Patents by Inventor Einar Lundmark

Einar Lundmark 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: 4717375
    Abstract: The invention relates to apparatus for folding diapers (1) and like articles, in which apparatus the article is advanced to a folding station by a conveyor (2). The folding station includes a driven folding roll (4) which co-acts with a counter roll (9) in a manner to feed the article to at least one driven transport roll (11,12). The transport roll guides the forward end (10) of the article (1) onto the cylindrical surface of a folding roll (16,17) co-acting with the folding roll (4) and intended, in a first folding phase, to be driven in a first transport direction through a given distance up towards the upper part of the folding roll and, during a second folding phase, to be driven in the opposite direction (A) and move the forward part of the article down from the aforementioned upper part.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: January 5, 1988
    Assignee: Mo och Domsjo Aktiebolag
    Inventor: Einar Lundmark
  • Patent number: 4675068
    Abstract: The invention relates to an arrangement for bonding an elastic ribbon (51) under tension to a plastics web (10) along a curved path thereon with the aid of an adhesive, in the manufacture of diapers or like articles. The ribbon is introduced into a given cured path on a cylindrical drum (15). Arranged in the given path are suction openings which communicate with a suction source and are effective in holding the ribbon firmly by suction along the whole of its length, therewith preventing the ribbon from sliding relative to the drum and the plastics web and from twisting or tilting on the drum despite the tension in the ribbon. Means (89) are provided for breaking the connection between the suction openings and the suction source as the suction openings pass the end point of a given distance on the drum (15).
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: June 23, 1987
    Assignee: Mo och Domsjo Aktiebolag
    Inventor: Einar Lundmark