Patent ID: 11904504
Assignee: AFROS S.P.A.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 27:
28. High-pressure mixing device according to claim 1, wherein said elastic or elasto-plastic sealing element comprises on the outer surfaces thereof recess zones and relief zones, with one or two or four suitable triangle-shaped, triangle-bevelled or trapezoidal cusps configured to increase a specific pressure of contacting and coupling said annular seat and to increase hydraulic sealing action towards the surface of the pass-through hole of the head-body and hydraulic sealing action towards the surfaces of the cavity or cavities that house said elastic or elasto-plastic sealing element and hydraulic sealing action in the interaction with the cylindrical surface of the valve member, and wherein the external surface of said elastic or elasto-plastic sealing element comprises a transversal profile with one or two or four triangle- or trapezoidal-shaped cusps to increase a specific pressure on the surfaces of the cavity or cavities and better adapt by deformation to roughness and tolerances of the surface intended to receive said elastic or elasto-plastic sealing element.