Christopher O Greer

US Patent:

20220227470, Jul 21, 2022

Filed:

Nov 12, 2021

Appl. No.:

17/524888

Inventors:

- Chicago IL, US
Constantin C. Lazar - Charleston SC, US
Christopher A. Greer - Summerville SC, US
Santiago M. Mejia - Charleston SC, US
Nathan W. Vance - Summerville SC, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64C 1/10
B64F 5/10
G05B 19/402

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.

US Patent:

20220227471, Jul 21, 2022

Filed:

Nov 12, 2021

Appl. No.:

17/524948

Inventors:

- Chicago IL, US
Christopher A. Greer - Summerville SC, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64C 1/10
B64F 5/10
G05B 19/402

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.

US Patent:

20180001477, Jan 4, 2018

Filed:

Jun 29, 2016

Appl. No.:

15/196510

Inventors:

- Chicago IL, US
Christopher A Greer - Wadmalaw Island SC, US

International Classification:

B25J 9/16

Abstract:

Systems and methods are provided for placing non-destructive marks onto a part via an end effector of a robot. One embodiment is a system comprising an end effector of a robot. The end effector includes an extendable punch that places targets onto a part, and supports that hold a strip of reflective adhesive tape between the punch and the part. Extending the punch cuts out a target from the strip and applies an adhesive side of the target to the part, and retracting the punch leaves a reflective side of the target visible on the part.

US Patent:

20170327201, Nov 16, 2017

Filed:

May 11, 2016

Appl. No.:

15/151577

Inventors:

- Chicago IL, US
Christopher A. Greer - Wadmalaw Island SC, US
Brian D. Smith - Charleston SC, US
Richard M. Wcislak - Charleston SC, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64C 3/26
G01B 11/14
G01B 11/00

Abstract:

Methods for using predictive shimming to optimize part-to-part alignment. In accordance with one embodiment, the process uses measurement data acquired from mating surfaces and key features to virtually align two parts in a manner that optimizes the final orientation of the parts and determines the geometry of the shim needed to achieve this orientation during assembly.