Patent CA2173733A1 successfully refreshed from Google Patents.
CA2173733A1
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Negative pressure vortex nozzle
Assignee: Vortexx Group Inc
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Filing: 1994-10-06
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Granted: —
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Expires: 2014-10-06
Abstract
Abstract A method and abstract of removing a surface subject to a subsurface pressure and an environmental surface pressure at least equal to the subsurface pressure which comprises jetting fluid (6) through a nozzle (3) facing and located a predetermined distance from said surface. said nozzle (3) being shaped to eject the fluid (6) in a stream having a higher core pressure than said environmental pressure, said higher pressure stream having adjacent thereto at least one zone of pressure negative relative to said subsurface pressure said distance being predetermined to expose said surface to said zone of negative pressure whereby said surface is caused to explode into said zone of negative pressure from the force of said subsurface pressure.
Inventors
- 👤 Norval Roland Dove
- 👤 Stephen Kelly Smith
- 👤 W. Gerald Lott
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-02 18:24
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/60; E21B10/61; B; B05; B05B; B05B1/00; B05B1/02; E21B7/00; E21B7/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
112 words
A method of removing a surface subject to a subsurface pressure and an environmental surface pressure at least equal to the subsurface pressure, which comprises jetting fluid through a nozzle facing and located a predetermined distance from said surface, said nozzle being shaped to eject the fluid in a steam having a higher core pressure than said environmental pressure, said higher pressure stream having adjacent thereto at least one zone of pressure negative relative to said subsurface pressure, said distance being predetermined to expose said surface to said zone of negative pressure, whereby said surface is caused to explode into said zone of negative pressure from the force of said subsurface pressure.
Claim 2
Independent Claim
112 words
A method of removing a surface subject to a subsurface pressure and an environmental surface pressure at least equal to the subsurface pressure, which comprises jetting fluid through a nozzle facing and located a predetermined distance from said surface, said nozzle being shaped to eject the fluid in a steam having a higher core pressure than said environmental pressure, said higher pressure stream having adjacent thereto at least one zone of pressure negative relative to said subsurface pressure, said distance being predetermined to expose said surface to said zone of negative pressure, whereby said surface is caused to explode into said zone of negative pressure from the force of said subsurface pressure.
Claim 3
Dependent Claim
129 words
A nozzle comprising a body having first end and second ends, said first end including means for connection to a fluid supply, said body having an inlet at said first end and an interior cavity extending from said inlet, said cavity converging to an outlet at said second end, said second end having at least one slot configuration therein included in said outlet and extending to said cavity, said cavity convergence reaching a maximum at said slot and together being effective, when fluid is forced therethrough under turbulent flow conditions into a fluid environment having a positive hydrostatic pressure, to eject said fluid as a zone of higher hydrostatic pressure than the environment hydrostatic pressure having adjacent thereto a zone of hydrostatic pressure lower than said environment hydrostatic pressure.
Claim 4
Dependent Claim
129 words
A nozzle comprising a body having first end and second ends, said first end including means for connection to a fluid supply, said body having an inlet at said first end and an interior cavity extending from said inlet, said cavity converging to an outlet at said second end, said second end having at least one slot configuration therein included in said outlet and extending to said cavity, said cavity convergence reaching a maximum at said slot and together being effective, when fluid is forced therethrough under turbulent flow conditions into a fluid environment having a positive hydrostatic pressure, to eject said fluid as a zone of higher hydrostatic pressure than the environment hydrostatic pressure having adjacent thereto a zone of hydrostatic pressure lower than said environment hydrostatic pressure.
Claim 5
Dependent Claim
17 words
The nozzle of claim 2 in which said convergence is to a longitudinal axis andis axially symmetrical.
Claim 6
Dependent Claim
17 words
The nozzle of claim 2 in which said convergence is to a longitudinal axis andis axially asymmetrical.
Claim 7
Dependent Claim
12 words
The nozzle of claim 3 in which said cavity convergence is frustoconical.
Claim 8
Dependent Claim
24 words
The nozzle of claim 4 in which the convergence is at an angle that intersectsthe axis of said outlet portion exteriorly of said outlet.
Claim 9
Dependent Claim
18 words
The nozzle of claim 2 in which said slot is plane parallel to the axis of said outlet.
Claim 10
Dependent Claim
11 words
The nozzle of claim 2 in which said slot is linear.
Claim 11
Dependent Claim
11 words
The nozzle of claim 2 in which said slot is curvilinear.
Claim 12
Dependent Claim
24 words
The nozzle of claim 2 in which said connection is into a drill bit in fluid communication with a fluid supply of drilling fluid.
Claim 13
Dependent Claim
21 words
The nozzle of claim 3 wherein said slot has at least two ends, said ends being equal distance from each other.
Claim 14
Dependent Claim
21 words
The nozzle of claim 2 wherein said slot comprises at least two ends, said ends being non-equal distance from each other.
Claim 15
Dependent Claim
94 words
A nozzle, which comprises a body having a longitudinal axis, said body defining an interior passageway along said longitudinal axis, said passageway including an inlet at a first end of the body, a frustoconical portion distal from said inlet and a slot portion distal from said inlet conterminously with said frustoconical portion, said slot said frustoconical portion converging to a minimum radius at said slot, portion transsecting said frustoconical portion plane parallel to said longitudinal axis, said frustoconical and slot portions terminating in an outlet from said passageway, said outlet including said slot portion.
Claim 16
Dependent Claim
94 words
A nozzle, which comprises a body having a longitudinal axis, said body defining an interior passageway along said longitudinal axis, said passageway including an inlet at a first end of the body, a frustoconical portion distal from said inlet and a slot portion distal from said inlet conterminously with said frustoconical portion, said slot said frustoconical portion converging to a minimum radius at said slot, portion transsecting said frustoconical portion plane parallel to said longitudinal axis, said frustoconical and slot portions terminating in an outlet from said passageway, said outlet including said slot portion.
References Cited (Backward Citations)
No citation records indexed.
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