With Means In Addition To Weight Of Plural Surfaces For Urging Surfaces Toward Contact Patents (Class 241/132)
  • Hydraulic loading system for ball and ring pulverizers
    Patent number: 6609669
    Abstract: An hydraulic loading assembly for ball and ring coal pulverizers has a plurality of compression assemblies connected to a common hydraulic controller for exerting equal pressure simultaneously on each of the compression assemblies. The compression assemblies each have a hydraulic cylinder and piston located above and connected to a non-threaded rod which is in turn located above and connected to a compression spring exerting force on the top grinding ring of the pulverizer.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: August 26, 2003
    Assignee: The Babcock & Wilcox Company
    Inventors: Michael E. Rakocy, Rodney C. Pifer, David P. Houser
  • 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
  • Hydraulically loaded pulverizer journal
    Patent number: 4002299
    Abstract: A control system for the hydraulic loading of the grinding rolls of a pulverizing mill, including a feedback servo system designed to incorporate a spring rate characteristic into the hydraulic loading of the grinding rolls.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: January 11, 1977
    Assignee: Combustion Engineering, Inc.
    Inventor: Clemens John Skalka