Patents by Inventor Leena Viljanmaa

Leena Viljanmaa 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).

  • Apparatus for tentering hides
    Patent number: 4802348
    Abstract: An apparatus for tentering a hide including endless tentering mats (1, 2) driven along continuous upper and lower paths. The mats (1, 2) are pressed together over a portion of the continuous path by compressed air. A stretching assembly that grips the mat edges is used to continuously stretch the portions of the mats that are pressed together as they advance. An endless wire (5) is used to feed hides into the nip between the mats (1, 2).
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: February 7, 1989
    Inventor: Leena Viljanmaa