US3646607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling fluid flow through a conduit
Assignee: Warren Automatic Tool Co
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Filing: 1969-10-24
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Granted: 1972-02-29
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Expires: 1989-10-24
Abstract
Abstract An apparatus for controlling the flow of fluid such as drilling mud through a conduit. It includes a housing arranged for fluid flow therethrough and is provided with a resilient generally tubular shaped flow controlling means, such as a rubber sleeve, mounted in the housing. The rubber sleeve is arranged for radial inward deformation to control the flow of mud therethrough. The apparatus includes means for flowing another fluid into the conduit at a point adjacent the downstream end of the rubber sleeve to reduce turbulence and cavitation to thereby extend the usable life of the apparatus and particularly the rubber sleeve.
Inventors
- 👤 Ethell J Dower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:34
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07; F16K7/075; E; E21; E21B; E21B21/00; E21B21/10; F15; F15D; F15D1/00; F15D1/02; F15D1/06; Y; Y10; Y10S; Y10S261/00; Y10S261/75
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
In apparatus for controlling the flow of a first fluid through a conduit, the combination comprising: a housing having an inlet and an outlet connected to said conduit and arranged for flow of said first fluid therethrough; a resilient generally tubular shaped flow controlling member mounted in said housing and arranged for flow of said first fluid through the bore thereof; means for deforming at least a portion of said flow controlling member radially inward to thereby control fluid flow therethrough; means for flowing a second fluid into said conduit at a point adjacent the downstream end of said flow controlling member to thereby reduce turbulence of said first fluid during passage thereof through said flow controlling member; a vessel connected to said conduit downstream from said housing and arranged to separate gas and liquid in said first fluid; and, means for flowing gas from said vessel back to said housing as said second fluid.
Claim 2
Dependent Claim
155 words
In apparatus for controlling the flow of a first fluid through a conduit, the combination comprising: a housing having an inlet and an outlet connected to said conduit and arranged for flow of said first fluid therethrough; a resilient generally tubular shaped flow controlling member mounted in said housing and arranged for flow of said first fluid through the bore thereof; means for deforming at least a portion of said flow controlling member radially inward to thereby control fluid flow therethrough; means for flowing a second fluid into said conduit at a point adjacent the downstream end of said flow controlling member to thereby reduce turbulence of said first fluid during passage thereof through said flow controlling member; a vessel connected to said conduit downstream from said housing and arranged to separate gas and liquid in said first fluid; and, means for flowing gas from said vessel back to said housing as said second fluid.
Claim 3
Dependent Claim
220 words
In apparatus for controlling the flow of a first fluid through a conduit, the combination comprising: a housing having an inlet and an outlet connected to said conduit and arranged for flow of said first fluid therethrough; a resilient generally tubular-shaped flow controlling member mounted in said housing and arranged for flow of said first fluid through the bore thereof; means for deforming at least a portion of said flow controlling member radially inward to thereby control fluid flow therethrough; means for flowing a second fluid into said conduit at a point adjacent the downstream end of said flow controlling member to thereby reduce turbulence of said first fluid during passage thereof through said flow controlling member; said means for flowing a second fluid into said conduit including a plurality of passages through a portion of said housing and communicating with said conduit downstream of the closing portion of said closure member; an annular metal insert mounted in said housing and surrounding the downstream end of said flow controlling member, said insert having an annular recess thereabout forming an annular chamber with said housing, and having a plurality of generally axially extending passageways communicating with said passages in said housing; and, means for flowing said second fluid into said annular chamber and through said passageways and passages into said conduit.
Claim 4
Dependent Claim
220 words
In apparatus for controlling the flow of a first fluid through a conduit, the combination comprising: a housing having an inlet and an outlet connected to said conduit and arranged for flow of said first fluid therethrough; a resilient generally tubular-shaped flow controlling member mounted in said housing and arranged for flow of said first fluid through the bore thereof; means for deforming at least a portion of said flow controlling member radially inward to thereby control fluid flow therethrough; means for flowing a second fluid into said conduit at a point adjacent the downstream end of said flow controlling member to thereby reduce turbulence of said first fluid during passage thereof through said flow controlling member; said means for flowing a second fluid into said conduit including a plurality of passages through a portion of said housing and communicating with said conduit downstream of the closing portion of said closure member; an annular metal insert mounted in said housing and surrounding the downstream end of said flow controlling member, said insert having an annular recess thereabout forming an annular chamber with said housing, and having a plurality of generally axially extending passageways communicating with said passages in said housing; and, means for flowing said second fluid into said annular chamber and through said passageways and passages into said conduit.
Claim 5
Dependent Claim
25 words
The invention as claimed in claim 2 including: valve means interposed between said housing and said insert for preventing reverse fluid flow through said passageways.
Claim 6
Dependent Claim
153 words
In apparatus for controlling back pressure on a first fluid being flowed through a conduit, the combination comprising: a housing having an inlet and an outlet connected to said conduit and arranged for flow of said first fluid therethrough; a resilient generally tubular shaped elastomeric flow controlling member mounted in said housing and arranged for flow of said first fluid longitudinally therepast; means for controllably and radially deforming at least a portion of said flow controlling member to thereby restrict flow of said first fluid therepast; and, means for flowing a second fluid into said conduit at a point adjacent the downstream end of said flow controlling member to thereby reduce turbulence and cavitation of said first fluid after passage thereof past said flow controlling member, said means including a plurality of passages through a portion of said housing and communicating with said conduit adjacent the downstream end of said flow controlling member.
Claim 7
Dependent Claim
153 words
In apparatus for controlling back pressure on a first fluid being flowed through a conduit, the combination comprising: a housing having an inlet and an outlet connected to said conduit and arranged for flow of said first fluid therethrough; a resilient generally tubular shaped elastomeric flow controlling member mounted in said housing and arranged for flow of said first fluid longitudinally therepast; means for controllably and radially deforming at least a portion of said flow controlling member to thereby restrict flow of said first fluid therepast; and, means for flowing a second fluid into said conduit at a point adjacent the downstream end of said flow controlling member to thereby reduce turbulence and cavitation of said first fluid after passage thereof past said flow controlling member, said means including a plurality of passages through a portion of said housing and communicating with said conduit adjacent the downstream end of said flow controlling member.
Claim 8
Dependent Claim
13 words
The invention as claimed in claim 4 wherein: said second fluid is gas.
Claim 9
Dependent Claim
19 words
The invention as claimed in claim 4 wherein: said first fluid is drilling fluid returned from a well bore.
Claim 10
Dependent Claim
20 words
The invention as claimed in claim 4 wherein: said deforming means is arranged for actuation by a pressurized third fluid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |