IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0532902
(2012-06-26)
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등록번호 |
US-RE44444
(2013-08-20)
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발명자
/ 주소 |
- Dole, Douglas R.
- Cuvo, Anthony J.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
35 |
초록
▼
A method for connecting pipe elements together end to end. The method includes providing a coupling having a plurality of segments with at least one camming surface, the segments being joined end to end by a plurality of adjustably tightenable fasteners, positioning a first and a second of the pipe
A method for connecting pipe elements together end to end. The method includes providing a coupling having a plurality of segments with at least one camming surface, the segments being joined end to end by a plurality of adjustably tightenable fasteners, positioning a first and a second of the pipe elements in end to end relation, positioning the segments surrounding the ends of the pipe elements, engaging the camming surfaces on the segments with grooves on the pipe elements and tightening the fasteners so as to draw the segments toward one another. The camming surfaces slide into the grooves and move the first and second pipe elements away from one another.
대표청구항
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1. A method for connecting pipe elements together end-to-end, said method comprising: using a pair of pipe elements, each having a circumferential groove therein, each said groove being positioned proximate to an end of a respective one of said pipe elements, each said groove having an angularly ori
1. A method for connecting pipe elements together end-to-end, said method comprising: using a pair of pipe elements, each having a circumferential groove therein, each said groove being positioned proximate to an end of a respective one of said pipe elements, each said groove having an angularly oriented side surface facing said end of said respective one of said pipe elements;using a coupling comprising a plurality of segments joined end-to-end by a plurality of adjustably tightenable fasteners, each of said segments having a pair of keys projecting radially inwardly, said keys being positioned in spaced apart relation from one another and defining a space therebetween, at least one of said keys on one of said segments having a first camming surface positioned adjacent to one end of said segment, said first camming surface facing away from said space between said keys and being angularly oriented relatively thereto and having a radial orientation angle substantially the same as said angularly oriented side surface of one of said grooves;positioning a first and a second of said pipe elements in end-to-end relation;positioning said plurality of segments surrounding ends of said first and second pipe elements;engaging said first camming surface with said angularly oriented side surface of said groove in one of said first and second pipe elements;applying said fasteners to said segments; andtightening said fasteners so as to draw said segments toward one another, said first camming surface sliding into said groove against said angularly oriented side surface and thereby moving said first and second pipe elements away from one another. 2. The method according to claim 1, further comprising positioning a sealing member surrounding said ends of said first and said second pipe elements. 3. The method according to claim 1, further comprising placing ends of said first and second pipe elements in abutting relationship. 4. The method according to claim 1, further comprising forming a groove in each of said first and second pipe elements by forming a first side surface proximate to an end of said pipe elements, forming a second side surface positioned in spaced relation to said first side surface and distal to said end of said pipe, forming a floor that extends between said first and second side surfaces, said second side surface of said one groove comprising said angularly oriented side surface. 5. The method according to claim 4, further comprising forming said first side surface substantially perpendicularly to a long axis of said pipe element. 6. The method according to claim 5, further comprising further tightening said fasteners and thereby forcing said keys into said grooves. 7. The method according to claim 6, further comprising contacting said first side surfaces in each of said grooves with said keys. 8. The method according to claim 7, wherein said segments further comprise lugs positioned at each end thereof, said lugs being adapted to receive said fasteners, one of said lugs on each of said segments being in facing relation with one of said lugs on another of said segments, said method further including tightening said fasteners so as to bring said lugs in facing relation into contact with one another thereby forming a rigid joint. 9. A method for connecting pipe elements together end-to-end, said method comprising: using a pair of pipe elements, each having a circumferential groove therein, each said groove being positioned proximate to an end of a respective one of said pipe elements, each said groove having an angularly oriented side surface facing said end of said respective one of said pipe elements;using a coupling comprising first and second segments joined end-to-end by a plurality of adjustably tightenable fasteners, each of said segments having a pair of keys projecting radially inwardly, said keys being positioned in spaced apart relation from one another and defining a space therebetween, each of said keys having a first camming surface positioned adjacent to one end of said segment, and a second camming surface positioned adjacent to an opposite end of said segment, said camming surfaces facing away from said space between said keys and being angularly oriented relatively thereto and having a radial orientation angle substantially the same as said angularly oriented side surface of one of said grooves;positioning a first and a second of said pipe elements in end-to-end relation;positioning said first and second segments surrounding ends of said first and second pipe elements;engaging said camming surfaces with said angularly oriented side surfaces of said grooves in said first and second pipe elements;applying said fasteners to said segments; andtightening said fasteners so as to draw said segments toward one another, said camming surfaces sliding into said grooves against said angularly oriented side surfaces and thereby moving said first and second pipe elements away from one another. 10. The method according to claim 9, further comprising positioning a sealing member surrounding said ends of said first and said second pipe elements. 11. The method according to claim 9, further comprising placing ends of said first and second pipe elements in abutting relationship. 12. The method according to claim 9, further comprising forming a groove in each of said first and second pipe elements by forming a first side surface proximate to an end of said pipe elements, forming a second side surface positioned in spaced relation to said first side surface and distal to said end of said pipe, forming a floor that extends between said first and second side surfaces, said second side surface comprising said angularly oriented side surface. 13. The method according to claim 12, further comprising forming said first side surfaces substantially perpendicularly to a long axis of said pipe element. 14. The method according to claim 13, further comprising further tightening said fasteners and thereby forcing said keys into said grooves. 15. The method according to claim 14, further comprising contacting said first side surfaces in each of said grooves with said keys. 16. The method according to claim 15, wherein said segments further comprise lugs positioned at each end thereof, said lugs being adapted to receive said fasteners, one of said lugs on each of said segments being in facing relation with one of said lugs on another of said segments, said method further including tightening said fasteners so as to bring said lugs in facing relation into contact with one another thereby forming a rigid joint. 17. A method for connecting pipe elements together end-to-end, said method comprising: using a pair of pipe elements, each having a circumferential groove therein, each said groove being positioned proximate to an end of a respective one of said pipe elements, at least one of said grooves having an angularly oriented side surface facing said end of said respective one of said pipe elements;using a coupling comprising a plurality of segments joined end-to-end by a plurality of adjustably tightenable fasteners, each of said segments having a pair of keys projecting radially inwardly, said keys being positioned in spaced apart relation from one another and defining a space therebetween, at least one of said keys on one of said segments having a first camming surface positioned adjacent to one end of said segment, said first camming surface facing away from said space between said keys and being angularly oriented relatively thereto and having a radial orientation angle substantially the same as said angularly oriented side surface of said at least one of said grooves;positioning a first and a second of said pipe elements in end-to-end relation;positioning said plurality of segments surrounding ends of said first and second pipe elements;engaging said first camming surface with said angularly oriented side surface of said at least one of said grooves in one of said first and second pipe elements;applying said fasteners to said segments; andtightening said fasteners so as to draw said segments toward one another, said first camming surface sliding into said at least one of said grooves against said angularly oriented side surface and thereby moving said first and second pipe elements away from one another. 18. The method according to claim 17, further comprising forming said at least one groove in at least one pipe element of said first and second pipe elements by forming a first side surface proximate to an end of said at least one pipe element, forming a second side surface positioned in spaced relation to said first side surface and distal to said end of said at least one pipe element, forming a floor that extends between said first and second side surfaces, said second side surface comprising said angularly oriented side surface. 19. The method according to claim 18, further comprising forming said first side surface substantially perpendicularly to a long axis of said at least one pipe element. 20. A method for connecting pipe elements together end-to-end, said method comprising: using a pair of pipe elements, each having a circumferential groove therein, each said groove being positioned proximate to an end of a respective one of said pipe elements, at least one of said grooves having an angularly oriented side surface facing said end of said respective one of said pipe elements;using a coupling comprising first and second segments joined end-to-end by a plurality of adjustably tightenable fasteners, each of said segments having a pair of keys projecting radially inwardly, said keys being positioned in spaced apart relation from one another and defining a space therebetween, at least one of said keys having a first camming surface positioned adjacent to one end of said segment, said first camming surface facing away from said space between said keys and being angularly oriented relatively thereto and having a radial orientation angle substantially the same as said angularly oriented side surface of said at least one of said grooves;positioning a first and a second of said pipe elements in end-to-end relation;positioning said first and second segments surrounding ends of said first and second pipe elements;engaging said first camming surface with said angularly oriented side surface of said at least one of said grooves in said first and second pipe elements;applying said fasteners to said segments; andtightening said fasteners so as to draw said segments toward one another, said first camming surface sliding into said at least one groove against said angularly oriented side surface and thereby moving said first and second pipe elements away from one another. 21. The method according to claim 20, further comprising forming said at least one groove in at least one pipe element of said first and second pipe elements by forming a first side surface proximate to an end of said at least one pipe element, forming a second side surface positioned in spaced relation to said first side surface and distal to said end of said at least one pipe element, forming a floor that extends between said first and second side surfaces, said second side surface comprising said angularly oriented side surface. 22. The method according to claim 21, further comprising forming said first side surface substantially perpendicularly to a long axis of said at least one pipe element.
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