US3761014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuging apparatus
Assignee: MSE Holdings Ltd
•
Filing: 1971-05-12
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Granted: 1973-09-25
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Expires: 1991-05-12
Abstract
Abstract Centrifuging apparatus comprises a main centrifuging chamber having a bypass containing sensing means to sense when a certain flow is produced in the bypass as a result of sediment increase in the main centrifuging chamber, the main chamber having a movable wall movable to open a discharge aperture of the main chamber and to define a secondary centrifuging chamber with the bypass to maintain a centrifuging action when the main chamber is being discharged of sediment.
Inventors
- 👤 T Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/04; B04B11/05; B04B1/00; B04B1/04; B04B1/10; B04B1/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
171 words
A centrifuging apparatus comprising: means defining an inlet for a mixture having components of different specific gravities; means defining an outlet for the component of lesser specific gravity of said mixture; a first rotatable wall structure defining an internal space communicating with said inlet and said outlet; a second rotatable wall structure coaxial with and encircling said first structure, said second structure defining an outer wall portion of a first centrifuging chamber communicating with said outlet and also defining for said chamber a discharge aperture for discharging the component of greater specific gravity accumulated at said outer wall portion; and a third wall structure displaceable relative to the first and Second structures and having a first operative position in which said third wall structure closes said discharge aperture and permits communication between said inlet and said first chamber and a second operative position in which said aperture is open and said third wall structure engages said first wall structure to define therewith a second centrifuging chamber into which said inlet opens.
Claim 2
Dependent Claim
171 words
A centrifuging apparatus comprising: means defining an inlet for a mixture having components of different specific gravities; means defining an outlet for the component of lesser specific gravity of said mixture; a first rotatable wall structure defining an internal space communicating with said inlet and said outlet; a second rotatable wall structure coaxial with and encircling said first structure, said second structure defining an outer wall portion of a first centrifuging chamber communicating with said outlet and also defining for said chamber a discharge aperture for discharging the component of greater specific gravity accumulated at said outer wall portion; and a third wall structure displaceable relative to the first and Second structures and having a first operative position in which said third wall structure closes said discharge aperture and permits communication between said inlet and said first chamber and a second operative position in which said aperture is open and said third wall structure engages said first wall structure to define therewith a second centrifuging chamber into which said inlet opens.
Claim 3
Dependent Claim
55 words
An apparatus as claimed in claim 1, wherein said first rotatable structure defines for said first chamber a bypass from said inlet to said outlet and adapted to receive an increasing amount of mixture from said inlet as the centrifuged component of greater specific gravity increasingly constricts communication between said inlet and said first chamber.
Claim 4
Dependent Claim
18 words
An apparatus as claimed in claim 2, and comprising sensing means for sensing fluid flow in said bypass.
Claim 5
Dependent Claim
29 words
An apparatus as claimed in claim 3, wherein said sensing means are a resonant ultrasonic system which has a resonant state until a certain flow exists in said bypass.
Claim 6
Dependent Claim
47 words
An apparatus as claimed in claim 2, wherein said third structure is movable axially of said first and second structures and in said second operative position is within the space encircled by said second structure and defines therewith a continuously annular discharge zone of said discharge aperture.
Claim 7
Dependent Claim
36 words
An apparatus as claimed in claim 2, wherin said second structure defines said outlet in the form of an annular outlet and said first structure defines a further, outwardly opening, outlet opening into said annular outlet.
Claim 8
Dependent Claim
30 words
An apparatus as claimed in claim 1, wherein at least one of said first wall structures and said third wall structure diverges towards the other to define said second chamber.
Claim 9
Dependent Claim
30 words
An apparatus according to claim 1, and comprising a stationary structure defining said inlet and a movable member axially displaceable within said stationary structure and carrying said third wall structure.
Claim 10
Dependent Claim
18 words
An apparatus as claimed in claim 1 and comprising means for changing the speed of said first chamber.
Claim 11
Dependent Claim
25 words
An apparatus as claimed in claim 1, wherein the first and second wall structures are independently rotatable and the second wall structure has braking means.
Claim 12
Dependent Claim
28 words
An apparatus as claimed in claim 1, wherein said first chamber has a peripheral wall having a helical rib to assist the discharge of material from that wall.
References Cited (Backward Citations)
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US3255958A
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US3371859A
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US3494544A
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US3519200A
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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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |