Patents Assigned to Ewid Limited
  • Patent number: 4650255
    Abstract: A tool is retained in a socket of a mineral cutter by an elastomeric element acting between the shank of the tool and the wall of the socket. The element is formed with corrugations that abut the wall of the socket and oppose the forces applied to the cutter of the tool.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: March 17, 1987
    Assignee: Ewid Limited
    Inventor: Otto R. Staroba