Patents Assigned to Roy Asserback
  • Reinforced concrete pile and a method of manufacturing such a pile
    Patent number: 3930373
    Abstract: In a concrete pile the axially running bars of the reinforcing structure are attached to an end collar of the pile by threaded connectors screwed into the collar and each enclosing the threaded end of a reinforcing bar.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: January 6, 1976
    Assignee: Roy Asserback
    Inventor: Lorentz Wahman