Forcible Away From Common Surface Patents (Class 241/127)
Pivotally mounted for forced movement (Class 241/128)
Centrifugally urged toward contact (Class 241/131)
With means in addition to weight of plural surfaces for urging surfaces toward contact (Class 241/132)
Rotors independently forcible away from common surface (Class 241/133)
  • Pulverizer with caster roller assembly
    Patent number: 4072276
    Abstract: An apparatus is provided for pulverizing material into comminuted particles in which at least three rollers are mounted for rotation and maintained in contact with the material on a grinding ring. The rollers are suspended in a manner to allow the rollers to swivel about respective vertical axes perpendicular to their respective axes of rotation.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: February 7, 1978
    Assignee: Foster Wheeler Energy Corporation
    Inventor: Chester J. Romanowski
  • Comminution device
    Patent number: 4063687
    Abstract: A comminution device in which a crushing mass having an outer surface of helical configuration is mounted on a rotary support which rolls the crushing mass around the interior surface of a crushing chamber. The helical surface provides improved comminution. The rotary support is a flexible wire rope which permits limited radial movement of the crushing mass, allowing centrifugal force to aid the comminution. The crushing mass is mounted at about the midpoint of the wire rope, allowing gyroscopic forces to further assist the comminution.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: December 20, 1977
    Assignee: General Comminution Inc.
    Inventor: Laszlo L. Szego, deceased