Patents Assigned to Lund Hydromaskin AB
  • Ram block
    Patent number: 4350214
    Abstract: A ram block for driving piles and the like into the ground has a lead mass (15) which is enclosed in an inner cylinder (10) and in the space between this and an outer cylinder (11). The cylinders are interconnected at the lower end of the ram block where a cap (14) is arranged in the inner cylinder.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: September 21, 1982
    Assignee: Lund Hydromaskin AB
    Inventor: Kjell G. Landaeus