Patents by Inventor Constantin C. Lazar

Constantin C. Lazar 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).

  • Publication number: 20240169114
    Abstract: A computer-implemented system for predictive assembly includes a model generator and a model analyzer. The model generator generates a first model of a first component and a second model of a second component before the first component and the second component are coupled together. The model analyzer analyzes the first model and the second model to determine dimensions of a space between a first mating surface of the first component and a second mating surface of the second component after the first component and the second component are coupled together.
    Type: Application
    Filed: April 3, 2023
    Publication date: May 23, 2024
    Applicant: The Boeing Company
    Inventors: Ben Rennison, Philip L. Freeman, Constantin C. Lazar, Colton M. Smoot
  • Publication number: 20240067324
    Abstract: A pressure bulkhead assembly for an aircraft includes an aft pressure bulkhead and a plurality of splice angles. The aft pressure bulkhead includes a bulkhead interface surface and aft-pressure-bulkhead holes, pre-drilled through the bulkhead interface surface. The plurality of splice angles is configured to be coupled to the aft pressure bulkhead. Each one of the plurality of splice angles includes a flange surface, configured to mate with the bulkhead interface surface. Each one of the plurality of splice angles also includes splice-angle holes, drilled through the flange surface. Each one of the plurality of splice angles further includes a splice surface, extending from the flange surface. With the splice-angle holes aligned with the aft-pressure-bulkhead holes, a plurality of splice surfaces forms a circumferential splice surface with an optimized shape.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: The Boeing Company
    Inventors: Constantin C. Lazar, Christopher A. Greer
  • Patent number: 11873072
    Abstract: A method for making a pressure bulkhead assembly of an aircraft includes determining first locations and first orientations of a plurality of first holes, pre-drilled in an aft pressure bulkhead. The method also includes determining a first surface profile of a first interface surface of the aft pressure bulkhead and determining a second surface profile of a second interface surface of each one of a plurality of splice angles. The method also includes determining second locations and second orientations of a plurality of second holes to be drilled in each one of the plurality of splice angles corresponding to the plurality of first holes in the aft pressure bulkhead and drilling the plurality of second holes in each one of the plurality of splice angles at the second locations and second orientations.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: January 16, 2024
    Assignee: The Boeing Company
    Inventors: Patrick J. Macko, Constantin C. Lazar, Christopher A. Greer, Santiago M. Mejia, Nathan W. Vance
  • Patent number: 11845528
    Abstract: A method of making a pressure bulkhead assembly of an aircraft includes determining an optimized position of splice angles such that splice surfaces of the splice angles will form a circumferential splice surface of the pressure bulkhead assembly with an optimized shape. The method further includes performing a virtual fit between the plurality of splice angles, at the optimized position, and an aft pressure bulkhead. The method also includes determining splice-angle-hole positions of splice-angle holes to be drilled in each one of the splice angles such that the splice-angle holes will correspond to aft-pressure-bulkhead holes, pre-drilled in the aft pressure bulkhead. The method further includes drilling the splice-angle holes in each one of the splice angles at the splice-angle-hole positions. The method also includes joining each one of the splice angles with the aft pressure bulkhead such that the splice surfaces form the circumferential splice surface with the optimized shape.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: December 19, 2023
    Assignee: The Boeing Company
    Inventors: Constantin C. Lazar, Christopher A. Greer
  • Publication number: 20220227471
    Abstract: A method of making a pressure bulkhead assembly of an aircraft includes determining an optimized position of splice angles such that splice surfaces of the splice angles will form a circumferential splice surface of the pressure bulkhead assembly with an optimized shape. The method further includes performing a virtual fit between the plurality of splice angles, at the optimized position, and an aft pressure bulkhead. The method also includes determining splice-angle-hole positions of splice-angle holes to be drilled in each one of the splice angles such that the splice-angle holes will correspond to aft-pressure-bulkhead holes, pre-drilled in the aft pressure bulkhead. The method further includes drilling the splice-angle holes in each one of the splice angles at the splice-angle-hole positions. The method also includes joining each one of the splice angles with the aft pressure bulkhead such that the splice surfaces form the circumferential splice surface with the optimized shape.
    Type: Application
    Filed: November 12, 2021
    Publication date: July 21, 2022
    Applicant: The Boeing Company
    Inventors: Constantin C. Lazar, Christopher A. Greer
  • Publication number: 20220227470
    Abstract: A method for making a pressure bulkhead assembly of an aircraft includes determining first locations and first orientations of a plurality of first holes, pre-drilled in an aft pressure bulkhead. The method also includes determining a first surface profile of a first interface surface of the aft pressure bulkhead and determining a second surface profile of a second interface surface of each one of a plurality of splice angles. The method also includes determining second locations and second orientations of a plurality of second holes to be drilled in each one of the plurality of splice angles corresponding to the plurality of first holes in the aft pressure bulkhead and drilling the plurality of second holes in each one of the plurality of splice angles at the second locations and second orientations.
    Type: Application
    Filed: November 12, 2021
    Publication date: July 21, 2022
    Applicant: The Boeing Company
    Inventors: Patrick J. Macko, Constantin C. Lazar, Christopher A. Greer, Santiago M. Mejia, Nathan W. Vance