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US 12,257,653 B2Granted
Internal clamping and welding device
AssigneeSerimax Holdings
InventorGuy Bellanger
Life of this patent
Estimating the term…
Abstract
An internal clamping and welding device for joining tubes by their distal ends, the device comprising movement means in order to be moved inside the tubes, separate clamping means for cooperating with the inner surfaces of the tubes to be welded, and a welding head mounted so as to be able to both rotate about a longitudinal axis of the tubes, and also pivot in order to be tiltable relative to a support of the clamping means.
Claims17
An internal clamping and welding device for joining tubes by their distal ends, the device comprising:
- a support including a first clamping means to cooperate with the inner surface of a first tube, and a second clamping means to cooperate with the inner surface of a second tube;
- a welding head mounted to rotate about the support, so as to allow welding on at least a portion of the internal circumference of a junction area formed between the first tube and the second tube;
- and
- a pivot such that the welding head is tiltable relative to the longitudinal axis of the device,
- wherein the pivot is such that the welding head is rotated in a plane which is tiltable relative to a clamping plane of the first clamping means,
- wherein the pivot is obtained by the cooperation between a female ball joint and a male ball joint of the support, the female ball joint being connected to a crown of the welding head,
- wherein the female ball joint being in the shape of an open ring and the male ball joint in the shape of a closed ring, and
- wherein the female ball joint is configured to rotate annularly about the male ball joint.
5 more elements
Dependencies are inferred from the claim text.