Patents by Inventor Leandro V. Alencar

Leandro V. Alencar 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).

  • Synchronizer assembly
    Patent number: 8567582
    Abstract: A synchronizer assembly includes a synchronizer sleeve that engages a first gearwheel of the transmission. The synchronizer sleeve and the first gearwheel are rotatable about a shaft, and the synchronizer sleeve is axially moveable along the shaft. The synchronizer assembly further includes a synchronizer ring that contacts a second gearwheel of the transmission to selectively engage the synchronizer sleeve. The synchronizer ring includes a synchronizer spring that selectively abuts the second gearwheel to push the synchronizer ring against the synchronizer sleeve, and a plurality of lugs that engage the second gearwheel. The synchronizer spring is retained on the plurality of lugs.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 29, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Renato Freitas Silva, Edmar Jose Pereira Gomes, Sergio R. Marin, Leandro V. Alencar
  • SYNCHRONIZER ASSEMBLY
    Publication number: 20120145507
    Abstract: A synchronizer assembly includes a synchronizer sleeve that engages a first gearwheel of the transmission. The synchronizer sleeve and the first gearwheel are rotatable about a shaft, and the synchronizer sleeve is axially moveable along the shaft. The synchronizer assembly further includes a synchronizer ring that contacts a second gearwheel of the transmission to selectively engage the synchronizer sleeve. The synchronizer ring includes a synchronizer spring that selectively abuts the second gearwheel to push the synchronizer ring against the synchronizer sleeve, and a plurality of lugs that engage the second gearwheel. The synchronizer spring is retained on the plurality of lugs.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Renato Freitas Silva, Edmar Jose Pereira Gomes, Sergio R. Marin, Leandro V. Alencar