Patent ID: 8584988
Filing Date: 2013-11-19
Classification: B64G

Abstract:
1. An apparatus comprising: a first part, a second part, and a seal ring are fastened together to form a pressure structure configured for a spacecraft structure of a spacecraft, wherein the first part and the second part are each formed from a single workpiece; wherein the first part has a first shape and the second part has a second shape; wherein the first part is machined to form a first flange on a first part outside surface and the second part is machined to form a second flange on a second part outside surface by removing a first amount of a material from the first part and from the second part; wherein the first part outside surface is machined to form a number of first part features and the second part outside surface is machined to form a number of second part features by removing a second amount of the material from the first part and from the second part; wherein the number of first part features comprises a number of first part patterns and a number of first part channels; wherein the number of second part features comprises a number of second part patterns and a number of second part channels; wherein the number of first part patterns comprise a number of first part walls forming a number of first part triangular spaces and a number of first part channels, the number of first part walls intersecting a number of first part nodes; wherein the number of second part patterns comprise a number of second part walls forming a number of second part triangular spaces and a number of second part channels, the number of first part walls intersecting at a number of second part nodes; wherein at least a first node portion of the number of first nodes comprises a number of first blind holes configured to receive one of a number of threaded attachments; wherein at least a second node portion of the number of second nodes comprise a number of second blind holes configured to receive one of the number of threaded attachments; wherein a first part inner surface comprises a number of first part inner surface blind holes penetrating a number of first part closed nodes configured to received one of the number of threaded attachments; wherein a second part inner surface comprise a number of second part inner surface blind holes penetrating a number of second part closed nodes configured to receive one of the number of threaded attachments; and wherein the number of second part closed nodes and the number of second part closed nodes comprise each node that does not have a blind hole.