Patents by Inventor Kent Jisbrant

Kent Jisbrant 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).

  • Method for manufacturing powder-filled tubular welding electrodes and a device for performing the method
    Patent number: 4629110
    Abstract: A method for manufacturing powder-filled tubular welding electrodes made from a continuously fed metallic gutter (16) in which the powder is introduced through a powder conveyor (17) opening in the gutter, which conveyor via a filling conduit (19) arranged inside the gutter will transfer the powder past a welding station (23) for welding the longitudinal edges (25) of the gutter which is formed to a tube (21). The purpose of the invention is to provide a method and a device for manufacturing powder-filled tubular welding electrodes without the powder damaged when it passes the welding station and that the filling of a tube is made under controlled conditions thus that the tube is completely filled concurrently with its feeding through the welding station.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: December 16, 1986
    Assignee: Werner Holmgren
    Inventors: Werner Holmgren, Kent Jisbrant