in the bottom of said separator bowl.
References Cited (Backward Citations)
US302612A
Cited
US909188A
Cited
US1903298A
Cited
US1940812A
Cited
US2622795A
Cited
US2894634A
Cited
US2932401A
Cited
US3056505A
Cited
US3092579A
Cited
US3294317A
Cited
US3961746A
Cited
WO1980000421A1
Cited
US4784634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |