Patents by Inventor Tuomas NYLUND

Tuomas NYLUND 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).

  • REDUNDANT SAFETY CIRCUIT
    Publication number: 20170362055
    Abstract: In modern elevators, safety circuits are used for preventing the operation of an elevator having possibly safety related problems. Sometimes the problem is in the safety circuit itself, and the operation could be continued. In a disclosed arrangement, groups of at least two independent safety circuits are used. The operation of the elevator can be continued in the case where one safety circuit in each group indicates that there is a possible problem. Thus, one deficient safety switch in one safety circuit does not prevent the operation.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 21, 2017
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO, Claus INGMAN, Ferenc STAENGLER, Gergely HUSZAK, Tuomas NYLUND