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AssigneeNovopress GmbH Pressen und Presswerkzeuge & Co. KG
InventorXuan Luong Nghiem
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The invention relates to a process for connecting a pipe (2, 31) in the region of its pipe end to a pipe coupling (1), comprising at least one support sleeve (3) with engagement elements (5, 65, 67, 124), in which context the pipe (2, 31) and the support sleeve (3) are first pushed into one another, the pipe (2, 31) then being pressure deformed, thereby bringing about a form-fitting connection with the engagement elements (5, 65, 67, 125) and bringing about a sealing relationship with sealing surfaces (7, 66, 68, 122), mutually adjoining each other in axial direction. The process is characterised in that an axial force, bearing on the sealing surfaces (7, 66, 68, 122) is applied to the pipe (2, 31) by way of a spring device (20, 52) deriving support from the pipe coupling (1) and that a facility for expansion is provided for the pipe (2, 31) on the side of the engagement elements (5, 65, 67, 125) oriented towards the pipe.
Process for connecting a pipe (2, 31) in the region of its pipe end to a pipe coupling (1), comprising at least one support sleeve (3) with an engagement means (5, 65, 67, 124), wherein the pipe (2, 31) and the support sleeve (3) are first pushed into one another, the pipe (2, 31) then being pressure deformed, thereby bringing about a form-fitting connection with the engagement means (5, 65, 67, 125) and bringing about a sealing relationship with sealing surfaces (7, 66, 68, 122), mutually adjoining each other in axial direction, characterized in that an axial force, bearing on the sealing surfaces (7, 66, 68, 122) is applied to the pipe (2, 31) by a pressure sleeve acted on by a spring means (20, 52) radially deformed by said pressure sleeve and deriving support from the pipe coupling (1), said spring means creating said axial force due to said radial deformation.
Connection between a pipe (2, 31) in the region of its pipe end and a pipe coupling (1), comprising at least one support sleeve with an engagement means (5, 65, 67, 124), the pipe (2, 31) entering into a form-fitting connection with the engagement means (5, 65, 67, 125), due to plastic deformation, bringing about a sealing of the sealing surfaces (7, 66, 68, 122), adjoining one another in axial direction, characterized in that at least one spring means (20, 52) is provided, deriving support from the pipe coupling (1), said spring means radially deformed by a pressure sleeve, and said pressure sleeve acted on by said spring means to generate an axial force which bears on the sealing surfaces (7, 66, 68, 122) due to said radial deformation.
Pipe coupling (1) for the connection to a pipe (2, 31), comprising at least one support sleeve (3) with at least one engagement means (5, 65, 67, 125), characterized in that at least one spring means (52) is provided, deriving support from the pipe coupling (1), said spring means radially deformed by a pressure sleeve adapted to be brought into co-active engagement with a pipe (2, 31) adapted to be pushed onto the support sleeve (3) by said pressure sleeve due to said radial deformation of said spring means.
Dependencies are inferred from the claim text.