US3966117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge discharge device
Assignee: Eastman Kodak Co
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Filing: 1975-06-06
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Granted: 1976-06-29
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Expires: 1995-06-06
Abstract
Abstract A device for use in discharging a fluid from a fluid processing apparatus. In accordance with one aspect of the invention, the device is suitable for those applications requiring both a low level of surface turbulence and a relatively high level of sub-surface turbulence. Low levels of surface turbulence generally result in small amounts of splashing and foaming, and also enable an effective fluid level to be established. Higher levels of sub-surface turbulence are often necessary in order to redisperse particles which might have migrated or settled in the fluid.
Inventors
- 👤 Walter Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:24
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/08; B04B11/082
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
164 words
A discharge device for use in discharging a fluid from a fluid processing apparatus, the apparatus having means for causing relative motion of the fluid with respect to said discharge device, and the apparatus further having means for positioning said discharge device in the fluid, said discharge device comprising: a body having a pair of converging side surfaces defining a leading surface on said body, whereby when said body is positioned in a fluid and the fluid is caused to move relatively to said body, said leading surface parts the fluid, thereby enabling the fluid to flow around and past said body in a generally streamlined flow pattern; means defining at least one inlet port in one of said side surfaces; an outlet tube extending from said body; and means defining a passageway connecting said inlet port to said outlet tube, said inlet port being effective to shear a portion of the relatively moving fluid into said passageway for discharge from said outlet tube.
Claim 2
Dependent Claim
164 words
A discharge device for use in discharging a fluid from a fluid processing apparatus, the apparatus having means for causing relative motion of the fluid with respect to said discharge device, and the apparatus further having means for positioning said discharge device in the fluid, said discharge device comprising: a body having a pair of converging side surfaces defining a leading surface on said body, whereby when said body is positioned in a fluid and the fluid is caused to move relatively to said body, said leading surface parts the fluid, thereby enabling the fluid to flow around and past said body in a generally streamlined flow pattern; means defining at least one inlet port in one of said side surfaces; an outlet tube extending from said body; and means defining a passageway connecting said inlet port to said outlet tube, said inlet port being effective to shear a portion of the relatively moving fluid into said passageway for discharge from said outlet tube.
Claim 3
Dependent Claim
37 words
A device as claimed in claim 1, wherein a dispersing member is located on said body, said dispersing member producing sub-surface turbulence of the fluid, thereby inhibiting the migration and the settling of particles in the fluid.
Claim 4
Dependent Claim
28 words
A device as claimed in claim 1, wherein at least one sensing probe is mounted to said body for producing a signal indicating a predetermined level of fluid.
Claim 5
Dependent Claim
161 words
A discharge device for use in discharging a fluid from a fluid processing apparatus, the apparatus having means for causing relative motion of the fluid with respect to said discharge device, and the apparatus further having means for positioning said discharge device in the fluid, said discharge devices comprising: a body having a pair of converging side surfaces defining a straight narrow leading edge, whereby when said body is positioned in a fluid and the fluid is caused to move relatively to said body, said leading edge parts the fluid, whereupon the fluid flows in a generally streamlined flow pattern around and past said body; means defining at least one inlet port in one of said side surfaces; an outlet tube extending from said body; and means defining a passageway connecting said inlet port to said outlet tube, said inlet port being effective to shear a portion of the relatively moving fluid into said passageway for discharge from said outlet tube.
Claim 6
Dependent Claim
161 words
A discharge device for use in discharging a fluid from a fluid processing apparatus, the apparatus having means for causing relative motion of the fluid with respect to said discharge device, and the apparatus further having means for positioning said discharge device in the fluid, said discharge devices comprising: a body having a pair of converging side surfaces defining a straight narrow leading edge, whereby when said body is positioned in a fluid and the fluid is caused to move relatively to said body, said leading edge parts the fluid, whereupon the fluid flows in a generally streamlined flow pattern around and past said body; means defining at least one inlet port in one of said side surfaces; an outlet tube extending from said body; and means defining a passageway connecting said inlet port to said outlet tube, said inlet port being effective to shear a portion of the relatively moving fluid into said passageway for discharge from said outlet tube.
Claim 7
Dependent Claim
37 words
A device as claimed in claim 4 wherein a dispersing member is located on said body, said dispersing member producing sub-surface turbulence of the fluid, thereby inhibiting the migration and the settling of particles in the fluid.
Claim 8
Dependent Claim
28 words
A device as claimed in claim 4, wherein at least one sensing probe is mounted to said body for producing a signal indicating a predetermined level of fluid.
Claim 9
Independent Claim
160 words
A device for discharging fluid from a centrifuge bowl, the bowl provided with means for rotation, whereupon as the bowl rotates, the fluid contained in the bowl moves relatively to said device, said device comprising: a body having a top surface, a bottom surface, and two outwardly curved side surfaces, said side surfaces being joined together to form a front edge and a rear edge, whereby during operation, said front edge parts the relatively moving fluid, whereupon the fluid flows in a generally streamlined flow pattern around said body and past the rear edge; at least one inlet port in one of said side surfaces of said body; an outlet tube located rearwardly, as defined by the direction of fluid flow, in relation to said inlet port; a passageway connecting said inlet port to said outlet tube, whereby a portion of the relatively moving fluid enters said inlet port, passes through said passageway, and is expelled by said outlet tube.
Claim 10
Independent Claim
160 words
A device for discharging fluid from a centrifuge bowl, the bowl provided with means for rotation, whereupon as the bowl rotates, the fluid contained in the bowl moves relatively to said device, said device comprising: a body having a top surface, a bottom surface, and two outwardly curved side surfaces, said side surfaces being joined together to form a front edge and a rear edge, whereby during operation, said front edge parts the relatively moving fluid, whereupon the fluid flows in a generally streamlined flow pattern around said body and past the rear edge; at least one inlet port in one of said side surfaces of said body; an outlet tube located rearwardly, as defined by the direction of fluid flow, in relation to said inlet port; a passageway connecting said inlet port to said outlet tube, whereby a portion of the relatively moving fluid enters said inlet port, passes through said passageway, and is expelled by said outlet tube.
Claim 11
Dependent Claim
39 words
A device as claimed in claim 7, wherein a dispersing member is located near the bottom of said body, said dispersing member producing sub-surface turbulence of the fluid, thereby inhibiting the migration and settling of particles in the fluid.
Claim 12
Dependent Claim
29 words
A device as claimed in claim 7, wherein at least one sensing probe is located near said front edge for producing a signal indicating a predetermined level of fluid.
Claim 13
Dependent Claim
28 words
A device as claimed in claim 1, wherein said leading surface of said body is a straight narrow leading edge substantially perpendicular to the direction of fluid flow.
Claim 14
Dependent Claim
22 words
A device as claimed in claim 4 wherein said straight narrow leading edge is substantially perpendicular to the direction of fluid flow.
Claim 15
Dependent Claim
22 words
A device as claimed in claim 7 wherein said front edge is straight and substantially perpendicular to the direction of fluid flow.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |