US6042340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radially inclined passages for increased mixing in a fluid handling device
Assignee: Individual
•
Filing: 1997-08-08
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Granted: 2000-03-28
•
Expires: 2017-08-08
Abstract
Abstract An fluid handling device (10) having an elongate tubular body which defines a through bore (20) between an inlet end (13) and an outlet end (14) of the body. The device also includes first and second annular chambers (30,38), each of which extends substantially concentrically around the bore (20), the first chamber (30) being in communication with the bore (20) via a first set of passages (48) spaced circumferentially around the bore (20), and the second chamber (38) being in communication with the bore (20) via a second set of passages (49) spaced circumferentially around the bore (20). The passages (48,49) of each set communicate with the bore (20) at a respective axial location (45,46) intermediate the ends (13,14) of the bore (20), with the location (46) for the second set (49) being between the location (45) for the first set (48) and the outlet end (14) of the housing, and each passage of each set (48,49) having an opening into the bore (20) which faces towards the outlet end (14) of the body. The device (10) also includes a first inlet port (42) by which the first chamber (30) is connectable to a source of pressurized fluid, and a second inlet port (44) by which the second chamber (38) is connectable to a source of pressurized fluid. The passages (48,49) of each set are inclined radially towards the axis A of the bore (20) along respective lines such that the lines for passages of the first set (48) converge along the bore (20) to a first region X towards, at or beyond the outlet end (14), and the lines for passages of the second set (49) converge to a second region Y beyond the first region X.
Inventors
- 👤 John Stanley Melbourne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:22
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/467; B; B01; B01F; B01F25/00; B01F25/60
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
286 words
A fluid handling device, the device having: an elongate tubular body which defines a through bore between an inlet end and an outlet end of the body; first and second annular chambers, each of which extends substantially concentrically around the bore, the first chamber being in communication with the bore via a first set of passages spaced circumferentially around the bore, and the second chamber being in communication with the bore via a second set of passages spaced circumferentially around the bore, the passages of each set communicating with the bore at a respective axial location intermediate the ends of the bore, with the location for the second set between the location for the first set and the outlet end of the housing, and each passage of each set having an opening into the bore which faces towards the outlet end of the body; a first inlet port by which the first chamber is connectable to a source of pressurised fluid; and a second inlet port by which the second chamber is connectable to a source of pressurised fluid; wherein the passages of each set are both: (i) inclined radially towards the axis of the bore, and (ii) inclined transversely with respect to the axis of the bore, along respective lines whereby the lines for passages of the first set converge along the bore towards the outlet end to a first region, and the lines for passages of the second set converge to a second region beyond the first region. and wherein the passages of the second set are inclined transversely with respect to the axis of the bore in the opposite direction to the direction of transverse inclination of the passages of the first set.
Claim 2
Dependent Claim
286 words
A fluid handling device, the device having: an elongate tubular body which defines a through bore between an inlet end and an outlet end of the body; first and second annular chambers, each of which extends substantially concentrically around the bore, the first chamber being in communication with the bore via a first set of passages spaced circumferentially around the bore, and the second chamber being in communication with the bore via a second set of passages spaced circumferentially around the bore, the passages of each set communicating with the bore at a respective axial location intermediate the ends of the bore, with the location for the second set between the location for the first set and the outlet end of the housing, and each passage of each set having an opening into the bore which faces towards the outlet end of the body; a first inlet port by which the first chamber is connectable to a source of pressurised fluid; and a second inlet port by which the second chamber is connectable to a source of pressurised fluid; wherein the passages of each set are both: (i) inclined radially towards the axis of the bore, and (ii) inclined transversely with respect to the axis of the bore, along respective lines whereby the lines for passages of the first set converge along the bore towards the outlet end to a first region, and the lines for passages of the second set converge to a second region beyond the first region. and wherein the passages of the second set are inclined transversely with respect to the axis of the bore in the opposite direction to the direction of transverse inclination of the passages of the first set.
Claim 3
Dependent Claim
135 words
A fluid handling device according to claim 1, including a third annular chamber which extends substantially concentrically around the bore and is in communication with the bore via a third set of passages spaced circumferentially around the bore at an axial location between the axial location for the second set and the outlet end of the bore, wherein the passages of the third set are both: (i) inclined radially towards the axis of the bore, and (ii) inclined transversely with respect to the axis of the bore, along respective lines which converge along the bore to a third region beyond the second region and wherein the transverse inclination of the passages of the third set with respect to the axis of the bore is in the same direction as the passages of the first set.
Claim 4
Dependent Claim
25 words
A fluid handling device according to claim 2 including a third port by which the third chamber is connectable to a source of pressurised fluid.
Claim 5
Dependent Claim
36 words
A fluid handling device according to claim 2, wherein the axial locations of the second and third sets of passages are longitudinally spaced by a conduit which provides a continuation of the bore between the locations.
Claim 6
Dependent Claim
18 words
A fluid handling device according to claim 1 wherein the angle of transverse inclination is up to 12°.
Claim 7
Dependent Claim
23 words
A fluid handling device according to claim 5 wherein the angle of transverse inclination is in the range of from 2° to 7°.
Claim 8
Dependent Claim
36 words
A fluid handling device according to claim 1, wherein the axial locations of the first and second sets of passages are longitudinally spaced by a conduit which provides a continuation of the bore between the locations.
Claim 9
Dependent Claim
23 words
A fluid handling device according to claim 7 wherein the longitudinal spacing is up to about seven times the diameter of the bore.
Claim 10
Dependent Claim
27 words
A fluid handling device according to claim 8 wherein the longitudinal spacing is in the range of from 2 to 5 times the diameter of the bore.
Claim 11
Dependent Claim
24 words
A fluid handling device according to claim 1 wherein the first and second inlet ports are connectable to a respective source of pressurised fluid.
Claim 12
Dependent Claim
33 words
A fluid handling device according to claim 1 wherein the first and second inlet ports are interconnected by a conduit to enable each to be connectable to a common source of pressurisable fluid.
Claim 13
Dependent Claim
30 words
A fluid handling device according to claim 1 wherein the pressure of fluid discharge from the second chamber is greater than the pressure of fluid discharge from the first chamber.
Claim 14
Dependent Claim
21 words
A fluid handling device according to claim 1 wherein the inclination of passages towards the bore axis is up to 25°.
Claim 15
Dependent Claim
26 words
A fluid handling device according to claim 13 wherein the inclination of passages towards the bore axis is in the range of from 13° to 17°.
Claim 16
Dependent Claim
307 words
A fluid handling device, the device having: an elongate tubular body which defines a through bore between an inlet end and an outlet end of the body; first and second annular chambers, each of which extends substantially concentrically around the bore, the first chamber being in communication with the bore via a first set of passages spaced circumferentially around the bore, and the second chamber being in communication with the bore via a second set of passages spaced circumferentially around the bore, the passages of each set communicating with the bore at a respective axial location intermediate the ends of the bore, with the location for the second set between the location for the first set and the outlet end of the housing, and each passage of each set having an opening into the bore which faces towards the outlet end of the body; a first inlet port by which the first chamber is connectable to a source of pressurised fluid; and a second inlet port by which the second chamber is connectable to a source of pressurised fluid; wherein the passages of each set are inclined radially towards the axis of the bore along respective lines such that the lines for passages of the first set converge along the bore to a first region towards, at or beyond the outlet end, and the lines for passages of the second set converge to a second region beyond the first region; the first set of passages is inclined transversely with respect to the axis of the bore, and the second set of passages is also inclined transversely with respect to the axis of the bore, but in the opposite direction; and the axial locations of the first and second sets of passages are longitudinally spaced by a conduit which provides a continuation of the bore between the locations.
Claim 17
Dependent Claim
307 words
A fluid handling device, the device having: an elongate tubular body which defines a through bore between an inlet end and an outlet end of the body; first and second annular chambers, each of which extends substantially concentrically around the bore, the first chamber being in communication with the bore via a first set of passages spaced circumferentially around the bore, and the second chamber being in communication with the bore via a second set of passages spaced circumferentially around the bore, the passages of each set communicating with the bore at a respective axial location intermediate the ends of the bore, with the location for the second set between the location for the first set and the outlet end of the housing, and each passage of each set having an opening into the bore which faces towards the outlet end of the body; a first inlet port by which the first chamber is connectable to a source of pressurised fluid; and a second inlet port by which the second chamber is connectable to a source of pressurised fluid; wherein the passages of each set are inclined radially towards the axis of the bore along respective lines such that the lines for passages of the first set converge along the bore to a first region towards, at or beyond the outlet end, and the lines for passages of the second set converge to a second region beyond the first region; the first set of passages is inclined transversely with respect to the axis of the bore, and the second set of passages is also inclined transversely with respect to the axis of the bore, but in the opposite direction; and the axial locations of the first and second sets of passages are longitudinally spaced by a conduit which provides a continuation of the bore between the locations.
References Cited (Backward Citations)
FR545629A
Cited
US2444615A
Cited
US2968164A
Cited
US3979061A
Cited
US4004732A
Cited
US3964682A
Cited
DE2541439A1
Cited
CH615484A5
Cited
US4105161A
Cited
US4101073A
Cited
NZ201884A
Cited
US4488407A
Cited
SU1317249A1
Cited
EP0178873A1
Cited
JPS61275599A
Cited
US4634050A
Cited
US4647212A
Cited
AU3727989A
Cited
US5173030A
Cited
AU5781990A
Cited
AU7601191A
Cited
NZ239668A
Cited
US5322218A
Cited
DE9420791U1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-03-28 | 2003-09-27 | 2004-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-28 | 2007-09-27 | 2008-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-28 | 2011-09-27 | 2012-03-28 | $7700.00 | Window Closed / Lapsed |