A joint restraint includes a split ring terminating in radially outwardly extending flanges. A shell includes a cylindrical sleeve, an annular flange at one end and arms projecting generally tangentially for securement behind lugs on a standard bell end of a fitting. With the split ring disposed wit
A joint restraint includes a split ring terminating in radially outwardly extending flanges. A shell includes a cylindrical sleeve, an annular flange at one end and arms projecting generally tangentially for securement behind lugs on a standard bell end of a fitting. With the split ring disposed within the shell and flanges projecting through a radial opening through the shell, a pipe end may be inserted through the joint restraint into the bell. By compressing the split ring about the pipe end by drawing the flanges toward one another and bolting them in place, relative axial movement of the pipe end and fitting is precluded by engagement of the shell flange and split ring.
대표청구항▼
What is claimed is: 1. A joint restraint for a rigid pipe, said joint restraint comprising: an annular shell, formed with a radial opening, having a cylindrical surface and an axial entry opening for receiving an end portion of the pipe, and a pair of arms spaced radially outwardly away from said c
What is claimed is: 1. A joint restraint for a rigid pipe, said joint restraint comprising: an annular shell, formed with a radial opening, having a cylindrical surface and an axial entry opening for receiving an end portion of the pipe, and a pair of arms spaced radially outwardly away from said cylindrical surface and engaging a pair of radially outwardly extending circumferentially-spaced lugs on a substantially cylindrical, closed periphery pipe fining having a through-opening, wherein a rigid pipe is receivable within said through-opening of the fitting; a split ring receivable within said shell and having a pair of flanges projecting radially from opposite ends thereof and through said radial opening of said shell; and a closure element engaging said flanges for closing the ring about the end portion of the pipe and securing the pipe end portion and ring against relative axial movement; said shell engaging said ring enabling the ring to provide an axial stop for restraining movement of the fitting axially away from the pipe. 2. A joint restraint according to claim 1, wherein said ring has a plurality of serrations for engaging the pipe and securing the ring to the pipe. 3. A joint restraint according to claim 1, wherein said shell includes at least one radially inwardly directed flange for engaging the ring. 4. A joint restraint according to claim 3, wherein said shell flange is annular about the axial opening of the shell which receives the pipe end portion. 5. A joint restraint according to claim 1, wherein said arms lie on opposite sides of said shell, said radial opening being located substantially medially between said arms. 6. A joint restraint according to claim 1, wherein said closure element includes a bolt extending between and cooperable with the flanges to tighten the ring about the pipe. 7. A joint restraint according to claim 1, wherein the radial opening opens axially through an end of said shell opposite said entry opening enabling axial insertion of the ring into the shell and the flanges into the radial opening. 8. A joint restraint according to claim 1, wherein said shell includes at least one radially inwardly directed flange about the entry opening for engaging the ring, said shell being annular and said arms lying on opposite sides of said shell, said radial opening being located substantially medially between said arms. 9. A joint restraint according to claim 8, wherein said ring has a plurality of serrations for engaging the pipe and securing the ring to the pipe. 10. A joint restraint according to claim 8, wherein the radial opening opens axially through an end of said shell opposite said entry opening enabling axial insertion of the ring into the shell and the flanges into the radial opening. 11. A joint restraint according to claim 1, wherein said arms lie on generally diametrical opposite sides of said shell and extend generally in a tangential direction. 12. A joint comprising: a fitting having an axially-oriented opening and a pair of radially outwardly projecting external lugs; a rigid pipe received in said axially-oriented opening of said fitting; an annular shell having an axial through-opening in axial registration with said axially-oriented opening of said fitting and disposed about the pipe, a pair of arms projecting laterally from said shell and engaging said lugs on sides of said lugs facing axially away from the shell, and a radial opening; a split ring within the shell about said pipe; and means for closing the split ring about the pipe and securing the ring and pipe to one another against relative axial movement; said ring engaging said shell for restraining the relative axial movement of said fitting and said pipe. 13. A joint according to claim 12 wherein said closing means includes a pair of laterally projecting flanges and a bolt extending between and cooperable with the flanges to close the ring about the pipe. 14. A joint according to claim 12, wherein said shell includes at least one radially inwardly directed flange thereabout for engaging the ring. 15. A joint according to claim 12, wherein said arms lie on opposite sides of said shell, said radial opening being located substantially medially between said arms. 16. A joint according to claim 12, wherein said closing means includes a pair of laterally projecting flanges and a bolt extending between and cooperable with the flanges to close the ring about the pipe, the radial opening through an end of said shell enabling insertion of the ring into the shell and the flanges into the radial opening. 17. A joint according to claim 12, wherein said shell includes at least one radially inwardly directed flange engaging the ring, said shell being annular and said arms lying generally on opposite diametrical sides of said shell, said radial opening being located substantially medially between said arms. 18. A joint according to claim 12, wherein said shell includes at least one radially inwardly directed flange engaging the ring, said shell being cylindrical and said arms lying generally on opposite diametrical sides of said shell and extending generally tangentially thereof. 19. A joint according to claim 18, wherein said shell and said fitting lie in axial alignment with one another, said arms engaging said lugs on sides thereof facing axially away from said shell, said radial opening being circumferentially spaced about said shell from said arms.
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이 특허에 인용된 특허 (4)
Cogdill Bobby J. (Waynesville NC) Trantham Richardson J. (Clyde NC), Hose construction and method of making the same.
Goodman, Craig M.; Marshall, Dori; Hitzler, Dan E., Aircraft valve assemblies including clamp-specific baulking tab arrays and methods for the manufacture thereof.
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