Patents by Inventor Eduard Lijbrink

Eduard Lijbrink 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 and device for welding cylindrical elements to one another
    Patent number: 4103816
    Abstract: This invention relates to a device for welding cylindrical elements headwise to one another, whereby the welding is achieved by subjecting the cylindrical parts during the welding operation to a radial pressure near the welding area, which radial pressure may be directed inwardly or outwardly, whereas the device employed comprises an elastic ring to be arranged around the parts to be welded, said ring being accommodated in a sleeve in which a conduit for the supply of pressurized medium to the space between the ring and the sleeve is arranged.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: August 1, 1978
    Assignee: Ultra Centrifuge Nederland N.V.
    Inventors: Christiaan Gustaaf Adolf Scholtus, Eduard Lijbrink, Franciscus Alexander Theodorus Meijer, Antonius Ruiter