CA1143407A - Pipe connection for plastic pipes - Google Patents
Pipe connection for plastic pipesInfo
- Publication number
- CA1143407A CA1143407A CA000349508A CA349508A CA1143407A CA 1143407 A CA1143407 A CA 1143407A CA 000349508 A CA000349508 A CA 000349508A CA 349508 A CA349508 A CA 349508A CA 1143407 A CA1143407 A CA 1143407A
- Authority
- CA
- Canada
- Prior art keywords
- pipe
- shells
- sleeve
- internal
- plastic pipes
- 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.)
- Expired
Links
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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Joints With Sleeves (AREA)
Abstract
PIPE CONNECTION FOR PLASTIC PIPES
ABSTRACT
A pipe connector for plastic pipes has a connecting sleeve flanged at one end and, near the other end, an internal abutment for the pipe end. An O-ring is located in a groove in the sleeve and sur-rounds the pipe. Two semi-cylindrical shells having an internal radius equal to the pipe's external radius have an internally grooved flange at one end adapted to straddle the sleeve flange. The shells have teeth-like ridges and are tightly held together so that the ridges bite into the pipe wall.
ABSTRACT
A pipe connector for plastic pipes has a connecting sleeve flanged at one end and, near the other end, an internal abutment for the pipe end. An O-ring is located in a groove in the sleeve and sur-rounds the pipe. Two semi-cylindrical shells having an internal radius equal to the pipe's external radius have an internally grooved flange at one end adapted to straddle the sleeve flange. The shells have teeth-like ridges and are tightly held together so that the ridges bite into the pipe wall.
Description
3~
The present invention concerns a pipe connector for connecting plastic pipes to each other~ to any outlet or to other connectors.
The problem of connect~ng plastic pipes is different from that of connecting metal pipes since the plastic material may deform with concomitant change in flow conditions, if the pressure of the connector is too great. Therefore, the connectors used up to now provide an annular member having an internal screw-thread of teeth which, when said member ls screwed onto the pipe, bite into its wall to effect a tight connection.
The main drawback of this connector lies in the fact that the annular member is expensive to produce, i.e. the internal screw-thread requires an expensive mold and during molding deformations may occur which will prevent a liquid-tight connection. A further disadvantage in these connectors is that they cannot be applied to pipes of large diameter.
It is the object of the present invention to provide a pipe connector for plastic pipes which overcomes the above-mentioned drawback and which can easily be con-structed for and applied to pipes of any diameter.
An aspect of the invention is as follows:
A pipe connector for plastic pipes comprising a connecting sleeve flanged at one end and having near the other end an internal abutment for the pipe end, an O ring housed in an annular groove of said sleeve at said one end surrounding the pipe, characterlzed in that there are provided two semi cylindrical shells of an internal radius equal to the external radius of the pipe and having an internally grooved flange at one end adapted to straddle ~&
-la-the said flange of said sleeve, said shells having a number of internal ridges of tooth-like pro:Eile and means to tightly hold said shells together so that said toothed ridges bite into the wall oE the pipe end, said sleeve being adapted for fluid connection to a pipe coupling system~
~3~
~ 2 -In a preferred embodiment of the invention the shells are provided at their sides with outwardly extending lugs, the lugs of both shells being in register with each other and being adapted to be conn~cted by removablo locking means~ e.g~ a bolt and nut~ self-tapping screw or clamp and the like, The in~ention is illustrated~ b~ way of example only~ i~ the ac-companying drawings in which:
Fig. 1 is a cross section of a pipe connec-tor aceording to the invention~
Fig. 2 is an ele~ation thereof partly in longitudinal section~
A pipe 1 is surrounded by a sleeve 2 having an external flango 3 at one end and an internal shoulder 4 near the otherJ against~hich shoulder the pipe 1 abuts~ An 0-ring 5 i9 inserted into an annular ~roove 6 of flange 3 and bightly surrounds pipe 10 The sleeve 2 may be integral with a similar one at the end remote from said flango~ i~e.
it may constitute a unit to connect a si~ilar pipe at the other end, or the sleeve may be provided at that end with an external or internal screw thread for connection to any other fittingsO ~11 t~s is known per se in pipe connectors.
According to -the invention~ two semi-cylindrical shells 7, g are provided~ the shells having an outwardly e~tending flange ~ having an internal groove ad~p-ted to straddle the ~lange 3 Or sleeve 2.
The shells 7, 8 have an internal diameter equal to the external diameter of the pipe and are provided with internal ridges 10 which in profile constitute teoth ~daptcd to bite into the wall 1 of the pipeO
The wall o~ each shell 7, g merges at each side with an outwardly ex-tending lug 11~ 12, respectively, said lugs being in a~ial register at each side of the shell.
The lugs 11, 12 are provided in the embodiment shown with a throug~-going bore housing a bolt 13 and nut 14 to tighten the shells to each other and thereby to cause the teeth 10 to engage the pipe~
1~L~;34~7 If desired~ a narrow bore m~y be made in lugs 11~ 12 and a self-tapping screw may be inserted therein to -tighten the shells 7~ ~ together~
Furthermore~ i~ desired~ a cl~mp or the like t~ghtening means may be pro~ided for tlghtening the shell~ to each other.
It c~n be seen that the connector above described ma~ be adapted ~or connecting pipes of any required diameter without having to change the baslc constructional features of the connector.
The present invention concerns a pipe connector for connecting plastic pipes to each other~ to any outlet or to other connectors.
The problem of connect~ng plastic pipes is different from that of connecting metal pipes since the plastic material may deform with concomitant change in flow conditions, if the pressure of the connector is too great. Therefore, the connectors used up to now provide an annular member having an internal screw-thread of teeth which, when said member ls screwed onto the pipe, bite into its wall to effect a tight connection.
The main drawback of this connector lies in the fact that the annular member is expensive to produce, i.e. the internal screw-thread requires an expensive mold and during molding deformations may occur which will prevent a liquid-tight connection. A further disadvantage in these connectors is that they cannot be applied to pipes of large diameter.
It is the object of the present invention to provide a pipe connector for plastic pipes which overcomes the above-mentioned drawback and which can easily be con-structed for and applied to pipes of any diameter.
An aspect of the invention is as follows:
A pipe connector for plastic pipes comprising a connecting sleeve flanged at one end and having near the other end an internal abutment for the pipe end, an O ring housed in an annular groove of said sleeve at said one end surrounding the pipe, characterlzed in that there are provided two semi cylindrical shells of an internal radius equal to the external radius of the pipe and having an internally grooved flange at one end adapted to straddle ~&
-la-the said flange of said sleeve, said shells having a number of internal ridges of tooth-like pro:Eile and means to tightly hold said shells together so that said toothed ridges bite into the wall oE the pipe end, said sleeve being adapted for fluid connection to a pipe coupling system~
~3~
~ 2 -In a preferred embodiment of the invention the shells are provided at their sides with outwardly extending lugs, the lugs of both shells being in register with each other and being adapted to be conn~cted by removablo locking means~ e.g~ a bolt and nut~ self-tapping screw or clamp and the like, The in~ention is illustrated~ b~ way of example only~ i~ the ac-companying drawings in which:
Fig. 1 is a cross section of a pipe connec-tor aceording to the invention~
Fig. 2 is an ele~ation thereof partly in longitudinal section~
A pipe 1 is surrounded by a sleeve 2 having an external flango 3 at one end and an internal shoulder 4 near the otherJ against~hich shoulder the pipe 1 abuts~ An 0-ring 5 i9 inserted into an annular ~roove 6 of flange 3 and bightly surrounds pipe 10 The sleeve 2 may be integral with a similar one at the end remote from said flango~ i~e.
it may constitute a unit to connect a si~ilar pipe at the other end, or the sleeve may be provided at that end with an external or internal screw thread for connection to any other fittingsO ~11 t~s is known per se in pipe connectors.
According to -the invention~ two semi-cylindrical shells 7, g are provided~ the shells having an outwardly e~tending flange ~ having an internal groove ad~p-ted to straddle the ~lange 3 Or sleeve 2.
The shells 7, 8 have an internal diameter equal to the external diameter of the pipe and are provided with internal ridges 10 which in profile constitute teoth ~daptcd to bite into the wall 1 of the pipeO
The wall o~ each shell 7, g merges at each side with an outwardly ex-tending lug 11~ 12, respectively, said lugs being in a~ial register at each side of the shell.
The lugs 11, 12 are provided in the embodiment shown with a throug~-going bore housing a bolt 13 and nut 14 to tighten the shells to each other and thereby to cause the teeth 10 to engage the pipe~
1~L~;34~7 If desired~ a narrow bore m~y be made in lugs 11~ 12 and a self-tapping screw may be inserted therein to -tighten the shells 7~ ~ together~
Furthermore~ i~ desired~ a cl~mp or the like t~ghtening means may be pro~ided for tlghtening the shell~ to each other.
It c~n be seen that the connector above described ma~ be adapted ~or connecting pipes of any required diameter without having to change the baslc constructional features of the connector.
Claims (4)
1. A pipe connector for plastic pipes comprising a connecting sleeve flanged at one end and having near the other end an internal abutment for the pipe end, an O-ring housed in an annular groove of said sleeve at said one end surrounding the pipe, characterized in that there are provided two semi-cylindrical shells of an internal radius equal to the external radius of the pipe and having an internally grooved flange at one end adapted to straddle the said flange of said sleeve, said shells having a number of internal ridges of tooth-like profile and means to tightly hold said shells together so that said toothed ridges bite into the wall of the pipe end, said sleeve being adapted for fluid connection to a pipe coupling system.
2. A pipe connector as claimed in claim 1, wherein the shells are provided at their sides with outwardly extending lugs, the lugs of both shells being in register with each other and being adapted to be connected by removable locking means.
3. A pipe connector as claimed in claim 1 or 2, wherein the means for holding the shells together are constituted by clamps.
4. A pipe connector as claimed in claim 2, wherein the locking means are constituted by a bolt and nut, by self-tapping screws or the like.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL57076A IL57076A0 (en) | 1979-04-16 | 1979-04-16 | Pipe connection for plast pipes |
| IL57076 | 1979-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1143407A true CA1143407A (en) | 1983-03-22 |
Family
ID=11050990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000349508A Expired CA1143407A (en) | 1979-04-16 | 1980-04-10 | Pipe connection for plastic pipes |
Country Status (10)
| Country | Link |
|---|---|
| AU (1) | AU535065B2 (en) |
| CA (1) | CA1143407A (en) |
| DE (1) | DE3013312A1 (en) |
| ES (1) | ES260651Y (en) |
| FR (1) | FR2454576A1 (en) |
| GR (1) | GR67740B (en) |
| IL (1) | IL57076A0 (en) |
| IT (1) | IT1141571B (en) |
| MX (1) | MX153015A (en) |
| ZA (1) | ZA801767B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3702948A1 (en) * | 1987-01-31 | 1988-08-11 | Agintec Ag | PIPE COUPLING |
| GB2276688B (en) * | 1993-03-26 | 1996-03-27 | Barber Eduard & Co Ltd | Pipe connectors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ188004A (en) * | 1977-08-05 | 1982-02-23 | Philmac Pty Ltd | Polymeric pipe fitting locking ring maintains constant pressure on deformable seal |
-
1979
- 1979-04-16 IL IL57076A patent/IL57076A0/en unknown
-
1980
- 1980-03-22 GR GR61522A patent/GR67740B/el unknown
- 1980-03-25 ZA ZA00801767A patent/ZA801767B/en unknown
- 1980-03-27 AU AU56889/80A patent/AU535065B2/en not_active Ceased
- 1980-04-04 FR FR8007896A patent/FR2454576A1/en active Granted
- 1980-04-05 DE DE19803013312 patent/DE3013312A1/en active Granted
- 1980-04-07 ES ES1980260651U patent/ES260651Y/en not_active Expired
- 1980-04-10 CA CA000349508A patent/CA1143407A/en not_active Expired
- 1980-04-14 IT IT21357/80A patent/IT1141571B/en active
- 1980-04-16 MX MX181992A patent/MX153015A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU5688980A (en) | 1980-10-23 |
| DE3013312C2 (en) | 1988-10-13 |
| IL57076A0 (en) | 1979-07-25 |
| DE3013312A1 (en) | 1980-11-06 |
| FR2454576A1 (en) | 1980-11-14 |
| MX153015A (en) | 1986-07-21 |
| GR67740B (en) | 1981-09-16 |
| IT8021357A0 (en) | 1980-04-14 |
| ES260651Y (en) | 1982-11-16 |
| IT1141571B (en) | 1986-10-01 |
| AU535065B2 (en) | 1984-03-01 |
| ES260651U (en) | 1982-05-16 |
| FR2454576B3 (en) | 1982-03-12 |
| ZA801767B (en) | 1981-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |