Patents by Inventor David M. Zini

David M. Zini 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).

  • Patent number: 11267191
    Abstract: An additive manufacturing method includes providing a first composite material and forming a composite part matrix using the first composite material and defining a first layer, applying a first fiber reinforcing material to the composite part matrix atop and in contact with the first layer of the composite part matrix such that fibers of the first fiber reinforcing material are oriented in a first direction and form a second layer on the composite part matrix, applying a second fiber reinforcing material to the composite part matrix atop and in contact with the first fiber reinforcing material such that fibers of the second fiber reinforcing material are oriented in a second direction orthogonal to the first direction and form a third layer on the composite part matrix, applying the first composite material to the composite part matrix, and curing the composite part matrix to create a composite product.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Yucong Wang, David M. Zini, Qigui Wang, Brennon L. White
  • Publication number: 20200353671
    Abstract: An additive manufacturing method includes providing a first composite material and forming a composite part matrix using the first composite material and defining a first layer, applying a first fiber reinforcing material to the composite part matrix atop and in contact with the first layer of the composite part matrix such that fibers of the first fiber reinforcing material are oriented in a first direction and form a second layer on the composite part matrix, applying a second fiber reinforcing material to the composite part matrix atop and in contact with the first fiber reinforcing material such that fibers of the second fiber reinforcing material are oriented in a second direction orthogonal to the first direction and form a third layer on the composite part matrix, applying the first composite material to the composite part matrix, and curing the composite part matrix to create a composite product.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Yucong Wang, David M. Zini, Qigui Wang, Brennon L. White
  • Publication number: 20200131606
    Abstract: A nodular iron alloy and automotive components, such as differential and drive axle components, are provided. The nodular iron alloy may include iron, about 3.1-3.3 wt % carbon, about 2.7-4.3 wt % silicon, about 0.15-0.40 wt % manganese, about 0-0.10 wt % magnesium, about 0-0.2 wt % nickel, about 0-0.4 wt % copper, about 0-0.30 wt % chromium, about 0-0.03 wt % phosphorus, and about 0-0.02 wt % sulfur. The nodular iron alloy may have an ultimate tensile strength of at least 620 MPa as-cast. This alloy possesses favorable weldability to weld with steel components without substantial preheating or post heat treatment for a strong and tough weldment, and it has good machinability to facility comprehensive machining operations.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Inventors: Huaxin Li, Jianghuai Yang, Daniel J. Wilson, Dale A. Gerard, David M. Zini
  • Patent number: 9625006
    Abstract: A transmission includes an input member, an output member, first and second interconnecting members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: April 18, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Mikael B. Mohlin, Tejinder Singh, Patrick S. Portell, David M. Zini
  • Publication number: 20160298734
    Abstract: A transmission includes an input member, an output member, first and second interconnecting members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.
    Type: Application
    Filed: September 17, 2012
    Publication date: October 13, 2016
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mikael B. Mohlin, Tejinder Singh, Patrick S. Portell, David M. Zini
  • Patent number: 9080650
    Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: July 14, 2015
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Kent H. Kienzle, Dan Coffey, David M. Zini, John A. Diemer, Pete R. Garcia, Tejinder Singh, Boris Burgman
  • Publication number: 20140106924
    Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.
    Type: Application
    Filed: August 15, 2013
    Publication date: April 17, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Kent H. Kienzle, Dan Coffey, David M. Zini, John A. Diemer, Pete R. Garcia, Tejinder Singh, Boris Burgman
  • Publication number: 20140080654
    Abstract: A transmission includes an input member, an output member, first and second interconnecting members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.
    Type: Application
    Filed: September 17, 2012
    Publication date: March 20, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mikael B. Mohlin, Tejinder Singh, Patrick S. Portell, David M. Zini
  • Patent number: 8628449
    Abstract: A low mass, two piece planetary gear carrier having an integrated clutch housing comprises a first carrier flange and clutch housing and a second carrier flange which are secured together by a plurality of threaded fasteners extending through hollow dowels. A plurality of planet gears receive needle bearing assemblies which are, in turn, supported on pins or stub shafts. The stub shafts are retained in the carrier by transverse retaining pins received in the second carrier flange and extending into the shafts. Unitized washers are disposed between both faces of the planet gears and the flanges. The method of assembly is also a feature of the present invention.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: January 14, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Boris Burgman, David M. Zini, Derrick R. Black
  • Patent number: 8266977
    Abstract: A transmission includes an input member, an output member, first and second interconnecting members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: September 18, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Mikael B. Mohlin, Tejinder Singh, Patrick S. Portell, David M. Zini
  • Publication number: 20100251840
    Abstract: A transmission includes an input member, an output member, first and second interconnecting members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.
    Type: Application
    Filed: March 1, 2010
    Publication date: October 7, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Mikael B. Mohlin, Tejinder Singh, Patrick S. Portell, David M. Zini