Patent ID: 8316905

Claim:
An isostatic press, comprising: a pressure chamber for accommodating a pressure medium, the pressure chamber being enclosed by a radially prestressed force-absorbing body having an inner surface being in direct contact with a pressure medium when the pressure chamber is filled with pressure medium; a final prestressing device, provided around an outer envelope surface of the force-absorbing body for providing the final radial prestress in the force-absorbing body; and at least one tunnel-like passage running essentially over the length of said outer envelope surface of the force-absorbing body, the tunnel-like passage being defined by a groove in said outer envelope surface of the force-absorbing body and a portion of said prestressing device covering said groove, for conducting pressure medium to a point of detection if such medium has leaked out through said force-absorbing body from the pressure chamber to the outer envelope surface of the force-absorbing body.