Patents by Inventor John Chatfield

John Chatfield 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).

  • Utility vehicle with parallel operated internal combustion engine and electric motor drivetrains
    Patent number: 9346459
    Abstract: A utility vehicle includes a first axle, a second axle, an electric motor, an internal combustion engine, and a torque transfer device. The first axle is coupled to first and second wheels. The second axle is coupled to third and fourth wheels. The electric motor drives the first axle in a first direction and a second direction at different times. The internal combustion engine drives a transmission output shaft in one direction. The torque transfer device selectively drives the second axle in the first direction in response to rotation of the transmission output shaft in the one direction. The torque transfer device also selectively drives the second axle in the second direction in response to rotation of the transmission output shaft in the one direction.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 24, 2016
    Assignee: Textron Inc.
    Inventors: Trenton Munsell, Christopher K. Furman, Patrick Warden, Bradley Skaggs, John Chatfield
  • UTILITY VEHICLE WITH PARALLEL OPERATED INTERNAL COMBUSTION ENGINE AND ELECTRIC MOTOR DRIVETRAINS
    Publication number: 20150183417
    Abstract: A utility vehicle includes a first axle, a second axle, an electric motor, an internal combustion engine, and a torque transfer device. The first axle is coupled to first and second wheels. The second axle is coupled to third and fourth wheels. The electric motor drives the first axle in a first direction and a second direction at different times. The internal combustion engine drives a transmission output shaft in one direction. The torque transfer device selectively drives the second axle in the first direction in response to rotation of the transmission output shaft in the one direction. The torque transfer device also selectively drives the second axle in the second direction in response to rotation of the transmission output shaft in the one direction.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Trenton Munsell, Christopher K. Furman, Patrick Warden, Bradley Skaggs, John Chatfield
  • Utility vehicle with parallel operated internal combustion engine and electric motor drivetrains
    Patent number: 9014887
    Abstract: A utility vehicle includes a first axle, a second axle, an electric motor, an internal combustion engine, and a torque transfer device. The first axle is coupled to first and second wheels. The second axle is coupled to third and fourth wheels. The electric motor drives the first axle in a first direction and a second direction at different times. The internal combustion engine drives a transmission output shaft in one direction. The torque transfer device selectively drives the second axle in the first direction in response to rotation of the transmission output shaft in the one direction. The torque transfer device also selectively drives the second axle in the second direction in response to rotation of the transmission output shaft in the one direction.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 21, 2015
    Assignee: Textron Inc.
    Inventors: Trenton Munsell, Christopher K. Furman, Patrick Warden, Bradley Skaggs, John Chatfield
  • Utility Vehicle With Parallel Operated Internal Combustion Engine And Electric Motor Drivetrains
    Publication number: 20130190957
    Abstract: A utility vehicle includes a first axle, a second axle, an electric motor, an internal combustion engine, and a torque transfer device. The first axle is coupled to first and second wheels. The second axle is coupled to third and fourth wheels. The electric motor drives the first axle in a first direction and a second direction at different times. The internal combustion engine drives a transmission output shaft in one direction. The torque transfer device selectively drives the second axle in the first direction in response to rotation of the transmission output shaft in the one direction. The torque transfer device also selectively drives the second axle in the second direction in response to rotation of the transmission output shaft in the one direction.
    Type: Application
    Filed: February 27, 2012
    Publication date: July 25, 2013
    Applicant: TEXTRON INC.
    Inventors: Trenton Munsell, Christopher K. Furman, Patrick Warden, Bradley Skaggs, John Chatfield
  • Battery pack
    Patent number: D379962
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: June 17, 1997
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Frank Nuovo, Gregor Magnusson, John Chatfield