Patents by Inventor Lars Erik Karl Axel Tell

Lars Erik Karl Axel Tell 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).

  • Pulp grinder
    Patent number: 3973737
    Abstract: A pulp grinder comprises a grindstone having separate longitudinally spaced apart shafts mounted for rotation about a common axis and a grindstone structure mounted on the shafts. The grindstone structure includes a tubular shell having flanges at either end, and each shaft includes a flange that mates with a corresponding flange of the tubular shell. The flanges of the respective shafts are detachably connected to the flanges on the tubular shell, thereby facilitating removing the grindstone structure for repair or replacement without requiring disassembly of the shaft journals.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: August 10, 1976
    Assignee: Aktiebolaget Karlstads Mekaniska Werkstad
    Inventors: Sven-Erik Thorsell, Lars Erik Karl Axel Tell