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公开(公告)号：US11820061B2
公开(公告)日：2023-11-21
申请号：US16951794
申请日：2020-11-18
申请人： Regents of the University of Minnesota , U.S. Government as Represented by the Secretary of the Army
IPC分类号： B29C48/05 , B01F33/30 , B01L3/00 , B33Y30/00 , B33Y80/00 , B29C48/30 , B29C35/08 , C08L83/04 , B33Y70/00
CPC分类号： B29C48/05 , B29C35/0805 , B29C48/30 , B33Y30/00 , B33Y80/00 , C08L83/04 , B01F33/30 , B01L3/502715 , B01L3/502738 , B01L2200/0689 , B01L2300/0627 , B01L2300/123 , B01L2400/06 , B29C2035/0827 , B29C2791/002 , B29C2948/92571 , B33Y70/00
摘要： A printed structure including a plurality of overlying layers of elongate polymeric filaments stacked on a surface of a substrate. The elongate polymeric filaments are stacked on each other along their lengths to form a liquid impermeable, self-supporting wall. The liquid impermeable self-supporting wall forms a wall angle of about 30° to about 90° with respect to a plane of the surface of the substrate.
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公开(公告)号：US11624597B1
公开(公告)日：2023-04-11
申请号：US17703587
申请日：2022-03-24
发明人： Michael Hollis , Leroy McGuire , Michael Donovan , Thomas Gardner
摘要： A safe and reliable multi-component projectile enables cost effective manufacturing and assembly of the projectile. Major components of the projectile are joined by a plurality of shear pins interfacing with scalloped geometry of the components. The components are then held together by forcibly joining them using a hybrid annular-cantilevered snap fit joint. The tooth and groove arrangement exists where the teeth are at the end of a spring-leaf like feature of one of the mating parts and the groove is located on the opposite mating part.
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公开(公告)号：US11614313B2
公开(公告)日：2023-03-28
申请号：US17389598
申请日：2021-07-30
发明人： Anthony Shaw , Jay Poret , Lori Groven , Joshua Koenig , Jason Brusnahan
摘要： The present invention is a pyrotechnic time delay system that is improved over prior-art designs. Specifically, the system described herein comprises at least one delay element. The delay element or delay elements each have an input charge, a delay composition, and an output charge. Both the input charge and the output charge are igniter compositions and are comprised of the same components despite having different functional goals. The input charge and output charge compositions preferably contain titanium, manganese dioxide, and polytetrafluoroethylene. The delay composition may be modified from current formulations to include manganese and manganese dioxide, or tungsten and manganese dioxide. The system disclosed herein may be comprised of one delay element, or it may be modular wherein multiple delay elements are connected in series.
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公开(公告)号：US11378369B1
公开(公告)日：2022-07-05
申请号：US16556819
申请日：2019-08-30
摘要： A modular constructed, standardized test device for simulating a spin stabilized projectile which is fired from a barrel having rifling grooves, comprised of the bolted together, keyed to transfer spin, modular components of replaceable rotating band, replaceable front end and back end, and filler sections for further simulation of other components. The front end has an interior recessed area which allows for a selective integration of a threaded fuze or an aerodynamic, electronic, or other structure and the rear end has a crimp groove for selective attachment of a cartridge case, and aerodynamic or other structure to mimic the rear geometry of a projectile for testing purposes.
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公开(公告)号：US11219785B1
公开(公告)日：2022-01-11
申请号：US15991140
申请日：2018-05-29
摘要： The disclosed subject matter relates to chemical and biological protective garments and ensembles (i.e., two-part garments that when worn together cover most of the human body) and composite fabrics used therein. The composite fabrics include embodiments having a fabric cover layer combined with a vapor protective layer.
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公开(公告)号：US11215431B1
公开(公告)日：2022-01-04
申请号：US17017774
申请日：2020-09-11
发明人： Jeffrey Hayes Gould , Chad H. Sensenig , Joseph P. Chiarolanza , Tim L. Hinkey , Andrzej Krysztofik , Santos Martinez
IPC分类号： F42B8/08
摘要： Method of fabricating a dummy practice ammunition round to dynamically match behavior of an existing live ammunition round during manually cycling of the action, or other demonstration. A dummy practice ammunition round of identical contour is formed, having a center of gravity (mass) in the same position as on the existing live ammunition round. Weight is matched by removing or omitting material through coring into the case head of the round or by hollowing it out.
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公开(公告)号：US20210356243A1
公开(公告)日：2021-11-18
申请号：US17389598
申请日：2021-07-30
发明人： Anthony Shaw , Jay Poret , Lori Groven , Joshua Koenig , Jason Brusnahan
摘要： The present invention is a pyrotechnic time delay system that is improved over prior-art designs. Specifically, the system described herein comprises at least one delay element. The delay element or delay elements each have an input charge, a delay composition, and an output charge. Both the input charge and the output charge are igniter compositions and are comprised of the same components despite having different functional goals. The input charge and output charge compositions preferably contain titanium, manganese dioxide, and polytetrafluoroethylene. The delay composition may be modified from current formulations to include manganese and manganese dioxide, or tungsten and manganese dioxide. The system disclosed herein may be comprised of one delay element, or it may be modular wherein multiple delay elements are connected in series.
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公开(公告)号：US11175118B1
公开(公告)日：2021-11-16
申请号：US16879329
申请日：2020-05-20
摘要： A 40 millimeter (mm) projectile is capable of deploying a payload out of the rear of the projectile. The projectile carries the payload an extended distance from the muzzle and then disperses the payload after a command is provided to the projectile. The projectile includes a proximity fuze which allows it to sense a target and disperse the payload at a given distance from the target. Alternatively, a time-based fuze or radio frequency (RF) based fuze may be employed instead. The payload may be used against a variety of targets, such as personnel, vehicle or aerial targets. In addition, the projectile could be used as a training device for proximity, preprogrammed or RF-controlled fuzed projectiles.
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公开(公告)号：US11149462B1
公开(公告)日：2021-10-19
申请号：US16926801
申请日：2020-07-13
发明人： Melvin W. Jee , Conor R. Hennessy
摘要： A modular shelter system includes a floor panel having a first curved surface along a lateral edge on a top side of the floor panel and a first inside surface located inside of the first curved surface. The modular shelter system additionally includes a wall panel having a second curved surface along a bottom end of the wall panel, wherein the second curved surface is configured to rotate relative to the first curved surface, and wherein the second curved surface is configured to mate with the first curved surface. The wall panel further has a second inside surface located inside of the second curved surface, wherein the second inside surface is configured to mate with the first inside surface when the wall panel is erected over the floor panel.
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公开(公告)号：US11123937B1
公开(公告)日：2021-09-21
申请号：US16544967
申请日：2019-08-20
发明人： Michael Ghebrebrhan , Landa Hoke
摘要： Disclosed is a retro-reflective thread 100 including an internal section 10; a plurality of fibers 12, each fiber comprising a respective longitudinal axis and a respective surface and each fiber comprising a first material that is at least partially optically transmissive, and wherein said plurality of fibers are configured with their respective longitudinal axes substantially co-linearly aligned with one another and said plurality of fibers are interconnected in series around said internal section and wherein a first part 12b of said respective surface of each of said plurality of fibers faces into said internal section; and a reflective material 14 provided on said first part of said respective surface of each of said plurality of fibers.
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