Non-detachable press fit arrangement between a fitting and an end portion of a metal pipe
AssigneeFranz Viegener II GmbH & Co. KG
InventorWalter Viegener
Life of this patent
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Abstract
In a non-detachable press fit arrangement between an end portion of a metal pipe and a socket of a fitting, the socket defines an interior space and is formed with an annular anchoring groove which faces the interior space for receiving a sealing ring. The press fit arrangement includes at least one holding element secured to the socket and cold formed together with the socket, whereby the holding element at least partially penetrates the material of the end portion of the metal pipe to realize a positive fit with the metal pipe.
Claims21
In a non-detachable press fit arrangement between an end portion of a metal pipe and a crimpable socket of a fitting, with the socket defining an interior space and being formed with an annular anchoring groove facing the interior space for receiving a sealing ring, said press fit arrangement comprising at least one holding element resiliently secured to the socket in a receiving groove and cold formed together with the socket, said holding element has a material penetrating component formed by a plurality of cutting arcuate projections pointing in the direction of the anchoring groove and whose ends penetrate the metal pipe after the socket is crimped by cold forming, and wherein the annular anchoring groove is located in front of and separate from the receiving groove relative to the pipe end.
Dependencies are inferred from the claim text.