Abstract: An x-ray window can include a boron-film 12 and an aluminum-film 52 spanning an aperture 15 of a support-frame 11. The boron-film 12 and the aluminum-film 52 can be the only films, or the primary films, spanning the aperture. The boron-film 12 can include boron and hydrogen. An annular-film 32 can adjoin the support-frame 11, on an opposite side of the support-frame 11 from the boron-film 12. The annular-film 32 can include boron and hydrogen. The annular-film 32 can have the same material composition as, and can be similar in thickness with, the boron-film 12.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: Trimmers and auto advancing trimmer lines are provided. A trimmer includes a trimmer head disposed on a connecting member, a user interface disposed on the connecting member, wherein the user interface is configured to operate the trimmer head, a sensor configured to determine a length of a trimmer line extending from the trimmer head, and an auto advance mechanism configured to extend the trimmer line extending from the trimmer head based on feedback from the sensor.

Abstract: An x-ray window can include a boron-film 12 and an aluminum-film 52 spanning an aperture 15 of a support-frame 11. The boron-film 12 and the aluminum-film 52 can be the only films, or the primary films, spanning the aperture. The boron-film 12 can include boron and hydrogen. An annular-film 32 can adjoin the support-frame 11, on an opposite side of the support-frame 11 from the boron-film 12. The annular-film 32 can include boron and hydrogen. The annular-film 32 can have the same material composition as, and can be similar in thickness with, the boron-film 12.

Abstract: An x-ray window can include a boron-film 12 and an aluminum-film 52 spanning an aperture 15 of a support-frame 11. The boron-film 12 and the aluminum-film 52 can be the only films, or the primary films, spanning the aperture. The boron-film 12 can include boron and hydrogen. An annular-film 32 can adjoin the support-frame 11, on an opposite side of the support-frame 11 from the boron-film 12. The annular-film 32 can include boron and hydrogen. The annular-film 32 can have the same material composition as, and can be similar in thickness with, the boron-film 12.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: An x-ray window can include a boron-film 12 and an aluminum-film 52 spanning an aperture 15 of a support-frame 11. The boron-film 12 and the aluminum-film 52 can be the only films, or the primary films, spanning the aperture. The boron-film 12 can include boron and hydrogen. An annular-film 32 can adjoin the support-frame 11, on an opposite side of the support-frame 11 from the boron-film 12. The annular-film 32 can include boron and hydrogen. The annular-film 32 can have the same material composition as, and can be similar in thickness with, the boron-film 12.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: A securement device for use with a vehicle seat belt buckle. The device includes an integrated latch plate for insertion into a standard vehicle seat belt buckle. It also includes a retention point for attachment, via spring steel clip or other appropriate means, of a personal item such as a personal safety device, holstered smallarm, or related accessories. In alternate embodiments, the device may also incorporate a variety of multitool features and interwoven nylon kernmantle cord for noise reduction.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: A mounted x-ray window can be strong and transmissive to x-rays, can have a hermetic seal, and can withstand high temperatures. The mounted x-ray window can include a film located on an inner-side of a flange of a housing and can be attached to the flange by a ring of elastic adhesive. The film can comprise silicon nitride. A method of mounting an x-ray window can include placing a ring of elastic adhesive on an inner-side of a flange of a housing, placing a film on the ring of elastic adhesive, and baking the housing, the ring of elastic adhesive, and the film.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: A mounted x-ray window can be strong and transmissive to x-rays, can have a hermetic seal, and can withstand high temperatures. The mounted x-ray window can include a film located on an inner-side of a flange of a housing and can be attached to the flange by a ring of elastic adhesive. The film can comprise silicon nitride. A method of mounting an x-ray window can include placing a ring of elastic adhesive on an inner-side of a flange of a housing, placing a film on the ring of elastic adhesive, and baking the housing, the ring of elastic adhesive, and the film.