US20020038952A1 - Beveled insert for coupling pipes - Google Patents
Beveled insert for coupling pipes Download PDFInfo
- Publication number
- US20020038952A1 US20020038952A1 US09/994,139 US99413901A US2002038952A1 US 20020038952 A1 US20020038952 A1 US 20020038952A1 US 99413901 A US99413901 A US 99413901A US 2002038952 A1 US2002038952 A1 US 2002038952A1
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- US
- United States
- Prior art keywords
- beveled
- insert
- pipe
- collar portion
- pipe segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
Definitions
- This invention relates to construction materials.
- the present invention relates to pipe couplings.
- the instant invention concerns devices for facilitating the coupling of pipes.
- Pipes have long been used for the delivery of various fluids, and the methods used for their installation are well-established. While the following invention can apply to many types of pipe for the delivery of many types of fluid, the following discussion will be focused upon liquid delivery, namely water pipes.
- water mains employ a type of pipe known as ductile iron.
- Lengths of pipe are coupled by inserting the end of one pipe into a belled end of an adjacent pipe. Using uncut lengths of pipe, this system works quite efficiently.
- problems develop when a length of pipe must be shortened by cutting. The cut end of the pipe has a relatively sharp edge which when inserted into the belled end of the adjacent pipe may damage the gasket located therein. This is typically referred to as “fish mouthing”, and results in leakage at the joint.
- Another object of the invention is to provide a beveled insert, which permits insertion of a pipe end without damaging a sealing gasket.
- Another object of the invention is to provide a device for facilitating the insertion of an end of a pipe into an adjacent pipe or fitting.
- a beveled insert including a collar portion having an insert end and a beveled portion having a bevel end.
- the collar portion is receivable within a pipe end, and carries the beveled portion such that the insert end and the bevel end form opposing ends of the beveled insert.
- a shoulder is defined intermediate the insert end and the bevel end for abutting engagement with the pipe end.
- a pipe joint including a first pipe segment having a belled end and an annular gasket carried within the belled end.
- a second pipe segment has an end inserted into the belled end, passing through the annular gasket.
- a beveled insert is carried by the end of the second pipe segment for facilitating the insertion of the end of the second pipe segment into the belled end of the first pipe segment passing through the annular gasket.
- FIG. 1 is a perspective exploded view of a beveled insert according to the present invention, as it would appear at a pipe coupling;
- FIG. 2 is a perspective view of a beveled insert according to the present invention.
- FIG. 3 is a plan view of the beveled insert carried by a cut pipe end
- FIG. 4 is a partial sectional view of the beveled insert taken along the lines 4 - 4 of FIG. 1;
- FIG. 5 is exploded view of another embodiment of a beveled insert
- FIG. 6 is a sectional view taken along lying 6 - 6 of FIG. 5;
- FIG. 7 is a side view illustrating a pipe coupling according to the present invention.
- FIG. 1 illustrates a beveled insert generally designated 10 as it would appear in relation to a pipe joint.
- beveled insert 10 is intended to facilitate the insertion of a pipe end into a receiving pipe end or pipe fitting. It will be understood by those skilled in the art that the beveled insert can be used to couple a pipe to another pipe or to a pipe fitting.
- the term “pipe” as used in the following description and claims is intended to include both a pipe and a pipe fitting.
- the pipe may be constructed of virtually any material, and may be employed to carry substantially any material.
- the pipe to be joined is preferably of the type referred to as ductile iron, and used primarily for water mains. It will also be understood that the present invention may be employed with substantially any diameter pipe.
- a pipe segment 12 having a belled end 14 receives a cut end 15 of a pipe segment 16 .
- Belled end 14 is of conventional manufacture and includes an annular gasket 18 carried therein.
- the term “belled” is used here to describe any pipe end which acts as a female fitting and is configured to receive another pipe end, and is intended to include pipes having an overall larger diameter than the inserted pipe.
- a portion of a pipe segment must be removed by cutting, resulting in cut end 15 .
- annular gasket 18 Conventionally, when inserting cut end 15 into belled end 14 damage will occur to annular gasket 18 .
- beveled insert 10 is carried by cut end 15 .
- pipe 16 can be inserted into belled end 14 through annular gasket 18 without any damage occurring thereto.
- beveled insert 10 is substantially annular in shape, and includes an insertable end 20 and a bevel end 22 .
- Beveled insert 10 consists of a collar portion 23 at insertable end 20 and a beveled portion 24 at bevel end 22 .
- Collar portion 23 has an outer diameter configured to be received within cut end 15 of pipe segment 16 and an inner diameter.
- Beveled portion 24 has an outer diameter substantially similar to the outer diameter of cut end 15 of pipe segment 16 proximate insertable end 20 , and sloping to a lesser diameter at bevel end 22 .
- the slope of the bevel may be of any pitch so as to efficiently pass annular gasket 18 .
- the outer diameter of beveled portion 24 proximate bevel end 22 is less than the outer diameter of beveled portion 24 proximate insertable end 20 and greater than or equal to the inner diameter of collar portion 23 .
- Beveled portion 24 is preferably shallow so as to terminate with a blunt end at bevel end 22 .
- a shoulder 25 is defined intermediate insertable end 20 and bevel end 22 by the different outer diameters of outer collar portion 23 and beveled portion 24 .
- Shoulder 25 has a depth approximately the same as the thickness of pipe segment 16 at cut end 15 .
- Beveled insert 10 is coupled to cut end 15 of pipe segment 16 by inserting collar portion 23 within pipe segment 16 with cut end 15 abutting shoulder 25 . In this manner the sharp edges of cut end 15 are masked during insertion of pipe segment 16 into belled end 14 of pipe segment 12 .
- annular gasket 18 remains undamaged and will effectively engage and seal to pipe segment 16 as beveled insert 10 passes completely through annular gasket 18 .
- beveled insert 10 is preferably constructed of plastic materials such as PVC molded in an integral piece. However, as will be understood by those skilled in the art, other materials such as metal, resins, composites, etc. may be employed. A specific example of another material is a dissolvable material such as sugar.
- beveled insert 10 is no longer required. When liquid flow is supplied to the pipe, beveled insert 10 will dissolve, completely removing any impediment to the liquid flow. In water mains, for example, after installation of the pipe, the pipes are flushed out with a flow of water over a period of time. This flushing process is adequate to dissolve and remove a beveled insert formed of sugar.
- Other materials contemplated are chlorine, salt, etc.
- Beveled insert 40 is substantially annular in shape, and includes an insertable end 42 and a bevel end 43 .
- Beveled insert 40 consists of a collar portion 44 extending from insertable end 42 to a radially outwardly extending flange 45 at bevel end 43 .
- a beveled portion 46 is received about collar portion 44 and carried at bevel end 43 , abutting flange 45 .
- Collar portion 44 has an outer diameter configured to be received within a cut end 47 of a pipe segment 48 and an inner diameter as large as is structurally sound according to the material use.
- collar portion 44 is as thin as possible, to reduce as much as possible any obstruction to the flow of materials through the pipe.
- beveled portion 45 has an annular shape and is preferably constructed of a plastic material such as PVC.
- Beveled portion 45 has an inner diameter substantially identical to the inner diameter of pipe segment 48 and an outer diameter substantially similar to the outer diameter of cut end 47 of pipe segment 48 , proximate insertable end 42 , and sloping to a lesser diameter at bevel end 43 .
- the slope of the bevel may be of any pitch so as to efficiently passed an annular gasket.
- Beveled portion 45 is inserted over insertable end 42 of collar portion 44 and position abutting flange 45 to form bevel end 43 .
- Flange 45 has a diameter preferably equal to or less than the outer diameter of beveled portion 45 proximate bevel end 43 .
- collar portion 44 is severed longitudinally, forming a gap 50 therein. This permits the contraction or expansion of collar portion 44 , allowing for its use in a plurality of different diameter pipes.
- Collar portion 44 is preferably formed of a strong, resilient material, such as metal, and is also preferably non-corrosive. These characteristics are met by stainless steel, which is the preferred material.
- beveled insert 40 can be employed with different size pipes simply by replacing an appropriately sized beveled portion 45 on collar portion 44 . It will be understood by those skilled in the art that collar portion 44 can be formed of a continuous unbroken ring which would then be limited to a single size pipe.
- beveled insert 40 is inserted into cut end 47 of pipe segment 48 such that beveled portion 46 masks cut end 47 .
- Cut end 47 is inserted into a belled end 52 of a pipe segment 54 .
- the belled end 52 includes an annular gasket 56 to provide sealing engagement with pipe segment 48 .
- a shoulder 58 is formed on the inner surface of pipe segment 54 at the base of belled end 52 , against which cut end 47 of pipe segment 48 is seated.
- beveled portion 46 need not be affixed to collar portion 44 .
- beveled insert 40 need not be permanently affixed to cut end 47 of pipe segment 48 since it is captured between cut end 47 and shoulder 58 of pipe segment 54 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
- This invention relates to construction materials.
- More particularly, the present invention relates to pipe couplings.
- In a further and more specific aspect, the instant invention concerns devices for facilitating the coupling of pipes.
- Pipes have long been used for the delivery of various fluids, and the methods used for their installation are well-established. While the following invention can apply to many types of pipe for the delivery of many types of fluid, the following discussion will be focused upon liquid delivery, namely water pipes. Typically, water mains employ a type of pipe known as ductile iron. Lengths of pipe are coupled by inserting the end of one pipe into a belled end of an adjacent pipe. Using uncut lengths of pipe, this system works quite efficiently. However, problems develop when a length of pipe must be shortened by cutting. The cut end of the pipe has a relatively sharp edge which when inserted into the belled end of the adjacent pipe may damage the gasket located therein. This is typically referred to as “fish mouthing”, and results in leakage at the joint.
- Conventionally, this problem is overcome by cutting a bevel into the cut pipe end. This, however, creates more problems. Specifically, forming a bevel in ductile iron pipe is extremely difficult. Currently, the bevel is formed using the cut-off saw previously used to cut the pipe to the desired length. The saw used is cumbersome and heavy, has a blade turning at approximately 5600 rpms, and is therefore dangerous and imprecise. Furthermore, the blade manufacturers specifically prohibit this use of the blade, because the stresses are uneven and shattering of the blade tends to occur. As well as being dangerous, forming a bevel in this manner is expensive due to the time in labor and increased number of blades used.
- It would be highly advantageous, therefore, to remedy the foregoing and other deficiencies inherent in the prior art.
- Accordingly, it is an object of the present invention to provide a new and improved method and apparatus for coupling pipes.
- Another object of the invention is to provide a beveled insert, which permits insertion of a pipe end without damaging a sealing gasket.
- And another object of the invention is to provide a device for facilitating the insertion of an end of a pipe into an adjacent pipe or fitting.
- Briefly, to achieve the desired objects of the instant invention in accordance with a preferred embodiment thereof, provided is a beveled insert including a collar portion having an insert end and a beveled portion having a bevel end. The collar portion is receivable within a pipe end, and carries the beveled portion such that the insert end and the bevel end form opposing ends of the beveled insert. A shoulder is defined intermediate the insert end and the bevel end for abutting engagement with the pipe end.
- In a more specific embodiment, provided is a pipe joint including a first pipe segment having a belled end and an annular gasket carried within the belled end. A second pipe segment has an end inserted into the belled end, passing through the annular gasket. A beveled insert is carried by the end of the second pipe segment for facilitating the insertion of the end of the second pipe segment into the belled end of the first pipe segment passing through the annular gasket.
- Further provided is a method of joining pipe segments employing the beveled insert of the present invention.
- The foregoing and further and more specific objects and advantages of the instant invention will become readily apparent to those skilled in the art from the following detailed description of a preferred embodiment thereof taken in conjunction with the drawings, in which:
- FIG. 1 is a perspective exploded view of a beveled insert according to the present invention, as it would appear at a pipe coupling;
- FIG. 2 is a perspective view of a beveled insert according to the present invention;
- FIG. 3 is a plan view of the beveled insert carried by a cut pipe end;
- FIG. 4 is a partial sectional view of the beveled insert taken along the lines4-4 of FIG. 1;
- FIG. 5 is exploded view of another embodiment of a beveled insert;
- FIG. 6 is a sectional view taken along lying6-6 of FIG. 5; and
- FIG. 7 is a side view illustrating a pipe coupling according to the present invention.
- Turning now to the drawings in which like reference characters indicate corresponding elements throughout the several views, attention is first directed to FIG. 1 which illustrates a beveled insert generally designated10 as it would appear in relation to a pipe joint. As will be appreciated by those skilled in the art,
beveled insert 10 is intended to facilitate the insertion of a pipe end into a receiving pipe end or pipe fitting. It will be understood by those skilled in the art that the beveled insert can be used to couple a pipe to another pipe or to a pipe fitting. The term “pipe” as used in the following description and claims is intended to include both a pipe and a pipe fitting. Thus, the pipe may be constructed of virtually any material, and may be employed to carry substantially any material. For the purposes of the present description however, the pipe to be joined is preferably of the type referred to as ductile iron, and used primarily for water mains. It will also be understood that the present invention may be employed with substantially any diameter pipe. - Still referring to FIG. 1, a
pipe segment 12 having a belledend 14 receives acut end 15 of apipe segment 16. Belledend 14 is of conventional manufacture and includes anannular gasket 18 carried therein. It should be pointed out that the term “belled” is used here to describe any pipe end which acts as a female fitting and is configured to receive another pipe end, and is intended to include pipes having an overall larger diameter than the inserted pipe. When a non-uniform length of pipe is required, a portion of a pipe segment must be removed by cutting, resulting incut end 15. Conventionally, when insertingcut end 15 into belledend 14 damage will occur toannular gasket 18. To prevent damage toannular gasket 18 by cutend 15, often referred to as “fish mouthing”, beveledinsert 10 is carried by cutend 15. By masking the sharp edges of cutend 15 withbeveled insert 10,pipe 16 can be inserted into belledend 14 throughannular gasket 18 without any damage occurring thereto. - Turning now to FIG. 2, beveled
insert 10 is substantially annular in shape, and includes aninsertable end 20 and abevel end 22.Beveled insert 10 consists of acollar portion 23 atinsertable end 20 and abeveled portion 24 atbevel end 22.Collar portion 23 has an outer diameter configured to be received withincut end 15 ofpipe segment 16 and an inner diameter.Beveled portion 24 has an outer diameter substantially similar to the outer diameter ofcut end 15 ofpipe segment 16 proximateinsertable end 20, and sloping to a lesser diameter atbevel end 22. The slope of the bevel may be of any pitch so as to efficiently passannular gasket 18. The outer diameter ofbeveled portion 24proximate bevel end 22 is less than the outer diameter ofbeveled portion 24 proximateinsertable end 20 and greater than or equal to the inner diameter ofcollar portion 23.Beveled portion 24 is preferably shallow so as to terminate with a blunt end atbevel end 22. - Still referring to FIG. 2 with additional reference to FIGS. 3 and 4, a
shoulder 25 is defined intermediateinsertable end 20 andbevel end 22 by the different outer diameters ofouter collar portion 23 and beveledportion 24.Shoulder 25 has a depth approximately the same as the thickness ofpipe segment 16 at cutend 15.Beveled insert 10 is coupled to cutend 15 ofpipe segment 16 by insertingcollar portion 23 withinpipe segment 16 withcut end 15 abuttingshoulder 25. In this manner the sharp edges ofcut end 15 are masked during insertion ofpipe segment 16 into belledend 14 ofpipe segment 12. Thus,annular gasket 18 remains undamaged and will effectively engage and seal topipe segment 16 asbeveled insert 10 passes completely throughannular gasket 18. - In the previous embodiment, beveled
insert 10 is preferably constructed of plastic materials such as PVC molded in an integral piece. However, as will be understood by those skilled in the art, other materials such as metal, resins, composites, etc. may be employed. A specific example of another material is a dissolvable material such as sugar. Once insertion of the cut end of a pipe segment through an annular gasket is achieved, beveledinsert 10 is no longer required. When liquid flow is supplied to the pipe, beveledinsert 10 will dissolve, completely removing any impediment to the liquid flow. In water mains, for example, after installation of the pipe, the pipes are flushed out with a flow of water over a period of time. This flushing process is adequate to dissolve and remove a beveled insert formed of sugar. Other materials contemplated are chlorine, salt, etc. - Referring now to FIG. 5, another embodiment of a beveled insert generally designated40 is illustrated.
Beveled insert 40 is substantially annular in shape, and includes aninsertable end 42 and abevel end 43.Beveled insert 40 consists of acollar portion 44 extending frominsertable end 42 to a radially outwardly extendingflange 45 atbevel end 43. Abeveled portion 46 is received aboutcollar portion 44 and carried atbevel end 43, abuttingflange 45.Collar portion 44 has an outer diameter configured to be received within acut end 47 of apipe segment 48 and an inner diameter as large as is structurally sound according to the material use. Thus,collar portion 44 is as thin as possible, to reduce as much as possible any obstruction to the flow of materials through the pipe. - Turning now to FIG. 6, beveled
portion 45 has an annular shape and is preferably constructed of a plastic material such as PVC. Beveledportion 45 has an inner diameter substantially identical to the inner diameter ofpipe segment 48 and an outer diameter substantially similar to the outer diameter ofcut end 47 ofpipe segment 48, proximateinsertable end 42, and sloping to a lesser diameter atbevel end 43. The slope of the bevel may be of any pitch so as to efficiently passed an annular gasket. Beveledportion 45 is inserted overinsertable end 42 ofcollar portion 44 andposition abutting flange 45 to formbevel end 43.Flange 45 has a diameter preferably equal to or less than the outer diameter ofbeveled portion 45proximate bevel end 43. - Still referring to FIG. 6 with reference back to FIG. 5,
collar portion 44 is severed longitudinally, forming agap 50 therein. This permits the contraction or expansion ofcollar portion 44, allowing for its use in a plurality of different diameter pipes.Collar portion 44 is preferably formed of a strong, resilient material, such as metal, and is also preferably non-corrosive. These characteristics are met by stainless steel, which is the preferred material. Thus, beveledinsert 40 can be employed with different size pipes simply by replacing an appropriately sizedbeveled portion 45 oncollar portion 44. It will be understood by those skilled in the art thatcollar portion 44 can be formed of a continuous unbroken ring which would then be limited to a single size pipe. - Turning now to FIG. 7 beveled
insert 40 is inserted into cutend 47 ofpipe segment 48 such thatbeveled portion 46 masks cutend 47. Cutend 47 is inserted into abelled end 52 of apipe segment 54. Thebelled end 52 includes anannular gasket 56 to provide sealing engagement withpipe segment 48. Ashoulder 58 is formed on the inner surface ofpipe segment 54 at the base ofbelled end 52, against which cutend 47 ofpipe segment 48 is seated. Thus, beveledportion 46 need not be affixed tocollar portion 44. Furthermore, beveledinsert 40 need not be permanently affixed to cutend 47 ofpipe segment 48 since it is captured betweencut end 47 andshoulder 58 ofpipe segment 54. - Various changes and modifications to the embodiments herein chosen for purposes of illustration will readily occur to those skilled in the art. To the extent that such modifications and variations do not depart from the spirit of the invention, they are intended to be included within the scope thereof which is assessed only by a fair interpretation of the following claims.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/994,139 US6454310B1 (en) | 1999-06-16 | 2001-11-26 | Beveled insert for coupling pipes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/335,006 US6371522B1 (en) | 1999-06-16 | 1999-06-16 | Beveled insert for coupling pipes |
US09/994,139 US6454310B1 (en) | 1999-06-16 | 2001-11-26 | Beveled insert for coupling pipes |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/335,006 Division US6371522B1 (en) | 1999-06-16 | 1999-06-16 | Beveled insert for coupling pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020038952A1 true US20020038952A1 (en) | 2002-04-04 |
US6454310B1 US6454310B1 (en) | 2002-09-24 |
Family
ID=23309836
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/335,006 Expired - Fee Related US6371522B1 (en) | 1999-06-16 | 1999-06-16 | Beveled insert for coupling pipes |
US09/994,139 Expired - Lifetime US6454310B1 (en) | 1999-06-16 | 2001-11-26 | Beveled insert for coupling pipes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/335,006 Expired - Fee Related US6371522B1 (en) | 1999-06-16 | 1999-06-16 | Beveled insert for coupling pipes |
Country Status (3)
Country | Link |
---|---|
US (2) | US6371522B1 (en) |
AU (1) | AU5469800A (en) |
WO (1) | WO2000077437A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1025979C2 (en) * | 2004-04-19 | 2005-10-20 | Wavin Bv | Pipe part provided with a beveled key end part. |
US20090205265A1 (en) * | 2008-02-19 | 2009-08-20 | Pulver Timothy W | Spin Hardware for structural frame members |
EP2206942A1 (en) | 2009-01-12 | 2010-07-14 | Wavin B.V. | Pipe part provided with a spigot end part |
US8584428B2 (en) | 2008-02-19 | 2013-11-19 | Timothy Pulver | Spin hardware for structural frame members |
WO2014186770A1 (en) * | 2013-05-16 | 2014-11-20 | Infra-Tect, Llc | Beveled insert for facilitating coupling pipes |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6773041B1 (en) * | 2001-06-14 | 2004-08-10 | Patrick Wolff | Beveled attachment for coupling pipes |
US7182372B2 (en) * | 2002-08-08 | 2007-02-27 | Patrick Wolff | Beveled insert for facilitating coupling pipes |
IL177035A (en) * | 2006-07-23 | 2010-11-30 | Sagiv Agudah Shitufit Chaklait Be Am | Pipe fitting assembly and a method for forming it |
BRPI0911105B1 (en) | 2008-04-18 | 2022-11-08 | Reata Pharmaceuticals, Inc | COMPOUNDS CONTAINING AN ANTI-INFLAMMATORY PHARMACOPHORE, PHARMACEUTICAL COMPOSITION, AS WELL AS THEIR USES |
US8282138B2 (en) | 2008-12-18 | 2012-10-09 | Rostra Tool Company | Crimp ring |
Family Cites Families (13)
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US1188485A (en) * | 1910-09-03 | 1916-06-27 | Underpinning & Foundation Company | Tube joint and guide. |
US1665812A (en) * | 1922-10-28 | 1928-04-10 | John J Jones | Hose or pipe coupling |
DE481850C (en) * | 1925-07-17 | 1929-09-09 | Mannesmann Ag | Internal socket connection |
US2017362A (en) * | 1933-04-12 | 1935-10-15 | Edmund Rogers | Hose coupling |
US2591531A (en) * | 1948-07-26 | 1952-04-01 | Edward W Fishback | Pipe coupling |
US3056616A (en) * | 1959-04-06 | 1962-10-02 | Stanley F Jaros | Reducer pipe joint |
US3345085A (en) * | 1965-02-08 | 1967-10-03 | Huntsinger Associates | Automatically alignable and connectible tool joint |
US3429596A (en) * | 1966-08-15 | 1969-02-25 | D & G Plastic Co | Quick-connect coupling assembly |
FI55906C (en) * | 1968-09-19 | 1979-10-10 | Aga Ab | SKARVDON FOER FOERBINDNING AV PAO UTSIDAN SLAETA ROER |
US3831954A (en) * | 1972-11-24 | 1974-08-27 | Cretex Co Inc | Gasket joint connections |
CA1135747A (en) * | 1981-02-05 | 1982-11-16 | James J. Bourassa | Contraction joint |
US4907828A (en) * | 1988-02-16 | 1990-03-13 | Western Atlas International, Inc. | Alignable, threaded, sealed connection |
US5735553A (en) * | 1996-03-08 | 1998-04-07 | Niemiec; Albin J. | Flared tube fitting for connecting flow conductors |
-
1999
- 1999-06-16 US US09/335,006 patent/US6371522B1/en not_active Expired - Fee Related
-
2000
- 2000-06-07 WO PCT/US2000/015664 patent/WO2000077437A1/en active Application Filing
- 2000-06-07 AU AU54698/00A patent/AU5469800A/en not_active Abandoned
-
2001
- 2001-11-26 US US09/994,139 patent/US6454310B1/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1025979C2 (en) * | 2004-04-19 | 2005-10-20 | Wavin Bv | Pipe part provided with a beveled key end part. |
EP1589272A1 (en) * | 2004-04-19 | 2005-10-26 | Wavin B.V. | Pipe part provided with a chamfered spigot end part |
US20090205265A1 (en) * | 2008-02-19 | 2009-08-20 | Pulver Timothy W | Spin Hardware for structural frame members |
US8122678B2 (en) * | 2008-02-19 | 2012-02-28 | Timothy William Pulver | Spin hardware for structural frame members |
US8584428B2 (en) | 2008-02-19 | 2013-11-19 | Timothy Pulver | Spin hardware for structural frame members |
EP2206942A1 (en) | 2009-01-12 | 2010-07-14 | Wavin B.V. | Pipe part provided with a spigot end part |
WO2010079231A1 (en) | 2009-01-12 | 2010-07-15 | Wavin B.V. | Pipe part provided with a spigot end part |
JP2012515299A (en) * | 2009-01-12 | 2012-07-05 | ウェイヴィン ビー.ヴィ. | Pipe parts with spigot ends |
JP2015108450A (en) * | 2009-01-12 | 2015-06-11 | ウェイヴィン ビー.ヴィ. | Pipe part provided with spigot end part |
WO2014186770A1 (en) * | 2013-05-16 | 2014-11-20 | Infra-Tect, Llc | Beveled insert for facilitating coupling pipes |
Also Published As
Publication number | Publication date |
---|---|
AU5469800A (en) | 2001-01-02 |
US6371522B1 (en) | 2002-04-16 |
WO2000077437A1 (en) | 2000-12-21 |
US6454310B1 (en) | 2002-09-24 |
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