Abstract: A cryogenic hydrogen storage vessel includes an outer vacuum vessel, a reinforcement ring on the outer vacuum vessel, an inner pressure vessel inside of the outer vacuum vessel, and a vacuum space between the outer vacuum vessel and the inner pressure vessel. One embodiment of the cryogenic hydrogen storage vessel includes an outer vacuum vessel; a hump-shaped reinforcement ring on the outer vacuum vessel, the hump-shaped reinforcement ring including an external hump portion that protrudes from the hump-shaped reinforcement ring and an internal recess in the hump-shaped reinforcement ring; an inner pressure vessel inside of the outer vacuum vessel, a vacuum space between the outer vacuum vessel and the inner pressure vessel, and a composite support ring in the vacuum space extending from the hump-shaped reinforcement ring on the outer vacuum vessel to the inner pressure vessel, the composite support ring nested in the recess in the hump-shaped reinforcement ring.

Abstract: A cryogenic hydrogen storage vessel includes an outer vacuum vessel, a reinforcement ring on the outer vacuum vessel, an inner pressure vessel inside of the outer vacuum vessel, and a vacuum space between the outer vacuum vessel and the inner pressure vessel. One embodiment of the cryogenic hydrogen storage vessel includes an outer vacuum vessel; a hump-shaped reinforcement ring on the outer vacuum vessel, the hump-shaped reinforcement ring including an external hump portion that protrudes from the hump-shaped reinforcement ring and an internal recess in the hump-shaped reinforcement ring; an inner pressure vessel inside of the outer vacuum vessel, a vacuum space between the outer vacuum vessel and the inner pressure vessel, and a composite support ring in the vacuum space extending from the hump-shaped reinforcement ring on the outer vacuum vessel to the inner pressure vessel, the composite support ring nested in the recess in the hump-shaped reinforcement ring.

Abstract: A cryogenic hydrogen storage vessel includes an outer vacuum vessel, a reinforcement ring on the outer vacuum vessel, an inner pressure vessel inside of the outer vacuum vessel, and a vacuum space between the outer vacuum vessel and the inner pressure vessel. One embodiment of the cryogenic hydrogen storage vessel includes an outer vacuum vessel; a hump-shaped reinforcement ring on the outer vacuum vessel, the hump-shaped reinforcement ring including an external hump portion that protrudes from the hump-shaped reinforcement ring and an internal recess in the hump-shaped reinforcement ring; an inner pressure vessel inside of the outer vacuum vessel, a vacuum space between the outer vacuum vessel and the inner pressure vessel, and a composite support ring in the vacuum space extending from the hump-shaped reinforcement ring on the outer vacuum vessel to the inner pressure vessel, the composite support ring nested in the recess in the hump-shaped reinforcement ring.

Abstract: A cryogenic hydrogen storage vessel includes an outer vacuum vessel, a reinforcement ring on the outer vacuum vessel, an inner pressure vessel inside of the outer vacuum vessel, and a vacuum space between the outer vacuum vessel and the inner pressure vessel. One embodiment of the cryogenic hydrogen storage vessel includes an outer vacuum vessel; a hump-shaped reinforcement ring on the outer vacuum vessel, the hump-shaped reinforcement ring including an external hump portion that protrudes from the hump-shaped reinforcement ring and an internal recess in the hump-shaped reinforcement ring; an inner pressure vessel inside of the outer vacuum vessel, a vacuum space between the outer vacuum vessel and the inner pressure vessel, and a composite support ring in the vacuum space extending from the hump-shaped reinforcement ring on the outer vacuum vessel to the inner pressure vessel, the composite support ring nested in the recess in the hump-shaped reinforcement ring.

Abstract: A pressure vessel apparatus for cryogenic capable storage of hydrogen or other cryogenic gases at high pressure includes an insert with a parallel inlet duct, a perpendicular inlet duct connected to the parallel inlet. The perpendicular inlet duct and the parallel inlet duct connect the interior cavity with the external components. The insert also includes a parallel outlet duct and a perpendicular outlet duct connected to the parallel outlet duct. The perpendicular outlet duct and the parallel outlet duct connect the interior cavity with the external components.

Abstract: A pressure vessel apparatus for cryogenic capable storage of hydrogen or other cryogenic gases at high pressure includes an insert with a parallel inlet duct, a perpendicular inlet duct connected to the parallel inlet. The perpendicular inlet duct and the parallel inlet duct connect the interior cavity with the external components. The insert also includes a parallel outlet duct and a perpendicular outlet duct connected to the parallel outlet duct. The perpendicular outlet duct and the parallel outlet duct connect the interior cavity with the external components.

Abstract: An insert for a cryogenic capable pressure vessel for storage of hydrogen or other cryogenic gases at high pressure. The insert provides the interface between a tank and internal and external components of the tank system. The insert can be used with tanks with any or all combinations of cryogenic, high pressure, and highly diffusive fluids. The insert can be threaded into the neck of a tank with an inner liner. The threads withstand the majority of the stress when the fluid inside the tank that is under pressure.

Abstract: An insert for a cryogenic capable pressure vessel for storage of hydrogen or other cryogenic gases at high pressure. The insert provides the interface between a tank and internal and external components of the tank system. The insert can be used with tanks with any or all combinations of cryogenic, high pressure, and highly diffusive fluids. The insert can be threaded into the neck of a tank with an inner liner. The threads withstand the majority of the stress when the fluid inside the tank that is under pressure.

Abstract: A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more frusto-conically-tapered telescoping rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield.

Abstract: A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more telescoping cylindrical rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration, such as by click locks.

Abstract: A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more telescoping cylindrical rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration, such as by click locks.

Abstract: A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more frusto-conically-tapered telescoping rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield.

Abstract: A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more telescoping cylindrical rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration, such as by click locks.

Abstract: A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more telescoping cylindrical rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration, such as by click locks.

Abstract: A compact, high power electron gun having enhanced thermal and mechanical stability which incorporates a mechanically coupled, self aligning structure for the anode and cathode. The enhanced stability, and reduced need for realignment of the cathode to the anode and downstream optics during operation are achieved by use of a common support structure for the cathode and anode which requires no adjustment screws or spacers. The electron gun of the present invention also incorporates a modular design for the cathode, in which the electron emitter, its support structure, and the hardware required to attach the emitter assembly to the rest of the gun are a single element. This modular design makes replacement of the emitter simpler and requires no realignment after a new emitter has been installed. Compactness and a reduction in the possibility of high voltage breakdown are achieved by shielding the "triple point" where the electrode, insulator, and vacuum meet.