Pipe coupling
AssigneeCoupling Technology Limited
InventorPaul Anthony Davidson
Life of this patent
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Abstract
Disclosed is a pipe coupling for connecting the ends of two tubular conduits comprising: an annular gasket arrangement comprising: an annular ring for straddling two such conduit ends, wherein the annular ring is formed with a pair inwardly facing annular recesses; and a pair of annular sealing elements each located in a corresponding one of the annular recesses and each for sealing around a corresponding one of two such conduit ends; and a casing arrangement comprising a plurality of casing elements connected together by fixing elements so as to surround the gasket arrangement, wherein the casing arrangement comprises a pair of radially inwardly extending projection arrangements, each projection arrangement for engaging an annular groove formed in each such conduit end.
Claims27
A pipe coupling for connecting the ends of two tubular conduits comprising:
- an annular gasket arrangement comprising:
- an annular ring for straddling two such conduit ends, wherein the annular ring is formed with a pair inwardly facing annular recesses;
- and
- a pair of annular sealing elements each located in a corresponding one of the annular recesses and each for sealing around a corresponding one of two such conduit ends;
- and
- a casing arrangement comprising a plurality of casing elements connected together by fixing elements so as to surround the gasket arrangement, wherein the casing arrangement comprises a pair of radially inwardly extending projection arrangements, each projection arrangement for engaging an annular groove formed in each such conduit end.
A pipe coupling for connecting the ends of two tubular conduits comprising:
- an annular gasket arrangement for straddling and for forming a seal against two such conduit ends;
- a casing arrangement for surrounding the gasket arrangement, which casing comprises a pair of radially inwardly extending projection arrangements, each projection arrangement for engaging an annular groove formed in each such conduit end;
- and
- a fixing sleeve slideably mountable around the casing arrangement.
21-49. (canceled)
A pipe coupling for connecting the ends of two tubular conduits comprising:
- a gasket arrangement;
- a casing arrangement comprising a pair of radially inwardly extending projection arrangements, each projection arrangement for engaging an annular groove formed in each such conduit end and comprising a plurality of casing elements connected together by fixing elements so as to be clamped around the gasket arrangement;
- and
- a strip of corrugated ribbon locatable between the casing arrangement and each such pipe end with the corrugations extending in a substantially longitudinal direction and deformable into a toothed ring on clamping of the casing arrangement around the gasket arrangement.
52-57. (canceled)
A pipe coupling for connecting the ends of two tubular conduits comprising:
- an annular gasket arrangement comprising:
- an annular ring for straddling two such conduit ends, wherein the annular ring is formed with a pair of inwardly facing annular recesses and wherein such coupling ends are slideable within the annular ring;
- and
- a pair of annular sealing elements each located in a corresponding one of the annular recesses and each for sealing around a corresponding one of two such conduit ends;
- and a casing arrangement, surrounding the gasket arrangement and comprising a pair of radially inwardly extending projection arrangements, each projection arrangement for engaging an annular groove formed in each such conduit end and wherein each projection arrangement is slideable longitudinally within such an annular groove.
A pipe coupling for connecting the ends of two tubular conduits comprising:
- an annular gasket arrangement for straddling and for forming a seal against two such conduit ends;
- a casing arrangement for surrounding the gasket arrangement, which casing comprises a pair of radially inwardly extending projection arrangements, each projection arrangement for engaging an annular groove formed in each such conduit end;
- and
- a fixing sleeve slideably mountable around the casing arrangement, wherein the casing arrangement is provided with a bevelled end portion at each end, such that the diameter of the casing arrangement tapers towards the conduits to which it is fitted.
Dependencies are inferred from the claim text.