Patents by Inventor Guilherme A. Silva

Guilherme A. Silva 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).

  • PROCESS FOR COVERING RUBBER PARTICLES WITH A POLYMERIC FILM AND COVERED RUBBER GRANULATES OBTAINED BY THIS PROCESS
    Publication number: 20110189485
    Abstract: The invention relates to a process for covering rubber particles with a continuous functional layer of polymeric nature, characterized by the use of a rotating drum with variable speed drive allowing for a progressive reduction of the speed and a pre-blend of a setting and filmifiable reactive fluid comprising a liquid resin selected from alkyd resins, polyvinyl chloride resin, urethane alkyd resins, polyurethane-urea resins and reactive polyester resins. The invention also relates to covered granulates obtained by this process.
    Type: Application
    Filed: September 26, 2008
    Publication date: August 4, 2011
    Applicant: INSTITUTO SUPERIOR TECNICO
    Inventors: Joäo Carlos Moura Bordado, Isabel Rute Afonso Veloso, Inês Valente Mendes Raposeiro, Helena Isabel Vilela De Mota, Mariana Fonseca Amaro, Marta Sofia Guilherme Silva Candeias
  • Wicket stacking guide
    Patent number: 5542802
    Abstract: A sideweld bag making machine utilizing a rotary transfer device and wicket conveyer is equipped with a movable bag stacking guide that is used to align bags as they are stacked on the wicket conveyer. The bag stacking guide, which is mounted on the wicket conveyer, has a first raised position for accumulating bags as they are made, and a second lowered positioned to free stack bags for wicket conveyer indexing. The stacking guide is particularly useful for bags having lengths substantially greater than their width.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: August 6, 1996
    Assignee: Battenfeld Gloucester Engineering Co., Inc.
    Inventors: Daniel W. Woodman, Jr., Vance St. Hilaire, Guilherme A. Silva