Patents Assigned to Northern Vibrator Manufacturing Ltd.
  • Method and apparatus for creating a path through particulate material
    Patent number: 4360276
    Abstract: Apparatus for creating a path through particulate material such as granular or pulverulent material in a storage container is lowerable into the material in the container and includes an upper part attachable to a lowering device and a lower part. The lower part has a downwardly and inwardly inclined outer wall extending to a lower central area, a vibrator for vibrating the outer wall along a substantially vertical axis, and an air nozzle at the lower central area to which air can be supplied.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: November 23, 1982
    Assignee: Northern Vibrator Manufacturing Ltd.
    Inventor: James M. Jack