Patents by Inventor Bo Georg Hammarqvist

Bo Georg Hammarqvist 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).

  • Patent number: 4091941
    Abstract: An apparatus for handling moulds or ingot moulds prior to and after casting or teeming, such as transfer between knocking-out stripping, preparing, forming and casting or teeming stations, the moulds or ingot moulds being brought together into a casting or teeming unit containing a plurality of moulds or ingot moulds, the casting or teeming unit being transferred between the various stations on a car. The casting or teeming units at the various stations are pushed off the car over onto a station or are pulled over onto the car from the station by means of pushing and pulling device which constitute part of the car.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: May 30, 1978
    Assignee: AB Norbergs Mekaniska Verkstad
    Inventor: Bo Georg Hammarqvist
  • Patent number: 4081089
    Abstract: The invention relates to an arrangement for handling and preparation of base plates and the like such as, for example, casting molds, especially after and before casting, in which the arrangement comprises at least two cooperating, crossing transport lines. Each transport line consists of a fixed bed for supporting the base plates or casting molds and there is at least one transport car in each transport line, the transport car being provided with raisable and lowerable means arranged to carry the base plates as they are transported along the transport line and from one transport line to the other.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: March 28, 1978
    Assignee: AB Norbergs Mekaniska Verkstad
    Inventor: Bo Georg Hammarqvist