Patents by Inventor Eugenio Ferreira Cunha

Eugenio Ferreira Cunha 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).

  • High fatigue arcuate spring
    Patent number: 10508700
    Abstract: An arcuate spring having a plurality of coils which are configured and dimensioned to provide an arcuate shape to the spring and being substantially free of internal stresses which would tend to urge the coils into linear alignment. The spring is designed to function under load conditions while maintaining its natural arcuate shape. The spring is can be heated by use of an induction heating process.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: December 17, 2019
    Assignee: Barnes Group Inc.
    Inventors: Eugenio Ferreira Cunha, Sergio Roveri
  • High Fatigue Arcuate Spring
    Publication number: 20140015179
    Abstract: An arcuate spring having a plurality of coils which are configured and dimensioned to provide an arcuate shape to the spring and being substantially free of internal stresses which would tend to urge the coils into linear alignment. The spring is designed to function under load conditions while maintaining its natural arcuate shape. The spring is can be heated by use of an induction heating process.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 16, 2014
    Applicant: Barnes Group Inc.
    Inventors: Eugenio Ferreira Cunha, Sergio Roveri
  • Method for forming a stamped metal part
    Patent number: 8434340
    Abstract: An improved stamped metal part and method for making the same.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 7, 2013
    Assignee: Barnes Group, Inc.
    Inventors: Eugenio Ferreira Cunha, Emira Meka, James Bernabe, Jason Sicotte
  • Spring and spring processing method
    Patent number: 8069881
    Abstract: A method for residual stress enhancement for a coil spring includes radially expanding at least a select axial portion of the coil spring to remove residual tensile stress from the spring inner diameter and induce residual compressive stress in the spring inner diameter. The spring is expanded by radial force on the inner diameter and/or by a helical unwinding force induced by rotating at least one end of the spring relative to the other end of the spring. A tool includes a spring expansion portion and, optionally, a diameter control portion. Cylindrical, conical and/or beehive springs are processed to enhance residual stress.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: December 6, 2011
    Assignee: Barnes Group Inc.
    Inventors: Eugenio Ferreira Cunha, Jason Sicotte, Fabio Rodrigo Geib
  • METHOD FOR FORMING A STAMPED METAL PART
    Publication number: 20100154504
    Abstract: An improved stamped metal part and method for making the same.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Inventors: EUGENIO FERREIRA CUNHA, Emira Meka, James Bernabe, Jason Sicotte