Patents by Inventor Antti P. Manninen

Antti P. Manninen 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: 6113860
    Abstract: An automatic cleaning equipment for solvents and volatile chemicals that enables the re-use of substances used in a laboratory. In a distillation vessel (1) there is a combination stirrer, which stirs, measures the temperature and acts as a base valve. In the combination stirrer, there is a tube made of inert material, there is a stirrer motor and a solenoid or motor operating the base valve. Inside the tube, there is a drive magnet rotating on an axle, and a temperature sensor. The actual paddle of the stirrer contains two magnets and is rotated outside the tube by the drive magnet. A filling vessel (2) is equipped with a separate base valve and overflow pipe. A fraction cutter (5) permits taking of a pre-fraction, a main fraction and post-fraction.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: September 5, 2000
    Assignee: Pam Solutions Ltd. Oy
    Inventor: Antti P. Manninen