Patents by Inventor Ossi Niemi

Ossi Niemi 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).

  • Mixing apparatus
    Patent number: 4302110
    Abstract: A concrete mixing apparatus with a stationary mixing container and an upper circular cover plate arranged to rotate in relation to said container. The apparatus is provided with a machinery for rotating said cover plate and with a discharge channel for one or several materials. The discharge channel is arranged above the cover plate in substantially coaxial relation thereto. The apparatus further comprises a filling channel, the lower end of which is fastened onto said cover plate and the upper end of which is arranged in substantially coaxial relation to said discharge channel.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: November 24, 1981
    Assignee: Flowcon Oy
    Inventor: Ossi Niemi