Patent ID: 7044155

Claim:
Joint-type coaxial connection to connect/disconnect to/from each other two elements (A, B) defining respective coaxial tubular pipes inside which a respective fluid flows, said connection defining, when said elements (A, B) are connected to each other, two respective coaxial and substantially rectilinear paths for the passage of a respective fluid, said two coaxial rectilinear paths being able to be selectively opened/closed substantially simultaneously, one path (C 2 ) being internal and the other (C 1 ) being external, so as to connect pairs ( 11 a , 11 b ; 12 a , 12 b ) of tubular pipes, respectively an outer pipe and an inner pipe, each pair ( 11 a , 11 b ; 12 a , 12 b ) being present in a respective element (A, B) and including respective interception means in the disconnected condition, characterized in that the first element (A) has elastically contrasted connection/disconnection means consisting of at least a first toric crown ( 23 ) comprising at least a relative circumferential sealing element ( 45 ) and a second toric crown ( 21 ) comprising at least a relative circumferential sealing element ( 44 ); the second element (B) has respective thrust means cooperating with a relative elastically contrasted means ( 23 , 21 ) present in element (A), said thrust means comprising a male toric body ( 14 ) including at least a relative circumferential sealing element ( 50 ) and toric positioning body ( 27 ) including at least a respective circumferential sealing element ( 47 ), wherein, in the passage of connection/disconnection of said elements (A, B), when said toric thrust means ( 14 , 27 ) are acting in thrust/release on the relative elastically contrasted toric crowns ( 23 , 21 ), said circumferential sealing elements ( 44 , 47 , 45 , 50 ) are always operative so as to separate in a sealed manner, so that said respective fluids do not mix with each other, the inner pipes ( 12 a , 12 b ) from the outer pipes ( 11 a , 11 b ) and the outer pipes ( 11 a , 11 b ) from the part of the joint-type connection that is outside said outer pipe.