Patents by Inventor Pedro Emanuel Vasconcelos de Queiroz Vieira

Pedro Emanuel Vasconcelos de Queiroz Vieira 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).

  • Volatile material diffuser and method of preventing undesirable mixing of volatile materials
    Patent number: 8320751
    Abstract: A volatile material diffuser includes a housing and first and second containers holding first and second volatile materials and having first and second wicks, respectively, in contact with respective volatile materials and extending out of respective containers, wherein the containers are inserted into and detachably attached to the housing. The diffuser further includes first and second heaters disposed within the housing adjacent the first and second wicks, respectively, to vaporize the first and second volatile materials, respectively. A means for providing an air flow is disposed in the housing such that air from the means for providing an air flow transports vaporized volatile materials away from the housing. The heaters are energized in an alternating sequence such that, when a heater is deactivated, the means for providing an air flow cools a wick associated with the deactivated heater.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: November 27, 2012
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Jose Porchia, Pedro Emanuel Vasconcelos de Queiroz Vieira, Martin S. Payne
  • Volatile material diffuser and method of preventing undesirable mixing of volatile materials
    Publication number: 20090162253
    Abstract: A volatile material diffuser includes a housing and first and second containers holding first and second volatile materials and having first and second wicks, respectively, in contact with respective volatile materials and extending out of respective containers, wherein the containers are inserted into and detachably attached to the housing. The diffuser further includes first and second heaters disposed within the housing adjacent the first and second wicks, respectively, to vaporize the first and second volatile materials, respectively. A means for providing an air flow is disposed in the housing such that air from the means for providing an air flow transports vaporized volatile materials away from the housing. The heaters are energized in an alternating sequence such that, when a heater is deactivated, the means for providing an air flow cools a wick associated with the deactivated heater.
    Type: Application
    Filed: October 22, 2008
    Publication date: June 25, 2009
    Inventors: Jose Porchia, Pedro Emanuel Vasconcelos de Queiroz Vieira, Martin S. Payne
  • Dispensing device
    Patent number: D584809
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: January 13, 2009
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Jose Porchia, Miguel do Canto Moniz Bual, João Paulo Possidónio Miguens, Pedro Emanuel Vasconcelos de Queiroz Vieira, Mark E. Wefler, David C. Belongia, Marilyn M. Johnson