Patents Assigned to A. Tonolli & C. S.p.A.
  • Method for scrubbing the flues and for recovering _the salts in a process for the production of secondary aluminum
    Patent number: 4368070
    Abstract: The invention relates to a process which makes possible the scrubbing of the flues and the recovery of the salts as contained in the oven slags for the remelting of aluminum scraps with a saline flux, by washing the slags with water and using the brine thus obtained for scrubbing the flues, until obtaining the saturation and the separation of the salt to be recycled as a flux.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: January 11, 1983
    Assignee: A. Tonolli & C.S.p.A.
    Inventor: Pierluigi Fracchia
  • Process for obtaining skeins of wire rod of a weight which is a multiple of that of a wirebar
    Patent number: 4018376
    Abstract: A process for obtaining skeins of wire rod of indefinite length comprising butt welding under axial pressure two successive wirebars already rough shaped and having their ends cropped with shears or another device, and then hot rolling until the final required wire rod size is obtained.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: April 19, 1977
    Assignee: A. Tonolli & C. S.p.A.
    Inventor: Raffaele Capetti