Patents by Inventor Matti Piipponen

Matti Piipponen 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: 5638625
    Abstract: An information board includes display bands having information printed thereon mounted on wind-up rolls, the wind-up rolls being mounted on an axle. A wind-up motor is used to rotate the axle when the motor is rotated in a first direction to wind-up a display band, thereby changing the information shown on the display band. The information board further includes a mechanism which changes the rotational motion of the motor, when rotated in the opposite direction, to axial motion for moving the axle axially. Coupling elements are mounted on the axle to engage a selected wind-up roll when the axle is moved in the axial direction.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: June 17, 1997
    Assignee: Baron Tech OY
    Inventors: Petri Ilkka, Matti Piipponen