Pivoting pipe coupling having a movable gripping body
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-017/00
F16L-017/04
F16L-021/06
F16L-025/12
F16L-021/00
출원번호
US-0026561
(2013-09-13)
등록번호
US-9388922
(2016-07-12)
발명자
/ 주소
Dole, Douglas R
출원인 / 주소
Victaulic Company
대리인 / 주소
Ballard Spahr LLP
인용정보
피인용 횟수 :
0인용 특허 :
38
초록▼
A coupling for securing pipe elements together in end-to-end relation has segments joined at one end by a pivot attachment and at an opposite end by an adjustable connection member. The segments surround a central space which receives the pipe elements. A gripping body is captured between the segmen
A coupling for securing pipe elements together in end-to-end relation has segments joined at one end by a pivot attachment and at an opposite end by an adjustable connection member. The segments surround a central space which receives the pipe elements. A gripping body is captured between the segments. The segments have angularly oriented reaction surfaces. The gripping body has angularly oriented contact surfaces which interface with the reaction surfaces. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping body radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping body engage and retain the pipe elements. A method of inserting pipe elements into the coupling while the segments and the gripping body are supported on a seal is also disclosed.
대표청구항▼
1. A pipe coupling for securing end portions of a pair of pipe elements together end-to-end, said coupling comprising: a pair of segments connected end-to-end surrounding a central space for receiving said pipe elements, each said segment having a pair of arcuate surfaces positioned in spaced relati
1. A pipe coupling for securing end portions of a pair of pipe elements together end-to-end, said coupling comprising: a pair of segments connected end-to-end surrounding a central space for receiving said pipe elements, each said segment having a pair of arcuate surfaces positioned in spaced relation, said arcuate surfaces facing said central space and being engagable with said pipe elements;a pivot attachment positioned at one end of said segments, said pivot attachment pivotally connecting said segments to one another;at least one notch positioned in at least one of said arcuate surfaces, said notch being positioned adjacent to said pivot attachment;connection members positioned on each of said segments at an end opposite to said pivot attachment, said connection members being adjustably tightenable for drawing said segments toward one another;at least one reaction surface positioned on each of said segments, said reaction surfaces facing toward said central space;at least one gripping body positioned between said segments, said gripping body having a pair of gripping surfaces positioned in spaced apart relation and facing said central space;a pair of contact surfaces positioned on said gripping body, each said contact surface being in facing relation with one of said reaction surfaces, andwherein adjustable tightening of said connection members pivots said segments about said pivot attachment thereby drawing said coupling segments together for engagement of said arcuate surfaces with said pipe elements, said contact surfaces interacting with said reaction surfaces to move said at least one gripping body toward said central space for engagement of said gripping surfaces with said pipe elements. 2. The pipe coupling according to claim 1, wherein said at least one gripping body is positioned adjacent to said connection members. 3. The pipe coupling according to claim 2, wherein each of said connection members comprises a projection extending outwardly from said end of said segment opposite to said pivot attachment, said projections being adapted to receive a fastener for adjustably connecting said segments to one another, said reaction surfaces being positioned on each of said projections. 4. The pipe coupling according to claim 1, wherein said at least one gripping body is positioned adjacent to said pivot attachment. 5. The pipe coupling according to claim 1, wherein said pivot attachment comprises a hinge having at least one bearing positioned on each said segment, said bearings being connected by an axle. 6. The pipe coupling according to claim 1, wherein said pivot attachment comprises a tang projecting from one of said segments and a stirrup extending from the other of said segments, said tang interfitting within said stirrup, said tang and stirrup being pivotable relatively to one another. 7. The pipe coupling according to claim 1, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;a first curved surface positioned on said first projection;a second projection extending from another of said segments;a second slot positioned in said second projection;a second curved surface positioned on said second projection and interfacing with said first curved surface; anda fastener extending through said first and second slots between said first and second projections. 8. The pipe coupling according to claim 7, further comprising: at least one rib positioned on said first curved surface, said at least one rib being oriented substantially parallel to said first slot;at least one recess positioned within said second curved surface, said at least one recess being oriented substantially parallel to said first slot, said at least one rib being received within said at least one recess. 9. The pipe coupling according to claim 1, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;at least a first tooth positioned on said first projection;a second projection extending from another of said segments;a second slot positioned in said second projection;at least a second tooth positioned on said second projection and interfacing with said first tooth; anda fastener extending through said first and second slots between said first and second projections. 10. The pipe coupling according to claim 9, further comprising a plurality of said first and second teeth, said first and second teeth comprising intermeshing gear teeth. 11. The pipe coupling according to claim 9, further comprising a plurality of said first and second teeth, said first and second teeth comprising intermeshing splines. 12. The pipe coupling according to claim 1, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;a second projection extending from another of said segments;a tongue positioned on said second projection and interfacing within said first slot on said first projection; anda fastener extending between said first and second projections, and through said first slot and said tongue. 13. The pipe coupling according to claim 1, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;a first angularly oriented surface positioned on said first projection;a second projection extending from another of said segments;a second slot positioned in said second projection;a second angularly oriented surface positioned on said second projection and interfacing with said first angularly oriented surface; anda fastener extending through said first and second slots between said first and second projections. 14. The pipe coupling according to claim 1, further comprising a sealing member captured between said segments and positioned between said arcuate surfaces, said sealing member having inwardly facing sealing surfaces engagable with said pipe elements for forming a fluid-tight joint between said pipe elements. 15. The pipe coupling according to claim 14, wherein said sealing member has an outer surface sized so as to support said segments and said gripping body in spaced relation away from said central space sufficient to permit insertion of said pipe elements into said central space. 16. In combination, a pipe coupling and a pair of pipe elements, said pipe coupling for securing end portions of said pair of pipe elements together end-to-end, said combination comprising: a pair of segments connected end-to-end surrounding a central space for receiving said pipe elements, each said segment having a pair of arcuate surfaces positioned in spaced relation, said arcuate surfaces facing said central space and being engagable with said pipe elements;a pivot attachment positioned at one end of said segments, said pivot attachment pivotally connecting said segments to one another;a respective notch positioned in each of said arcuate surfaces, each of said notches being positioned adjacent to said pivot attachment;connection members positioned on each of said segments at an end opposite to said pivot attachment, said connection members being adjustably tightenable for drawing said segments toward one another;a pair of reaction surfaces positioned on each of said segments, said reaction surfaces facing toward said central space;at least one gripping body positioned between said segments, said gripping body having a pair of gripping surfaces positioned in spaced apart relation and facing said central space;first and second pairs of contact surfaces positioned on said gripping body, each said contact surface being in facing relation with one of said reaction surfaces on said segments, andwherein adjustable tightening of said connection members pivots said segments about said pivot attachment thereby drawing said coupling segments together for engagement of said arcuate surfaces with said pipe elements, said contact surfaces interacting with said reaction surfaces to move said at least one gripping body toward said central space for engagement of said gripping surfaces with said pipe elements. 17. The combination according to claim 16, wherein said at least one gripping body is positioned adjacent to said connection members. 18. The combination according to claim 17, wherein each of said connection members comprises a projection extending outwardly from said end of said segment opposite to said pivot attachment, said projections being adapted to receive a fastener for adjustably connecting said segments to one another, said reaction surfaces being positioned on each of said projections. 19. The combination according to claim 16, wherein said at least one gripping body is positioned adjacent to said pivot attachment. 20. The combination according to claim 16, wherein said pivot attachment comprises a hinge having a pair of bearings positioned on one of said segments and a single bearing positioned on another of said segments, said pair of bearings being connected to said single bearing by an axle. 21. The combination according to claim 16, wherein said pivot attachment comprises a tang projecting from one of said segments and a stirrup extending from the other of said segments, said tang interfitting within said stirrup, said tang and stirrup being pivotable relatively to one another. 22. The combination according to claim 16, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;a first curved surface positioned on said first projection;a second projection extending from another of said segments;a second slot positioned in said second projection;a second curved surface positioned on said second projection and interfacing with said first curved surface; anda fastener extending through said first and second slots between said first and second projections. 23. The combination according to claim 22, further comprising: at least one rib positioned on said first curved surface, said at least one rib being oriented substantially parallel to said first slot;at least one recess positioned within said second curved surface, said at least one recess being oriented substantially parallel to said first slot, said at least one rib being received within said at least one recess. 24. The combination according to claim 16, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;at least a first tooth positioned on said first projection;a second projection extending from another of said segments;a second slot positioned in said second projection;at least a second tooth positioned on said second projection and interfacing with said first tooth; anda fastener extending through said first and second slots between said first and second projections. 25. The combination according to claim 24, further comprising a plurality of said first and second teeth, said first and second teeth comprising intermeshing gear teeth. 26. The combination according to claim 24, further comprising a plurality of said first and second teeth, said first and second teeth comprising intermeshing splines. 27. The combination according to claim 16, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;a second projection extending from another of said segments;a tongue positioned on said second projection and interfacing within said first slot on said first projection; anda fastener extending between said first and second projections, and through said first slot and said tongue. 28. The combination according to claim 16, wherein said pivot attachment comprises: a first projection extending from one of said segments;a first slot positioned in said first projection;a first angularly oriented surface positioned on said first projection;a second projection extending from another of said segments;a second slot positioned in said second projection;a second angularly oriented surface positioned on said second projection and interfacing with said first angularly oriented surface; anda fastener extending through said first and second slots between said first and second projections. 29. The combination according to claim 16, further comprising a sealing member captured between said segments and positioned between said arcuate surfaces, said sealing member having inwardly facing sealing surfaces engagable with said pipe elements for forming a fluid-tight joint between said pipe elements. 30. The combination according to claim 29, wherein said sealing member has an outer surface sized so as to support said segments and said gripping body in spaced relation away from said central space sufficient to permit insertion of said pipe elements into said central space. 31. The combination according to claim 16, wherein said arcuate surfaces have a radius of curvature greater than the radius of curvature of the outer surfaces of the pipe elements.
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이 특허에 인용된 특허 (38)
Bowsher Mark A. (Flint TX), Clamp with teeth for grooved pipes.
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