公开(公告)号：US12070095B1

公开(公告)日：2024-08-27

申请号：US17692445

申请日：2022-03-11

Applicant: U.S. Government as Represented by the Secretary of the Army

Inventor： Benjamin P Fasel ,  David S Colanto ,  Robert V Dilalla ,  Tony Kayhart

IPC: A42B3/06 ,  A42B3/12

CPC classification number: A42B3/063 ,  A42B3/12

Abstract: A functionally graded structure for a protective device includes a plurality of lattice structures including at least a first lattice structure having a first geometry and a second lattice structure having a second geometry. The first lattice structure with the first geometry has a first compression response property and the second lattice structure with the second geometry has a second compression response property that is different from the first compression response property.

公开(公告)号：US12059855B1

公开(公告)日：2024-08-13

申请号：US17029117

申请日：2020-09-23

Applicant: U.S. Government as Represented by the Secretary of the Army

Inventor： Jason Parker ,  Tony Kayhart ,  Damian Kubiak ,  Robert Sykes

IPC: B29C70/56 ,  B29C70/46 ,  B29K77/00 ,  B29K105/08 ,  B29K307/04 ,  B29L31/00 ,  F41H1/08 ,  F41H5/04

CPC classification number: B29C70/56 ,  B29C70/465 ,  F41H1/08 ,  F41H5/0485 ,  B29C2793/0081 ,  B29K2077/10 ,  B29K2105/0881 ,  B29K2307/04 ,  B29L2031/768

Abstract: A method of forming a net shape preform for a high performance ballistic helmet includes preparing one or more full prepreg plies, preparing one or more filler prepreg plies, wherein a shape and orientation of one filler prepreg ply of the one or more filler prepreg plies is different from a shape and orientation of another filler prepreg ply of the one or more filler prepreg plies, layering the one or more full prepreg plies with one or more filler prepreg plies to form a ply stack and deforming a portion of the ply stack while constraining the ply stack by applying in-plane tensional force to the ply stack to form the net-shape preform.