A body support device includes a body attachment portion configured for attaching the body support device to a body of a user, a leg comprising an elongate member having an elongate body having a central longitudinal axis, the leg configured for coupling with the body attachment portion, the elongate member configured for hinged movement between extended and retracted positions, and a coupling interface for hingedly coupling the leg to the body attachment portion, such that the leg is configured for hinging between extended and retracted positions relative to the body attachment portion, wherein the coupling interface is configured for slidably releasable attachment with the at least one receiving channel on the body attachment portion.

A fastening device for fastening at least one sensor to a railway rail includes at least one clamping bow and at least two mutually opposite clamping regions connected to the clamping bow. The at least one sensor and at least part of the railway rail can be disposed between the clamping regions. At least one clamping device is connected to the clamping bow for applying the clamping force between the clamping regions for fastening the at least one sensor to the railway rail. A sensor arrangement including the fastening device and a method for fastening at least one sensor to a railway rail are also provided.

A stand for a charger includes an attachment portion attachable and detachable to and from the charger and a leg portion configured to be capable of supporting the charger with the charger being lifted up off the ground surface when the stand is attached to the charger.

The system includes an optical resonator, a mount, and a fastener. The optical resonator is comprised of a material with a horizontal plane symmetry. The optical resonator includes a horizontal plane protrusion for mounting. The horizontal plane protrusion includes discrete resonator rotational orientation positions. The mount comprises mounting legs compatible with the horizontal plane symmetry. The mount includes discrete mount rotational orientation positions that correspond to the discrete resonator rotation orientation positions at a plurality of rotational angles. The fastener secures the horizontal plane protrusion of the optical resonator to the mount.

Disclosed are various examples of support assemblies comprising multiple elements engaged together and independently rotatable within or substantially parallel to a reference plane while resisting twisting, rotation, or other movement in directions other than substantially within or parallel to the reference plane. The elements typically include projecting members received within cavities of adjacent elements that are configured to allow the resulting assembly to collectively flex within, or substantially parallel to, the reference plane while resisting movement in other directions.

A bar hanger assembly is used to couple a housing to a support structure. The bar hanger assembly may include a bar hanger holder to mechanically couple the bar hanger assembly to the housing, such as a junction box, a can housing, or a frame. The bar hanger holder may define a channel to mechanically guide and support a pair of bar hangers. The bar hangers may be mechanically coupled together in a telescoping manner such that the first bar hanger is slidably adjustable with respect to the second bar hanger. The bar hanger holder and each bar hanger may physically contact one another and, in some instances, generate a compressive force to substantially reduce unwanted play. Each bar hanger may include a bar hanger head to couple the bar hanger assembly to various types of support structures, such as a T-bar, a stud, a joist, or a frame.

Some embodiments described herein relate to an arm cart operable to transport a robotic arm to and/or from a surgical table. The robotic arm can be coupled to the arm cart via a connector. The connector can be slideably mounted to the arm cart such that the connector and the robotic arm, collectively, can move relative to the arm cart. For example, when the arm cart is adjacent to the surgical table, the connector and the robotic arm can be movable to provide final, fine adjustments to align the robotic arm with a coupling portion of the surgical table.

An adjustable ground support beam for an LED display screen has a ground support beam body and two ground support feet, the ground support feet are respectively disposed at two ends under the ground support beam body to support the ground support beam body, each of the ground support feet includes a supporting base and a threaded rod screwed onto the supporting base, the threaded rod is rotatably disposed on the ground support beam body and limited in an upper and lower direction so as to move the supporting base along a lengthwise direction of the threaded rod by rotating the threaded rod to adjust the position of the supporting base. This improves the levelness of the LED display screen, and is convenient for quick installation.

An articulated storage apparatus has a mounting plate having openings for fasteners to mount to a stable stationary surface, a first arm extending from the mounting plate, a second arm coupled at a first end to the first arm at an end away from the carrier plate by a first vertically-oriented rotation mechanism driven by a first electric motor, a carrier plate having openings for fasteners to mount to a storage container, a third arm extending from the carrier plate coupled at an end away from the carrier plate to the second arm at a second end opposite the first end by a second vertically-oriented rotation mechanism driven by a second electric motor, and a control system having independent drivers for the first and the second electric motors, with inputs for independently rotating the electric motors in opposite directions.

A positioning carrier for attaching to a rail having a rib includes a housing having a bore, a frame attached to the housing and engaged onto the rail and having a compartment for receiving the rail, a bracket engaged into the frame and engaged with the rail, a seat attached to the housing and having a curved surface, a latch engaged through the frame and the housing and the seat, a shaft attached to the latch, a spring biasing member engaged onto the latch and engaged between the shaft and the seat, and a cam member engaged with the shaft and engaged with the curved surface of the seat for actuating the frame and the housing and the seat toward each other or for releasing the frame and the housing and the seat from each other.