Patents by Inventor Heikki Visa

Heikki Visa 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).

  • Equipment for raising an exchange platform or container to a horizontal position above the level of the transport position
    Patent number: 4344731
    Abstract: Equipment for loading an exchange platform onto a vehicle includes a rear frame pivotally mounted to the rear of the vehicle and a middle frame pivotally mounted on the rear frame. An angle piece has a horizontal portion pivotally mounted to the middle frame and a vertical portion with a grasping device at its upper end. A cylinder for operating the loading equipment is connected between the vehicle and the middle frame. In addition, a link arm and/or a second cylinder is provided between the vehicle and either the rear or middle frames to enable the exchange platform to be raised above the vehicle in a horizontal position.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: August 17, 1982
    Assignee: Oy Partek AB
    Inventors: Heikki Visa, Heikki Laitinen
  • Apparatus for moving an exchangeable platform or a container on to and off of a tipping frame of a lorry, trailer, or the like
    Patent number: 4058231
    Abstract: Method and apparatus for unloading a platform from a lorry having a tipping frame, the tipping frame having an endless belt or chain which in turn has an elongated chain connected thereto. The chain has hook and wedge member thereon adapted to connect to pull bars on the platform to lift the platform onto the lorry. For lowering, a counter element is provided on the endless belt or chain for pushing the platform off the lorry.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: November 15, 1977
    Assignee: Autolava Oy
    Inventors: Heikki Visa, Ossi Rantala, Antti Risti