A slip coupling. A tube having smooth outer walls is joined to a larger hollow outer casing using a slip coupling assembly. The casing has an interior cavity and a flanged end. An annular seal is placed adjacent the flanged end. A split flange is positioned adjacent the annular seal to compress the
A slip coupling. A tube having smooth outer walls is joined to a larger hollow outer casing using a slip coupling assembly. The casing has an interior cavity and a flanged end. An annular seal is placed adjacent the flanged end. A split flange is positioned adjacent the annular seal to compress the seal toward the flanged end. The split flange further includes a gasket seat for a gasket circumferentially extending around the smooth outer wall of the pipe, to form a fluid tight seal between the split ring and the outer wall of the pipe. One or more backing rings and a plurality of fasteners are utilized to secure (1) the flanged end of the outer casing, (2) the annular seal, (3) the split flange, and (4) the gasket, in a fluid tight relationship. The design is suitable for manufacture of parts in high density polyethylene.
대표청구항▼
The invention claimed is: 1. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at
The invention claimed is: 1. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (2) a flanged end; (b) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an interior wall, said interior wall further comprising at least one gasket seat, wherein said gasket seat comprises a recess in said interior wall of said first and of said second ring portions, said first and second ring portions adjustably movable between an open position wherein said first and second rings open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe; and (c) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted to slidably receive said smooth outer wall of said pipe and to provide a fluid tight seal between said split ring and said smooth outer wall of said pipe. 2. The apparatus as set forth in claim 1, further comprising an outer casing backing flange, said outer casing backing flange sized and shaped for close fitting engagement over said flanged end of said outer casing. 3. The apparatus as set forth in claim 1 or in claim 2, wherein said first and second ring portions, when in said closed position, comprise a split ring having a substantially annular ring shape which extends between an outer wall and said interior wall. 4. The apparatus as set forth in claim 3, wherein said split ring further comprises a plurality of longitudinally extending bolt through apertures defined by bolt hole interior walls. 5. The apparatus as set forth in claim 4, further comprising a plurality of fasteners having shaft portions, and wherein said backing flange comprises a plurality of fastener through apertures, wherein each fastener through aperture is defined by an aperture edge wall portion, and wherein said shaft portions of said fasteners are sized and shaped for fitting through one of said fastener through apertures in said backing flange and through a companion axially aligned bolt through aperture in said split ring, and wherein at least one of said plurality of fasteners is adjustably tightenable to secure said backing flange and said split ring each toward the other. 6. The apparatus as set forth in claim 3, wherein eight through apertures are provided in said split ring. 7. The apparatus as set forth in claim 1, wherein said recess comprises an annular groove in said interior wall of said first and of said second ring portions. 8. The apparatus as set forth in claim 7, wherein said first and said second ring portions have an obverse side and a reverse side, and wherein said annular groove is centered between said obverse side and said reverse side. 9. The apparatus as set forth in claim 8, wherein upper interior body portion extends between said obverse side of said first or of said second split ring portion and said upper groove side of said annular groove, and wherein said upper interior body portion has a thickness HI equal to height HA of said annular groove. 10. The apparatus as set forth in claim 8, wherein lower interior body portion extends between said reverse side of said first or of said second split ring portion and said lower groove side of said annular groove, and wherein said lower interior body portion has a thickness HL equal to height HA of said annular groove. 11. The apparatus as set forth in claim 7, wherein said annular groove has a height HA extending between a lower groove side and an upper groove side, and wherein said first and said second ring portions comprise an upper interior body portion above said upper groove side and a lower interior body portion below said lower groove side. 12. The apparatus as set forth in claim 1, wherein said flanged end of said outer casing extends radially outward from said outer casing to an outer end to provide an integral outer casing flange of width sufficient to provide, along a longitudinal axis, a plurality of fastener holes defined by flange interior edge wall holes. 13. The apparatus as set forth in claim 1, or in claim 12, further comprising a split ring backing flange, said split ring backing flange sized and shaped for close fitting engagement against said split ring. 14. The apparatus as set forth in claim 13, further comprising a plurality of fasteners having shaft portions, and wherein said split ring backing flange comprises a plurality of fastener through apertures, wherein each fastener through aperture is defined by an aperture edge wall portion, and wherein said shaft portions of said fasteners are sized and shaped for fitting through one of said fastener through apertures in said split ring backing flange and through a companion axially aligned bolt through aperture in said split ring, and wherein at least one of said plurality of fasteners is adjustably tightenable to secure said split ring backing flange and said split ring each toward the other. 15. The apparatus as set forth in claim 13, wherein the material for manufacture of said split ring backing flange is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 16. The apparatus as set forth in claim 1, wherein the material for manufacture of said outer casing is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 17. The apparatus as set forth in claim 1, wherein the material for manufacture of said split ring is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 18. The apparatus as set forth in claim 1, wherein the material for manufacture of said flanged end is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 19. The apparatus as set forth in claim 18, wherein said flanged end comprises eight bolt holes defined by edge wall apertures, and wherein said eight bolt holes are equally angularly spaced apart. 20. The apparatus as set forth in claim 1, wherein said first and second ring portions of said split ring are identical. 21. The apparatus as set forth in claim 20, wherein each one of said split ring portions comprises a pair of ear portions, said ear portions each having a face portion adapted for matching engagement with an identical face portion of another split ring portion. 22. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (2) a flanged end; (b) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an interior wall, said interior wall further comprising at least one gasket seat, said first and second ring portions adjustbly movable between an open position wherein said first and second rings open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe; (c) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted to slidably receive said smooth outer wall of said pipe and to provide a fluid tight seal between said split ring and said smooth outer wall of said pipe; and (d) an annular seal, and wherein split ring comprises an obverse side potion, and wherein said flanged end comprises a flange face portion, and wherein said annular seal is sized and shaped for sealing engagement with and compression between said flanged face portion and said obverse side of said split ring. 23. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (2) a flanged end; (b) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an interior wall, said interior wall further comprising at least one gasket seat, said first and second ring portions adjustably movable between an open position wherein said first and second rings open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe; (c) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted to slidably receive said smooth outer wall of said pipe and to provide a fluid tight seal between said split ring and said smooth outer wall of said pipe; and (d) a compression retainer, said compression retainer circumferentially confining said split ring against radially outward movement. 24. The apparatus as set forth in claim 23, wherein said compression retainer comprises an adjustably tightenable substantially circular metallic band. 25. The apparatus as set forth in claim 24, wherein said compression retainer comprises a pair of substantially semi-circular metallic band portions, said pair of substantially semi-circular metallic band portions comprising opposing attachment ear portions, said opposing attachment ear portions securable each toward the other by an adjustably tightenable fastener. 26. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (2) a flanged end; (b) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an interior wall, said interior wall further comprising at least one gasket seat, said first and second ring portions adjustably movable between an open position wherein said first and second rings open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe, wherein said first and second split ring portions each comprise a first arc portion having a first thickness on one side of said gasket seat, and a second arc portion having a second thickness on a longitudinally opposite side of said gasket seat, and wherein said first arc portion is less than one hundred eighty degrees (180째), and wherein said second arc portion is more than one hundred eighty degrees (180째); and (c) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted to slidably receive said smooth outer wall of said pipe and to provide a fluid tight seal between said split ring and said smooth outer wall of said pipe. 27. The apparatus as set forth in claim 26, wherein said first arc portion is one hundred fifty degrees (150째), and wherein said second arc portion is two hundred ten degrees (210째). 28. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (2) a flanged end; (b) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an interior wall, said interior wall further comprising at least one gasket seat, said first and second ring portions adjustably movable between an open position wherein said first and second rings open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe, wherein said first and second split ring portions each comprise a first arc portion having a first thickness on one side of said gasket seat, and a second arc portion having a second thickness on a longitudinally opposite side of said gasket seat, and wherein said first arc portion and said second arc portion are each one hundred and eighty degrees (180째), and wherein said second arc portion and said first arc portion are angularly offset by a preselected angle alpha (α); and (c) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted to slidably receive said smooth outer wall of said pipe and to provide a fluid tight seal between said split ring and said smooth outer wall of said pipe. 29. The apparatus as set forth in claim 28, wherein said preselected angle alpha (α) is about thirty degrees (30째). 30. An article of manufacture comprising: (a) a pipe having a longitudinal axis, a smooth outer wall, and an end opening; and (b) a slip coupling forming a slidable, pressurizable fluid tight seal with said smooth outer wall of said pipe, said slip coupling comprising (1) an outer casing, said outer casing having (A) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (B) a flanged end; (2) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an interior wall, said interior wall further comprising at least one gasket seat, said first and second ring portions adjustably movable between an open position wherein said first and second ring portions open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe; (3) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted for providing a fluid tight seal between said split ring and said smooth outer wall of said pipe; (4) an annular seal, and wherein split ring comprises an obverse side portion, and wherein said flanged end of said outer casing comprises a flange face portion, and wherein said annular seal is sized and shaped for sealing engagement with and compression between said flange face portion and said obverse side of said split ring to provide a fluid tight seal therebetween. 31. The apparatus as set forth in claim 30, further comprising an outer casing backing flange, said outer casing backing flange sized and shaped for close fitting engagement over said flanged end of said outer casing. 32. The apparatus as set forth in claim 30, further comprising a split ring backing flange, said split ring backing flange sized and shaped for close fitting engagement against said split ring. 33. The apparatus as set forth in claim 32, wherein said split ring further comprises a plurality of longitudinally extending bolt through apertures defined by bolt hole interior walls. 34. The apparatus as set forth in claim 33, further comprising a plurality of fasteners having shaft portions, and wherein said split ring backing flange comprises a plurality of fastener through apertures, wherein each fastener through aperture is defined by an aperture edge wall portion, and wherein said shaft portions of said fasteners are sized and shaped for fitting through one of said fastener through apertures in said split ring backing flange and through a companion axially aligned bolt through aperture in said split ring, and wherein at least one of said plurality of fasteners is adjustably tightenable to secure (1) said split ring backing flange, (2) said split ring, and (3) either said outer casing backing flange or said integral outer casing flange, whichever is present, together in a leak tight assembly. 35. The apparatus as set forth in claim 34, wherein eight through apertures are provided in said split ring. 36. The apparatus as set forth in claim 31, wherein said outer casing backing flange comprises ductile iron. 37. The apparatus as set forth in claim 31, wherein said outer casing backing flange comprises eight bolt holes defined by edge wall apertures, and wherein said eight bolt holes are equally angularly spaced apart. 38. The apparatus as set forth in claim 30, wherein said flanged end of said outer casing extends radially outward from said outer casing to an outer end to provide an integral outer casing flange of width sufficient to provide, along a longitudinal axis, a plurality of fastener holes defined by flange interior edge wall holes. 39. The apparatus as set forth in claim 30 wherein said gasket seat comprises a recess in said interior wall of said first and of said second ring portions. 40. The apparatus as set forth in claim 39, wherein said recess comprises an annular groove in said interior wall of said first and of said second ring portions. 41. The apparatus as set forth in claim 30, further comprising a compression retainer, said compression retainer circumferentially confining said split ring against radially outward movement. 42. The apparatus as set forth in claim 41, wherein said compression retainer comprises an adjustably tightenable substantially circular metallic band. 43. The apparatus as set forth in claim 42, wherein said compression retainer comprises a pair of semi-circular metallic band portions, said semi-circular metallic band portions also having pairs of opposing attachment ear portions, said opposing attachment ear portions in each pair of opposing attachment ear portions secured each toward the other by an adjustably tightenable fastener. 44. The apparatus as set forth in claim 30, wherein said split ring portions are identical. 45. The apparatus as set forth in claim 44, wherein each one of said split ring portions comprises a pair of ear portions, said ear portions each having a face portion adapted for matching engagement with an identical face portion of another split ring portion. 46. The apparatus as set forth in claim 45, wherein said split ring portions each comprise a first arc portion having a first thickness on one side of said gasket seat, and a second arc portion having a second thickness on a longitudinally opposite side of said gasket seat, and wherein said first arc portion and said second arc portion are each one hundred and eighty degrees (180째), and wherein said second arc portion and said first arc portion are angularly offset by a preselected angle alpha (α). 47. The apparatus as set forth in claim 46, wherein said preselected angle alpha (α) is about thirty degrees (30째). 48. An assembly for collection of landfill gas, said assembly comprising: (a) a pipe comprising a hollow cylindrical member having smooth outer walls and an upper end; (b) a slip coupling assembly, said slip coupling assembly comprising (1) a hollow cylindrical outer casing having an interior cavity, a first open end, and a second flanged end; (2) an annular seal, said annular seal placed adjacent said flanged end, (3) a split flange, said split flange positioned adjacent said annular seal so as to compress said annular seal toward said flanged end, said split flange further comprising a gasket seat, (4) a gasket located in said gasket seat and circumferentially extending around said smooth outer wall of said pipe to form a fluid tight seal therebetween, and (5) one or more backing rings and a plurality of fasteners to secure (A) said flanged end of said outer casing, (B) said annular seal, (C) said split flange, and (D) said gasket, in a fluid tight relationship. 49. The apparatus as set forth in claim 48, wherein material of construction for said split flange is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 50. The apparatus as set forth in claim 48, wherein the material of construction for said outer casing is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 51. The apparatus as set forth in claim 48, wherein the material of construction for said pipe is selected from the group consisting of (a) high density polyethylene, (b) an aluminum alloy, (c) stainless steel, (d) brass, (e) carbon steel, (f) polyvinyl chloride, or (g) a moldable reinforced composite material. 52. The apparatus as set forth in claim 48, wherein said slip coupling is slidable along a preselected length of said pipe, and wherein said preselected length is at least two (2) feet. 53. The apparatus as set forth in claim 48, wherein said slip coupling is slidable along a preselected length of said pipe, and wherein said preselected length is at least ten (10) feet. 54. The apparatus as set forth in claim 48, wherein said slip coupling is slidable along a preselected length of said pipe, and wherein said preselected length is forty (40) or more feet. 55. The apparatus as set forth in claim 48, wherein a fluid tight seal is provided which is capable of pressurization. 56. The apparatus as set forth in claim 48, wherein a fluid tight seal is provided capable of withstanding up to one hundred fifty (150) pounds of gas pressure. 57. The apparatus as set forth in claim 1, or in claim 30, or in claim 48, wherein said gasket comprises a resilient material having a coefficient of friction sufficiently low that said gasket remains seated during sliding movement of said gasket over said smooth outer wall of said pipe. 58. The apparatus as set forth in claim 57, wherein said gasket material comprises a fluorolastamer. 59. The apparatus as set forth in claim 58, wherein said fluorolastamer comprises hexafluoropropylne-vinylidene fluoride. 60. The apparatus as set forth in claim 59, wherein said hexafluoropropylene-vinylidene fluoride comprises a VITON.RTM. brand fluorolastamer. 61. A slip coupling for engaging a pipe having a longitudinal axis, a smooth outer wall, and an end opening, said slip coupling comprising: (a) an outer casing, said outer casing having (1) an interior passageway, said interior passageway sized and shaped to fit therein at least some length of said pipe, and (2) a flanged end; (b) a split ring, said split ring comprising first and second ring portions, said first and second ring portions each having an obverse side, a reverse side, and an interior wall, said interior wall further comprising at least one gasket seat, said first and second ring portions each further comprising a pair of extending ear portions, said first and second ring portions adjustably movable between an open position, wherein said first and second ring portions open to allow attachment to or removal from said pipe, and a closed position wherein said first and second ring portions are securable in close fitting engagement around said pipe, said ear portions of said first ring portion and said ear portions of said second ring portion configured for close fitting mated engagement when said split (c) a gasket, said gasket located at said at least one gasket seat in said inner wall of said first and said second ring portions, said gasket adapted to slidably receive said smooth outer wall of said pipe and to provide a fluid tight seal between said split ring and said smooth outer wall of said pipe. 62. The apparatus as set forth in claim 61, wherein each one of the face portions comprises face portions adapted for matching engagement with an identical face portion of another split ring portion. 63. The apparatus as set forth in claim 61, wherein each said gasket seat comprises a recess in said interior wall of said first and of said second ring portions.
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이 특허에 인용된 특허 (5)
Martin Grady L. (P.O. Box 1588 Conway AR 72032), Conduit split case expansion coupling.
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