Patents Assigned to Ing. Haaga Werkzeugbau KG
  • Sweeping machine and sweeping lip
    Patent number: 6698055
    Abstract: A sweeping machine of the type having two rotating brushes which in operation sweep material into a sweeping lip assembly is provided. In order to prevent damages to the sweeping lip, the forward area which in use contacts the ground during sweeping operations is configured upwardly elasticly deformable by weakening slots provided in reinforcement structure thereof and/or by different elastic characteristics of molded plastic material forming the sweeping lip.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 2, 2004
    Assignee: Ing. Haaga Werkzeugbau KG
    Inventor: Hermann Haaga
  • Sweeping machine and sweeping lip and method of making same
    Publication number: 20010005916
    Abstract: A sweeping machine of the type having two rotating brushes which in operation sweep material into a sweeping lip assembly is provided. In order to prevent damages to the sweeping lip, the forward area which in use contacts the ground during sweeping operations is configured upwardly elasticly deformable by weakening slots provided in reinforcement structure thereof and/or by different elastic characteristics of molded plastic material forming the sweeping lip.
    Type: Application
    Filed: December 11, 2000
    Publication date: July 5, 2001
    Applicant: Ing. Haaga Werkzeugbau KG.
    Inventor: Hermann Haaga
  • Sweeping machine
    Patent number: 5896611
    Abstract: A sweeping machine has two circular brooms at the front region of a housing rotating towards the inside in opposing directions. Inside the housing and adjoining a sweeper plate across which the circular brooms sweep, a cylinder broom sweeping in a direction towards the front region is arranged. The cylinder broom picks up the refuse swept by the circular brooms and sweeps up dusty refuse in particular from the ground and throws both of these together backwards into the housing into a refuse container.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: April 27, 1999
    Assignee: Ing. Haaga Werkzeugbau KG
    Inventor: Hermann Haaga