Patents by Inventor Hugo Lievens

Hugo Lievens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Feed-through element for a vacuum apparatus
    Patent number: 4790165
    Abstract: The invention relates to a feed-through element for application in a vacuum apparatus for the continuous feeding through of wire-shaped material to be treated at least made up of a casing and a sealing element set up therein that is in contact with the surface of the wire-shaped material during feeding through, whereby the sealing element is formed by a drawing die (20) and where y the casing is formed by a holder (21 ; 22) for the drawing die (20), at least a part of the holder (21 ; 22) being connected in a gastight way to a partition wall of the vacuum apparatus (1) and whereby the drawing die (20) and the holder (21 ; 22) act together in sealing relation.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: December 13, 1988
    Assignee: N.V. Bekaert S.A.
    Inventors: Hugo Lievens, Wilfried Coppens
  • Feed-through element for a vacuum apparatus
    Patent number: 4787227
    Abstract: The invention relates to a feed-through element for application in a vacuum apparatus for the continuous feeding through of material with wire character to be treated at least made up of a casing and a sealing element set up therein that is in contact with the surface of the material with wire character during feeding through, whereby the sealing element is formed by a split drawing die (20), whereby the casing is formed by a holder (21;22) for the split drawing die (20), whereby the split drawing die (20) being set up with play inside the holder (21;22) and at least a resilient means (28) being inserted in the space between the drawing die (20) and the holder (21;22) and whereby a part of the holder (21;22) being connected in a gastight way to a partition wall of the vacuum apparatus (1).
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: November 29, 1988
    Assignee: N.V. Bekaert S.A.
    Inventors: Hugo Lievens, Wilfried Coppens
  • Rubber adherable steel reinforcing elements with composite surface coating
    Patent number: 4704337
    Abstract: A steel element for reinforcing a rubber article comprises a brass layer and at least one additional outer film of metal or metal alloy selected from the group containing Fe, Ni, Mn, Cr, Mb, Va, Ti, Zi, Nb, Ta, Hf and W.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: November 3, 1987
    Inventors: Wilfried Coppens, Hugo Lievens
  • Ternary brass alloy coated steel elements for reinforcing rubber
    Patent number: 4677033
    Abstract: A steel reinforcing element for vulcanized rubber articles having a thermodiffused alloy coating consisting of from about 59.3% to about 70.7% copper, from about 0.2% to 10.4% manganese and with the balance being zinc.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: June 30, 1987
    Inventors: Wilfried Coppens, Hugo Lievens