Patents by Inventor Sven-Johan Person

Sven-Johan Person 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: 4993881
    Abstract: An arrangement for the transport of goods in bulk, such as cereal grain, by air flowing through a perforated base plate. The arrangements are provided in areas of the base plate (1) adjacent to the perforations (7) to impart to the air flowing through at that point a movement component running along the base plate (1), where a minimum quantity of air is required in order to transport the desired quantity of goods in bulk. The perforations (7) consist of elongated slots running across the direction of flow, that is to say the direction of feed. The slots are laterally displaced in relation to the slots in front of and behind them in an unsymmetrical manner, such that they form diagonal rows (B:C), the angles (.alpha.:.beta.) of which to the direction of transport (A) are considerably smaller in one lateral direction than in the other, when measured from one of the slots.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: February 19, 1991
    Inventor: Sven-Johan Person