Patents by Inventor James G. Marciniak

James G. Marciniak 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).

  • Synchro-lock clutch-combination friction and mechanical locking clutch
    Patent number: 8905212
    Abstract: A composite clutch used to transmit an operational range of torques from a driving member to a driven member includes a friction clutch assembly and a dog clutch assembly. The friction clutch assembly includes a number of first friction clutch members coupled to the driving member and a number of second friction clutch members coupled to the driven member. The number of first friction clutch members and the number of second friction clutch members are selected to transmit torque across a first portion of the operational range of torques. An actuator assembly is operatively coupled to the friction clutch assembly and the dog clutch assembly. The composite clutch may be operated in friction clutch and dog modes to provide improved controllability in lower torque operation.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: December 9, 2014
    Assignee: BorgWarner, Inc.
    Inventors: David Vierk, James G. Marciniak, Steven Kowal, James R. Papania
  • SYNCHRO-LOCK CLUTCH-COMBINATION FRICTION AND MECHANICAL LOCKING CLUTCH
    Publication number: 20110155530
    Abstract: A composite clutch used to transmit an operational range of torques from a driving member to a driven member includes a friction clutch assembly and a dog clutch assembly. The friction clutch assembly includes a number of first friction clutch members coupled to the driving member and a number of second friction clutch members coupled to the driven member. The number of first friction clutch members and the number of second friction clutch members are selected to transmit torque across a first portion of the operational range of torques. An actuator assembly is operatively coupled to the friction clutch assembly and the dog clutch assembly. The composite clutch may be operated in friction clutch and dog modes to provide improved controllability in lower torque operation.
    Type: Application
    Filed: April 9, 2009
    Publication date: June 30, 2011
    Applicant: BORGWARNER INC.
    Inventors: David Vierk, James G. Marciniak, Steven Kowal, James R. Papania