Patents by Inventor Roberto F. Lu

Roberto F. Lu 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: 9016625
    Abstract: A floorboard for a reconfigurable floorboard system may include a substantially trapezoid shaped plate. An interlocking feature may be formed proximate an edge of at least three sides of the plate for interlocking with adjacent floorboards. Each interlocking feature may be formed to interlock with a mating interlocking feature formed at an edge of a side of at least one adjacent floorboard. A notch may be formed on an underside of the plate proximate each corner of the plate to contact a member of a floor grid to prevent movement of the floorboard.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: April 28, 2015
    Assignee: The Boeing Company
    Inventors: Roberto F. Lu, Owen C. Moheet, Rachel L. Hannah
  • Patent number: 8332192
    Abstract: Systems and methods for arithmetic modeling of large scale engineer-to-order production systems using asynchronous stochastic learning curve are disclosed. In one embodiment, a method for simulating a production system configured to produce a product includes, for a plurality of components, assigning learning curve parameters for an asynchronous stochastic learning curve associated with each component. Master schedule data for manufacturing a plurality of the product are received, and production of the plurality of components a plurality of cycles corresponding to the plurality of the product is simulated. The results of the simulated productions are output for analysis. In a further aspect, the product is an aircraft, and the components are aircraft components.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: December 11, 2012
    Assignee: The Boeing Company
    Inventor: Roberto F. Lu
  • Publication number: 20120286092
    Abstract: A floorboard for a reconfigurable floorboard system may include a substantially trapezoid shaped plate. An interlocking feature may be formed proximate an edge of at least three sides of the plate for interlocking with adjacent floorboards. Each interlocking feature may be formed to interlock with a mating interlocking feature formed at an edge of a side of at least one adjacent floorboard. A notch may be formed on an underside of the plate proximate each corner of the plate to contact a member of a floor grid to prevent movement of the floorboard.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Inventors: Roberto F. Lu, Owen C. Moheet, Rachel L. Hannah
  • Publication number: 20080294395
    Abstract: Systems and methods for arithmetic modeling of large scale engineer-to-order production systems using asynchronous stochastic learning curve are disclosed. In one embodiment, a method for simulating a production system configured to produce a product includes, for a plurality of components, assigning learning curve parameters for an asynchronous stochastic learning curve associated with each component. Master schedule data for manufacturing a plurality of the product are received, and production of the plurality of components a plurality of cycles corresponding to the plurality of the product is simulated. The results of the simulated productions are output for analysis. In a further aspect, the product is an aircraft, and the components are aircraft components.
    Type: Application
    Filed: June 14, 2007
    Publication date: November 27, 2008
    Applicant: THE BOEING COMPANY
    Inventor: Roberto F. Lu
  • Patent number: 6983189
    Abstract: A system of manufacturing a product in a pull and push manufacturing system is provided, where the product comprises at least one model and each model includes at least one component. The system includes an order scheduler, a component scheduler, a make-to-order (MTO) portion and an assemble to order (ATO) portion. The order scheduler is capable of receiving order(s) for model(s) of the product, and the component scheduler is capable of generating a component firing order schedule (CFOS) for the components corresponding to the models ordered. The MTO portion can release each component and thereafter produce the components. And the ATO portion can release each order and thereafter assemble the orders released from the produced components at a number of assembly lines. Advantageously, a number of system parameters can be determined based upon modeling the manufacturing system.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: January 3, 2006
    Assignee: The Boeing Company
    Inventor: Roberto F. Lu
  • Publication number: 20030233159
    Abstract: A system of manufacturing a product in a pull and push manufacturing system is provided, where the product comprises at least one model and each model includes at least one component. The system includes an order scheduler, a component scheduler, a make-to-order (MTO) portion and an assemble to order (ATO) portion. The order scheduler is capable of receiving order(s) for model(s) of the product, and the component scheduler is capable of generating a component firing order schedule (CFOS) for the components corresponding to the models ordered. The MTO portion can release each component and thereafter produce the components. And the ATO portion can release each order and thereafter assemble the orders released from the produced components at a number of assembly lines. Advantageously, a number of system parameters can be determined based upon modeling the manufacturing system.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Applicant: The Boeing Company
    Inventor: Roberto F. Lu