Patents by Inventor Marcel Holvoet

Marcel Holvoet 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).

  • Patent number: 4595441
    Abstract: A fabrication method for a disposable article and a disposable article for absorbing liquids.This method consists in cutting an impermeable foil (35) so as to form two strips (35a) and (35b) in the median zone of said foil along a tracing of a sequence of equal straight-line segments parallel to the longitudinal axis of the foil and staggered alternatingly on either side of said axis. The strip (35a) is laterally shifted by a distance slightly less than the distance between the segments located on either side of the axis XX'. The strip (35b) follows a path which is longer than that of the strip (35a) by the repeat of the cut-out. The strips (35a) and (35b) then are deposited on the absorbing portions (34) in such a manner that the permeable zone is located in the central region of said portion.The obtained sheath is cut into individual articles.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: June 17, 1986
    Assignee: Beghin-Say S.A.
    Inventors: Marcel Holvoet, Sem Mitrani, Raymond Pigneul
  • Patent number: 4589166
    Abstract: The invention relates to bleached cotton fibers and to absorbing materials for disposable articles. Its object is a process for shortening bleached cotton fibers consisting in(a) moving a fiber pad (1) between a trough-plate (2) and a feed roller (5) exerting a pressure between 0.3 and 0.6 MPa on the fiber pad,(b) pulling the fiber pad (1) beyond the trough-plate (2) bevelled at (9) so as to cut the long fibers constituting the fiber pad,(c) reconstituting the sheet.This process makes it possible to obtain fibers which can be used directly in diaper-making machines. The disposable articles so produced offer remarkable absorbing properties.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: May 20, 1986
    Assignees: Beghin-Say S.A., Nicolas Drouzas
    Inventor: Marcel Holvoet
  • Patent number: 4546027
    Abstract: Curled non-woven material formed of waves such as contiguous anti-nodes (9,10) of adjacent waves consist of small adjacent pads (11,12) located on the same side of the median plan (8) of the non-woven material.Use: Medical and surgical compressesFIG. 3.
    Type: Grant
    Filed: September 28, 1983
    Date of Patent: October 8, 1985
    Assignee: Beghin-Say S.A.
    Inventors: Marcel Holvoet, Bernard Picard