Patents by Inventor Frans Jan Tieman

Frans Jan Tieman 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).

  • Braille cell and display comprising a plurality of braille cells, as well as a method for controlling a plurality of pins of a braille cell
    Patent number: 6217338
    Abstract: A Braille cell having a pressure-exerting member in the form of a bar or leaf spring, of which one end can be displaced with the aid of a first displacement mechanism in a direction that is perpendicular to a longitudinal direction. One end of the pressure-exerting member is configured for placement in either a first or second position. In the first position, the pressure-exerting member does not place touch pins in a high position, while in the second position, the pressure-exerting member does place the touch pins in a high position. A second displacement mechanism is configured to displace the end of the pressure-exerting member, after the end has been disposed in one of the first or second positions, in the longitudinal direction, in such a manner that a touch pin is placed or is not placed in the high position. This allows a touch pin to be fixed in the correct position with respect to the touch surface of the touch board in a very simple manner.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: April 17, 2001
    Assignee: Turn-out N.V.
    Inventor: Frans Jan Tieman