Locking device for pipe elements

Claim 1

A device for locking a joint between two pipe elements which may have an angular deviation between their axes, so as to preclude axial separation of the pipe elements throughout the periphery of the pipe elements while allowing the pipe elements to move toward each other, comprising means defining a first abutment projection integral with an outer surface of a first of said pipe elements, means defining a second abutment projection integral with an outer surface of a second of said pipe elements, means defining a member of revolution which surrounds the joint and comprises adjacent one end of the member an inner shoulder and at an opposite end of the member means for axially supporting the second abutment projection, and annular circumferentially substantially continuous spacer means mounted on said first pipe element and having an axial thickness which is adjustable along the periphery of the spacer means in accordance with the angular deviation between the two pipe elements and being axially interposed between and engaging the first abutment projection and the inner shoulder to be effective as a support precluding axial separation of the pipes in an even manner around the periphery of the abutment projection and the inner shoulder.

Claim 2

A device for locking a joint between two pipe elements which may have an angular deviation between their axes, so as to preclude axial separation of the pipe elements throughout the periphery of the pipe elements while allowing the pipe elements to move toward each other, comprising means defining a first abutment projection integral with an outer surface of a first of said pipe elements, means defining a second abutment projection integral with an outer surface of a second of said pipe elements, means defining a member of revolution which surrounds the joint and comprises adjacent one end of the member an inner shoulder and at an opposite end of the member means for axially supporting the second abutment projection, and annular circumferentially substantially continuous spacer means mounted on said first pipe element and having an axial thickness which is adjustable along the periphery of the spacer means in accordance with the angular deviation between the two pipe elements and being axially interposed between and engaging the first abutment projection and the inner shoulder to be effective as a support precluding axial separation of the pipes in an even manner around the periphery of the abutment projection and the inner shoulder.

Claim 6

A device for locking a joint between two pipe elements which may have an angular deviation between their axes, so as to preclude axial separation of the pipe elements throughout the periphery of the pipe elements while allowing the pipe elements to move toward each other, comprising means defining a first abutment projection integral with an outer surface of a first of said pipe elements, means defining a second abutment projection integral with an outer surface of a second of said pipe elements, means defining a member of revolution which surrounds the joint and comprises adjacent one end of the member a first inner shoulder and at an opposite end of the member a second inner shoulder, and annular circumferentially substantially continuous spacer means mounted on said first pipe element and comprising two split rings each of which rings has a first plane face normal to the axis of the ring and a second plane face inclined relative to the first face, the two second faces of the rings being in contact with each other whereby the axial thickness of said spacer means is adjustable along the periphery of the spacer means in accordance with the angular deviation between the pipe elements, the first inner shoulder being parallel to the second inner shoulder and perpendicular to the axis of the member, the second shoulder axially supporting the second abutment projection in an even manner around the periphery of the second pipe element and the first shoulder bearing axially against and supporting the first plane face of one of the two rings in an even manner around the periphery of the first pipe element and the first plane face of the other of the two rings bearing against and supporting the first abutment projection in an even manner around the periphery of the first pipe element.

Claim 7

A device for locking a joint between two pipe elements which may have an angular deviation between their axes, so as to preclude axial separation of the pipe elements throughout the periphery of the pipe elements while allowing the pipe elements to move toward each other, comprising means defining a first abutment projection integral with an outer surface of a first of said pipe elements, means defining a second abutment projection integral with an outer surface of a second of said pipe elements, means defining a member of revolution which surrounds the joint and comprises adjacent one end of the member a first inner shoulder and at an opposite end of the member a second inner shoulder, and annular circumferentially substantially continuous spacer means mounted on said first pipe element and comprising two split rings each of which rings has a first plane face normal to the axis of the ring and a second plane face inclined relative to the first face, the two second faces of the rings being in contact with each other whereby the axial thickness of said spacer means is adjustable along the periphery of the spacer means in accordance with the angular deviation between the pipe elements, the first inner shoulder being parallel to the second inner shoulder and perpendicular to the axis of the member, the second shoulder axially supporting the second abutment projection in an even manner around the periphery of the second pipe element and the first shoulder bearing axially against and supporting the first plane face of one of the two rings in an even manner around the periphery of the first pipe element and the first plane face of the other of the two rings bearing against and supporting the first abutment projection in an even manner around the periphery of the first pipe element.

Claim 8

A device for locking a joint between two pipe elements which may have an angular deviation between their axes, so as to preclude axial separation of the pipe elements throughout the periphery of the pipe elements while allowing the pipe elements to move toward each other, comprising means defining a first abutment projection integral with an outer surface of a first of said pipe elements, means defining a second abutment projection integral with an outer surface of a second of said pipe elements, means defining a member of revolution which surrounds the joint and comprises adjacent one end of the member a first inner shoulder and at an opposite end of the member a second inner shoulder and annular circumferentially substantially continuous spacer means comprising a split ring which is mounted on said first pipe element and has a first plane face perpendicular to the axis of the ring and a second plane face which is inclined relative to the first face, the first shoulder being perpendicular to the axis of the member and the second shoulder being inclined relative to the first shoulder, the first shoulder axially supporting the second abutment projection in an even manner around the periphery of the second pipe element and the second shoulder bearing behind and supporting the second face of the ring in an even manner around the periphery of the first pipe element and the first face of the ring bearing axially against the first abutment projection in an even manner around the periphery of the first pipe element whereby the axial thickness of said spacer means is adjustable along the periphery of the spacer means in accordance with the angular deviation between the pipe elements.

Claim 9

A device for locking a joint between two pipe elements which may have an angular deviation between their axes, so as to preclude axial separation of the pipe elements throughout the periphery of the pipe elements while allowing the pipe elements to move toward each other, comprising means defining a first abutment projection integral with an outer surface of a first of said pipe elements, means defining a second abutment projection integral with an outer surface of a second of said pipe elements, means defining a member of revolution which surrounds the joint and comprises adjacent one end of the member a first inner shoulder and at an opposite end of the member a second inner shoulder and annular circumferentially substantially continuous spacer means comprising a split ring which is mounted on said first pipe element and has a first plane face perpendicular to the axis of the ring and a second plane face which is inclined relative to the first face, the first shoulder being perpendicular to the axis of the member and the second shoulder being inclined relative to the first shoulder, the first shoulder axially supporting the second abutment projection in an even manner around the periphery of the second pipe element and the second shoulder bearing behind and supporting the second face of the ring in an even manner around the periphery of the first pipe element and the first face of the ring bearing axially against the first abutment projection in an even manner around the periphery of the first pipe element whereby the axial thickness of said spacer means is adjustable along the periphery of the spacer means in accordance with the angular deviation between the pipe elements.