Patent US4874560A successfully refreshed from Google Patents.
US4874560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for effecting selected patterns of fluid flow
Assignee: Eau Viron Inc
•
Filing: 1989-06-30
•
Granted: 1989-10-17
•
Expires: 2009-06-30
Abstract
Abstract Disclosed are methods and apparatus for effecting a selected pattern of fluid flow wherein a first fluid is caused to flow along the surface of a body and a second fluid is caused to flow out of a plurality of holes in the surface of the body. The holes are arranged in a pattern so that the flow of the second fluid creates a baffle to change the direction of flow of the first fluid. The pattern is a grouping of holes wherein the grouping may be a straight line or a helix around a tubular body. The holes are rectangular in cross-section to form a fan-shaped pattern in the fluid passing through the holes. The longitudinal axis of each hole does not intersect the center of adjacent holes.
Inventors
- 👤 James A. Titmas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:03
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/313; B01F25/3131
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
86 words
Apparatus for effecting a selected pattern of fluid flow comprising a body for separating a first fluid and second fluid having a first surface along which the first fluid flows, a second surface, and a plurality of discrete groupings of holes passing through the body from the second surface to the first surface through which a second fluid flows, wherein each grouping contains a plurality of closely associated holes arranged in a substantially straight line and each grouping is substantially perpendicular to the next successive grouping.
Claim 2
Dependent Claim
86 words
Apparatus for effecting a selected pattern of fluid flow comprising a body for separating a first fluid and second fluid having a first surface along which the first fluid flows, a second surface, and a plurality of discrete groupings of holes passing through the body from the second surface to the first surface through which a second fluid flows, wherein each grouping contains a plurality of closely associated holes arranged in a substantially straight line and each grouping is substantially perpendicular to the next successive grouping.
Claim 3
Dependent Claim
104 words
Apparatus for effecting a selected pattern of fluid flow comprising: an inner tubular pipe having a plurality of discrete groupings of holes therein, wherein each grouping contains a plurality of closely associated holes arranged in a substantially straight line and each grouping is substantially perpendicular to the next successive grouping; an outer tubular pipe concentric with the inner pipe forming an annulus between the two pipes; means for causing a first fluid to flow through the annulus between the two pipes; and means for causing a second fluid to flow from the inner pipe into the annulus through said holes in the inner pipe.
Claim 4
Dependent Claim
104 words
Apparatus for effecting a selected pattern of fluid flow comprising: an inner tubular pipe having a plurality of discrete groupings of holes therein, wherein each grouping contains a plurality of closely associated holes arranged in a substantially straight line and each grouping is substantially perpendicular to the next successive grouping; an outer tubular pipe concentric with the inner pipe forming an annulus between the two pipes; means for causing a first fluid to flow through the annulus between the two pipes; and means for causing a second fluid to flow from the inner pipe into the annulus through said holes in the inner pipe.
Claim 5
Dependent Claim
151 words
Apparatus for effecting wet oxidation comprising: a first pipe extending downward into a borehole; a second pipe extending downward into the borehole surrounding and substantially concentric with the first pipe forming a first annulus between the first and second pipes; a third pipe extending downward into the borehole surrounding and substantially concentric with the first and second pipe forming a second annulus between the second and third pipes; means for pumping process fluid down one annulus and back up the other annulus; and means for pumping oxygen down through the first pipe, wherein the first pipe has a plurality of discrete groupings of holes, wherein each grouping contains a plurality of closely associated holes arranged in a helix and each grouping is substantially perpendicular to the next successive grouping, such that the flow of oxygen through the holes creates a baffle for changing the direction of flow of the process fluid.
Claim 6
Dependent Claim
151 words
Apparatus for effecting wet oxidation comprising: a first pipe extending downward into a borehole; a second pipe extending downward into the borehole surrounding and substantially concentric with the first pipe forming a first annulus between the first and second pipes; a third pipe extending downward into the borehole surrounding and substantially concentric with the first and second pipe forming a second annulus between the second and third pipes; means for pumping process fluid down one annulus and back up the other annulus; and means for pumping oxygen down through the first pipe, wherein the first pipe has a plurality of discrete groupings of holes, wherein each grouping contains a plurality of closely associated holes arranged in a helix and each grouping is substantially perpendicular to the next successive grouping, such that the flow of oxygen through the holes creates a baffle for changing the direction of flow of the process fluid.
Claim 7
Dependent Claim
150 words
Apparatus for effecting a selected pattern of fluid flow comprising: a body for separating two fluids and having a first surface, a second surface and holes passing from said second surface to said first surface; means for causing a first fluid to flow along said first surface of the body; and means for causing a second fluid to flow through said holes from said second surface to said first surface, wherein the holes are arranged in a pattern so that the flow of the second fluid therefrom creates a baffle to change the direction of flow of the first fluid; wherein the outlet end of each hole is rectangular in cross-section and the extended longitudinal axis of each rectangular hole is canted so as not to intersect the adjacent holes and so that the fan-shaped pattern formed by fluid emitted from each hole overlaps the fan-shaped patterns from adjacent holes.
Claim 8
Dependent Claim
150 words
Apparatus for effecting a selected pattern of fluid flow comprising: a body for separating two fluids and having a first surface, a second surface and holes passing from said second surface to said first surface; means for causing a first fluid to flow along said first surface of the body; and means for causing a second fluid to flow through said holes from said second surface to said first surface, wherein the holes are arranged in a pattern so that the flow of the second fluid therefrom creates a baffle to change the direction of flow of the first fluid; wherein the outlet end of each hole is rectangular in cross-section and the extended longitudinal axis of each rectangular hole is canted so as not to intersect the adjacent holes and so that the fan-shaped pattern formed by fluid emitted from each hole overlaps the fan-shaped patterns from adjacent holes.
Claim 9
Dependent Claim
195 words
Apparatus for effecting a selected pattern of fluid flow comprising: an inner tubular pipe having a plurality of holes therein; an outer tubular pipe concentric with the inner pipe forming an annulus between the two pipes; means for causing a first fluid to flow through the annulus between the two pipes; and means for causing a second fluid to flow from the inner pipe into the annulus through said holes in the inner pipe, wherein the holes are arranged in a pattern including a plurality of groupings of holes with each grouping comprising a plurality of holes arranged in a helix so that the flow of the second fluid creates a baffle to change the direction of flow of the first fluid; wherein each hole in the inner pipe is rectangular in the cross-section at the outer surface of the pipe to create a fan-shaped pattern in the second fluid as it flows out of each hole and the extended longitudinal axis of each rectangular hole is canted so as not to intersect adjacent holes and so that the fan-shaped pattern formed by fluid emitted from each hole overlaps the fan-shaped pattern from adjacent holes.
Claim 10
Dependent Claim
195 words
Apparatus for effecting a selected pattern of fluid flow comprising: an inner tubular pipe having a plurality of holes therein; an outer tubular pipe concentric with the inner pipe forming an annulus between the two pipes; means for causing a first fluid to flow through the annulus between the two pipes; and means for causing a second fluid to flow from the inner pipe into the annulus through said holes in the inner pipe, wherein the holes are arranged in a pattern including a plurality of groupings of holes with each grouping comprising a plurality of holes arranged in a helix so that the flow of the second fluid creates a baffle to change the direction of flow of the first fluid; wherein each hole in the inner pipe is rectangular in the cross-section at the outer surface of the pipe to create a fan-shaped pattern in the second fluid as it flows out of each hole and the extended longitudinal axis of each rectangular hole is canted so as not to intersect adjacent holes and so that the fan-shaped pattern formed by fluid emitted from each hole overlaps the fan-shaped pattern from adjacent holes.
Claim 11
Dependent Claim
224 words
Apparatus for effecting wet oxidation comprising: a first pipe extending downward into a borehole; a second pipe extending downward into the borehole surrounding and substantially concentric with the first pipe forming a first annulus between the first and second pipes; a third pipe extending downward into the borehole surrounding and substantially concentric with the first and second pipes forming a second annulus between the second and third pipes; means for pumping process fluid down one annulus and back up the other annulus; and means for pumping oxygen down through the first pipe, wherein the first pipe has a plurality of holes arranged in a pattern such that the flow of oxygen through the holes creates a baffle for changing the direction of flow of the process fluid; wherein the pattern of the holes in the first pipe includes a plurality of groupings of holes and wherein each groping is a plurality of holes arranged in a helix; wherein each hole in the first pipe is rectangular in cross-section at the outer surface of the pipe to create a fan-shaped pattern as the oxygen flows through the holes; and wherein the extended longitudinal axis of each rectangular hole is canted so as not to intersect the adjacent holes and so that the fan-shaped pattern formed by each hole overlaps the fan-shaped patterns from adjacent holes.
Claim 12
Dependent Claim
224 words
Apparatus for effecting wet oxidation comprising: a first pipe extending downward into a borehole; a second pipe extending downward into the borehole surrounding and substantially concentric with the first pipe forming a first annulus between the first and second pipes; a third pipe extending downward into the borehole surrounding and substantially concentric with the first and second pipes forming a second annulus between the second and third pipes; means for pumping process fluid down one annulus and back up the other annulus; and means for pumping oxygen down through the first pipe, wherein the first pipe has a plurality of holes arranged in a pattern such that the flow of oxygen through the holes creates a baffle for changing the direction of flow of the process fluid; wherein the pattern of the holes in the first pipe includes a plurality of groupings of holes and wherein each groping is a plurality of holes arranged in a helix; wherein each hole in the first pipe is rectangular in cross-section at the outer surface of the pipe to create a fan-shaped pattern as the oxygen flows through the holes; and wherein the extended longitudinal axis of each rectangular hole is canted so as not to intersect the adjacent holes and so that the fan-shaped pattern formed by each hole overlaps the fan-shaped patterns from adjacent holes.
Claim 13
Dependent Claim
109 words
Apparatus for effecting a selected pattern of fluid flow comprising: an inner tubular pipe having a plurality of holes therein; an outer tubular pipe concentric with the inner pipe forming an annulus between the two pipes; means for causing a first fluid to flow through the annulus between the two pipes; means for causing a second fluid to flow from the inner pipe into the annulus through said holes in the inner pipe; and a liner of varying thickness located between the inner and outer pipes to vary the velocity and the pressure of the first fluid as the first fluid flows through the annulus between the two pipes.
Claim 14
Dependent Claim
109 words
Apparatus for effecting a selected pattern of fluid flow comprising: an inner tubular pipe having a plurality of holes therein; an outer tubular pipe concentric with the inner pipe forming an annulus between the two pipes; means for causing a first fluid to flow through the annulus between the two pipes; means for causing a second fluid to flow from the inner pipe into the annulus through said holes in the inner pipe; and a liner of varying thickness located between the inner and outer pipes to vary the velocity and the pressure of the first fluid as the first fluid flows through the annulus between the two pipes.
Claim 15
Dependent Claim
20 words
Apparatus as defined in claim 7 wherein the inner liner is secured to the inner surface of the outer pipe.
Claim 16
Dependent Claim
12 words
Apparatus as defined in claim 8 wherein the inner liner is ceramic.
Claim 17
Dependent Claim
166 words
Apparatus for effecting wet oxidation comprising: a first pipe extending downward into a borehole; a second pipe extending downward into the borehole surrounding and substantially concentric with the first pipe forming a first annulus between the first and second pipes; a third pipe extending downward into the borehole surrounding and substantially concentric with the first and second pipes forming a second annulus between the second and third pipes; means for pumping process fluid down one annulus and back up the other annulus; and means for pumping oxygen down through the first pipe, wherein the first pipe has a plurality of holes arranged in a pattern such that the flow of oxygen through the holes creates a baffle for changing the direction of flow of the process fluid; and wherein the first pipe has a section in which the holes are located which is porous to allow relatively small bubbles of oxygen to pass through the walls of the first pipe as well as through the holes.
Claim 18
Dependent Claim
166 words
Apparatus for effecting wet oxidation comprising: a first pipe extending downward into a borehole; a second pipe extending downward into the borehole surrounding and substantially concentric with the first pipe forming a first annulus between the first and second pipes; a third pipe extending downward into the borehole surrounding and substantially concentric with the first and second pipes forming a second annulus between the second and third pipes; means for pumping process fluid down one annulus and back up the other annulus; and means for pumping oxygen down through the first pipe, wherein the first pipe has a plurality of holes arranged in a pattern such that the flow of oxygen through the holes creates a baffle for changing the direction of flow of the process fluid; and wherein the first pipe has a section in which the holes are located which is porous to allow relatively small bubbles of oxygen to pass through the walls of the first pipe as well as through the holes.
Claim 19
Dependent Claim
16 words
Apparatus as defined in claim 10 wherein the porous section of the first pipe is ceramic.
Claim 20
Dependent Claim
65 words
Apparatus as defined in claim 10 wherein the porous section of the first pipe comprises: an inner pipe having a plurality of holes to allow the oxygen to pass through the inner pipe; and an outer pipe having the pattern of holes so that the flow of oxygen out of the holes creates a baffle to change the direction of flow of the process flow.
Claim 21
Dependent Claim
38 words
Apparatus as defined in claim 12 wherein the outer pipe is porous to allow relatively small bubbles of oxygen to pass through the walls of the outer pipe as well as through the holes in the outer pipe.
Claim 22
Dependent Claim
12 words
Apparatus as defined in claim 13 wherein the outer pipe is ceramic.
Claim 23
Dependent Claim
16 words
Apparatus as defined in claim 14 wherein the outer pipe comprises a plurality of ceramic sections.
Claim 24
Dependent Claim
27 words
Apparatus as defined in claim 15 further including means for biasing the ceramic sections to compensate for different thermal expansion rates between the inner and outer pipes.
References Cited (Backward Citations)
US795044A
Cited
US867382A
Cited
US1441982A
Cited
US1427202A
Cited
US1945489A
Cited
NL36850C
Cited
US3421699A
Cited
GB1251124A
Cited
US3874643A
Cited
US3984504A
Cited
US4625916A
Cited
US4522504A
Cited
US4744908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |