Patents Assigned to Ziegler S.A.
  • Patent number: 4612215
    Abstract: A process and an installation for the continuous application of an oxidizable coating to a strip.The object of the invention is to provide an improvement in the recycle ratios and a savings of inert replenishing gas in an installation, in the enclosure which protects the draining means for controlling the coating, is recycled. To achieve this result, provision is made for the continuous purification of this gas by bringing it into contact with a reductive substance. If protective enclosure also contains the minimized flouring nozzles, zinc vapor can be introduced into the gas. This zinc vapor reacts with the oxygen and produces the nuclei by condensation.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: September 16, 1986
    Assignee: Ziegler S.A.
    Inventors: Jean-Paul Hennechart, Bernard Bramaud, Francois Prat
  • Patent number: 4502408
    Abstract: An installation for the continuous coating of a strip, especially for the galvanizing of sheet steel.The object of the invention is to improve the quality of the coating and the uniformity of its crystallization, especially for thin sheets with low coating thicknesses. To achieve this result, the minimized flouring nozzle or nozzles are placed in an enclosure from which the strip leaves through a narrow slit and in which is provided means for maintaining a protective atmosphere inside this enclosure.Preferably, this enclosure is one with an enclosure surrounding the draining means, and means for recycling the protective atmosphere and for purifying it with respect to oxygen are provided.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: March 5, 1985
    Assignee: Ziegler S.A.
    Inventors: Jean-Paul Hennechart, Bernard Bramaud, Francois Prat