Patents by Inventor Pertti Gustavsson

Pertti Gustavsson 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).

  • Device for folding and making a hem on the end edges of a piece of cloth, e.g. a sheet
    Patent number: 4491079
    Abstract: A device for mechanically producing folded hems on the end edges of a piece of cloth detached from a length of fabric, and comprising(a) means for folding the forward end edge of the fabric, corresponding to the folded-in part of the hem to be, over the edge of a delivery member,(b) a gripper arranged on a coiler plate, which is advanced to the delivery edge to grip the fold of the fabric thus that the folded-in part is pressed to contact against the fabric,(c) means for rotating the coiler plate and the fabric fixed therto substantially half a turn, thus that at least a part of the width of the hem to be, is located on a second conveyor track for feeding the piece of cloth to a sewing machine,(d) a holding device pressing the hem against the second conveyor track, while the coiler plate is pulled out of the hem, and(e) an arresting device pressing an inner portion of the fabric against a first track and the delivery member a piece of cloth is detached, each one of the end edges of said piece of cloth which a
    Type: Grant
    Filed: December 15, 1982
    Date of Patent: January 1, 1985
    Assignee: Akab of Sweden AB
    Inventor: Pertti Gustavsson