Patent ID: 8840117

Claim:
A sealing element ( 1 ), including an elastic tapered washer ( 10 ) and a ductile casing ( 18 ) surrounding the washer, and having seal support portions on an outer circumference and an inner circumference, wherein the casing ( 18 ) includes a continuous strip ( 19 ) in front of one face of the washer, and curved edges ( 20 , 21 ) at the support portions, where the curved edges include ends ( 24 , 25 ) extending in front of a portion of a face opposite the elastic washer ( 10 ), and in that it includes two supporting washers ( 27 , 28 ) housed respectively between the elastic washer and the ends of the curved edges, and wherein at least one of the supporting washers has a bead ( 29 , 30 ) pointing away from the elastic washer and against the end ( 24 , 25 ) of the curved edge ( 20 , 21 ).