Patents by Inventor Rodrigo Alexandre Sigwalt

Rodrigo Alexandre Sigwalt 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: 20160201972
    Abstract: The present invention refers to an air circulation system, particularly intended to be applied in household appliances of refrigerator type, comprising the innovative technical and functional features, which are capable of improving air flow circulation inside these apparatuses as well as optimizing the space occupied by the fan. More preferably, the present invention refers to an air flow circulation system comprising a refrigerating equipment (R) containing at least one air passage channel (A), within which there is a radial fan (1) disposed in a inclined form at an angle (a) so as to divide said air passage channel (A) in a suction duct (2) and sprinkling duct (3).
    Type: Application
    Filed: June 28, 2014
    Publication date: July 14, 2016
    Inventors: Rodrigo Alexandre Sigwalt, Luiz Afranio Alves Ferreira, Ederson Adriano dos Santos, Julio Cesar Schmidt
  • Patent number: 8033134
    Abstract: A refrigerator includes a refrigerator cabinet, a refrigerator compartment disposed within the refrigerator cabinet, a freezer compartment disposed within the refrigerator cabinet, and a battery. There is at least one fan disposed within the refrigerator cabinet and electrically connected to the battery. The battery powers the at least one fan during a power outage to thereby circulate air from the freezer compartment to the refrigerator compartment. The at least one fan may be a direct current operated fan. The refrigerator may also include an inverter and the at least one fan may then be an alternating current operated fan electrically connected to the inverter. The battery may be disposed within the refrigerator cabinet or may be external to the refrigerator cabinet.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: October 11, 2011
    Assignee: Whirlpool Corporation
    Inventors: Andrew David Litch, Rodrigo Alexandre Sigwalt, Anderson Bortoletto, Vincent Paul Anderson, Michael E. Stagg, Ronald Wayne Guess, Jill C. Moeller, Randell L. Jeffery, Matthew J. Nibbelink
  • Publication number: 20090045680
    Abstract: A refrigerator includes a refrigerator cabinet, a refrigerator compartment disposed within the refrigerator cabinet, a freezer compartment disposed within the refrigerator cabinet, and a battery. There is at least one fan disposed within the refrigerator cabinet and electrically connected to the battery. The battery powers the at least one fan during a power outage to thereby circulate air from the freezer compartment to the refrigerator compartment. The at least one fan may be a direct current operated fan. The refrigerator may also include an inverter and the at least one fan may then be an alternating current operated fan electrically connected to the inverter. The battery may be disposed within the refrigerator cabinet or may be external to the refrigerator cabinet.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 19, 2009
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Andrew David Litch, Rodrigo Alexandre Sigwalt, Anderson Bortoletto, Vincent Paul Anderson, Michael E. Stagg, Ronald Wayne Guess, Jill C. Moeller, Randell L. Jeffery, Matthew J. Nibbelink