Patents by Inventor Henry S. Johansson

Henry S. Johansson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Casting machine with reinforcement inserting device
    Patent number: 4168135
    Abstract: The present invention is directed to a device for introducing transversal reinforcement members in concrete bodies. In the casting of a concrete body, the casting machine and the concrete body move relative to each other during the casting operation. The present invention includes a storage member for reinforcement members with a device which feeds one reinforcement member at a time from the storage member to the surface of the concrete body. Pusher members are provided for positively introducing the reinforcement members into the concrete. The pusher members are connected to a knife which seals the opening through which the reinforcements members are introduced against upflow of concrete. Further, the present invention includes fin members to maintain the positioning of the reinforcement members in the concrete body.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: September 18, 1979
    Assignee: AB Strangbetong
    Inventors: Henry S. Johansson, Elis R. Karlsson