Coupling device
AssigneeGeorg Fischer WAGA N.V.
InventorsMichel HULSEBOS, Arjen Cornelis van der Molen
Life of this patent
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Abstract
Coupling device (1) for a pipe (2), including a sleeve (13) for receiving the pipe (2) and at least one sealing member (5) to provide a seal between the sleeve (13) and the pipe (2), a pressure member (6) for applying a pressure to the sleeve (13) and to the pipe (2), and a grip element (4) extending along at least a part of the perimeter of the pipe (2), wherein the grip element (4) is provided with dents (9) pressed out of the plane of the grip element (4) adjacent to slit like openings (8) punched out of the grip element (4), wherein edges (8′) of the slit like openings (8) are subjected to a peening operation.
Claims9
A coupling device (1) for a pipe (2), comprising a sleeve (13) for receiving the pipe (2) and at least one sealing member (5) to provide a seal between the sleeve (13) and the pipe (2), a pressure member (6) for applying a pressure to the sleeve (13) and to the pipe (2), and a grip element (4) extending along at least a part of the perimeter of the pipe (2), wherein the grip element (4) is provided slit like openings (8) punched out of the grip element (4), the grip element (4) also being provided with dents (9) pressed out of a plane of the grip element (4) adjacent to the slit like openings (8) wherein edges (8′) of the slit like openings (8) having been subjected to a peening operation.
A method for fabricating a grip element (4) to be used in a coupling device (1) for a pipe (2), wherein slit like openings (8) are punched in a plate (7) and that in a forming process dents (9) are pressed out of the plane of the plate (7) adjacent to the openings (8), wherein prior to pressing the dents (9) out of the plane of the plate (7) edges (8′) of the slit like openings (8) are subjected to a peening operation.
A grip element (4) provided with dents (9) pressed out of the plane of the grip element (4) adjacent to slit like openings (8) punched out of the grip element (4), wherein edges (8′) of the slit like openings (8) are subjected to a peening operation.
Dependencies are inferred from the claim text.