Patents Assigned to Peggy Elizabeth Tolonen
  • Apparatus for grinding materials
    Patent number: 4997137
    Abstract: A transfergrinder device for grinding a feed material. The transfergrinder device includes a grinding stator assembly and a grinding rotor assembly disposed generally axially concentric within the grinding stator assembly. The grinding stator assembly and grinding rotor assembly are maintained in generally spaced relationship from each other to define a grinding plane therebetween.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: March 5, 1991
    Assignee: Peggy Elizabeth Tolonen
    Inventor: Eric O. Tolonen