Patents by Inventor Lennart Gentzel

Lennart Gentzel 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).

  • Publication number: 20110223818
    Abstract: An improved bearing assembly includes one unique shaft washer (158) rather than using separate forward and aft shaft washers as in the prior art; a slight lengthening of the forward roller (174) as compared to the aft roller (176); an increase in the diameter of the forward roller relative to the aft roller; an increase in the number of rollers; improved materials, particularly in the shaft washer (158) where fewer inclusions are present in the metal; and an osculation configured to provide less space and unconstrained movement between the rollers and runways. The improvements result in decreased movement or play between the shaft washers, the bearings/rollers, and the outer rings. The improvements and changes provide a compact design that fits within existing pod propulsion systems.
    Type: Application
    Filed: August 27, 2009
    Publication date: September 15, 2011
    Applicant: ROLLSROYCE AB
    Inventors: Stig Lönngren, Thore Lund, Torbjörn Holmqvist, Pär Malmberg, Lennart Gentzel