Patents by Inventor Mika Tapio Vidgren

Mika Tapio Vidgren 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).

  • Valve for use in connection with an inhaler apparatus
    Patent number: 5724962
    Abstract: A valve for use in connection with aerosol spacers to be mounted on a metered dose inhaler, characterized in that the valve comprises a frame portion (1) one end of which can be attached to the chamber portion of known aerosol spacers and its other end constitutes a mouthpiece having an air outlet aperture (4) for expiratory air and an air inlet aperture (6) for the air to be inhaled via the inhaler chamber, and a flap (3) which is to be fitted inside the mouthpiece and slides freely in the direction of the longitudinal axis of the mouthpiece so that, upon inhalation, it will open the air inlet aperture (6) and close the air outlet aperture (4) and upon exhalation, it will close the air outlet aperture (4), and upon exhalation, it will open the air outlet aperture (4) and close the air inlet aperture (6).
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: March 10, 1998
    Assignee: Orion-Yhtyma Oy
    Inventors: Mika Tapio Vidgren, Tapio Antti Kaplas