Patents by Inventor Ahti Leinvuo

Ahti Leinvuo 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).

  • Procedure for forming cocks closable by freezing, belonging to a liquid batch handling unit, and handling unit set up according to the procedure
    Patent number: 4766922
    Abstract: The invention concerns a procedure for forming cocks closable by freezing, belonging to a liquid batch handling unit, and a liquid handling unit set up in accordance with the procedure. The unit consists of two bodies (1,2) placed against each other, the cocks being located between their faces and one of them (2) comprising the flow passages leading to the cock points and the other body (1), which is connected to a refrigerator, being provided with electric heaters located at the cock points and with the aid of which the cocks can be opened and closed.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: August 30, 1988
    Assignee: Fluilogic Systems Oy
    Inventors: Niilo Kaartinen, Henrik Johansson, Ahti Leinvuo, Paul Collander