Patents by Inventor Jan Jawecki

Jan Jawecki 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).

  • Elastic pad, especially under-rail
    Patent number: 6342287
    Abstract: An elastic under-rail pad, made of an elastic plastic or rubber, has two opposite sides. At least one of its opposite sides presents a surface which at least partly is defined at least approximately by a simple sinusoidal or cosinusoidal trigonometric function or by a composite sinusoidal and cosinusoidal trigonometric function, so that at least on a part of one of the two opposite sides of the elastic pad there are formed protrusions (3) and cavities (4) arranged alternately and changing softly into one another. The elastic pad is used mainly in permanent ways of rail transport as an element attenuating vibrations and absorbing dynamic loads transmitted by railway vehicles to underlying rails.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: January 29, 2002
    Assignee: Pandrol Limited
    Inventors: Andrzej Kaczmarek, Irena Walkowska, Antoni Cala, Krystyna Chabolowska, Jan Durski, Jan Jawecki, Andrzej Kamiński, Andrzej Oczykowski