Provided is a stand for a device that is capable of storing, in a stable state, a plurality of arms that are rotatably coupled. The stand for a device includes a supporter including a first fulcrum, a first arm that is coupled to the supporter so as to be rotatable around the first fulcrum and that includes a second fulcrum on one end, and a second arm that includes a first end and a device-side second end, the first end being coupled to the first arm so as to be rotatable around the second fulcrum. In a case where the first arm and the second arm are positioned at stored positions, the second fulcrum is positioned below the first fulcrum and, also, the second arm is tilted with respect to the vertical direction toward the first arm side.

Briefly stated, an example of a visual-display screen lift comprises a base and a lower support member attached to the base. An upper support member has an upper end portion and a lower portion telescopically engaged with the lower support member. A visual-display-screen support member is pivotably connected to the upper end portion of the upper support member for pivotably supporting a visual display screen thereon. The visual-display-screen support member has a home position aligning the visual-display-screen support member at a selected angular orientation with respect to the upper support member. A drive mechanism is operatively connected to the upper support member for raising and lowering the upper support member. A sensor is configured to detect an angular position of the visual-display-screen support member. The sensor is operatively connected to the drive mechanism such that operation of the drive mechanism depends upon the angular position of the visual-display-screen support member.

An apparatus for holding a container such as a bucket in a level position on an uneven surface, for example, a roof. The apparatus automatically levels itself using pivot points that permit the components of the apparatus to operate independently from each other. The components configured to rotate about pivot points so that a bucket can be held by the apparatus in an upright position.

Apparatus 2 for supporting a musical keyboard 112 between two microphone stands 100, 106 comprising a body member 4 having a first end portion 6 and a second end portion 8. A first clamping arrangement 10 is provided at the first end portion 6 and configured to releasably clamp a microphone stand 100. A second clamping arrangement 12 is provided at the second end portion 8 and configured to releasably clamp a microphone stand 106. The body member 4 is arranged with respect to the first clamping arrangement 10 and the second clamping arrangement 12 such that, when the first clamping arrangement 10 is clamped to a first microphone stand 100 and the second clamping arrangement 12 is clamped to a second microphone stand 106 which is spaced from the first microphone stand 100, the body member 4 is arranged to support a musical keyboard for use of the keyboard.

A device for pivoting a navigation light and methods that use the device can include a mount assembly with an attachment for attaching the device to a structure. A pivot assembly can be supported by the mount assembly, with the pivot assembly mechanically coupled to a drive element such that a drive of the drive element pivots a navigation light to one or more operating, service, or hold positions.

In an illustrative embodiment, an adjustable cradle assembly for adjusting a head position of a patient relative to a patient platform includes a base portion with a pair of vertical support members and a cradle portion. The vertical support members may each include at least one position aperture for setting a vertical height of the cradle portion relative to the base portion. The cradle portion may include a channel for receiving a head fixation ring. The cradle portion may include at least one set of adjustment connection points for aligning with position apertures of each vertical support member. The cradle may be pivotably connected to the vertical support members such that a pitch angle of a head position of a patient secured in the head fixation apparatus may be adjusted. A set of adjustment mechanisms may releasably secure the cradle to the base at a selected lateral and/or pitch position.

A joint portion for angle adjustment arranged between a leg base portion and a leg support member of an imaging equipment-grade tripod includes a joint fixation member with a joint, a pole member having an upper end connected by the joint of the joint fixation member a lower end connected to the leg base portion, a sleeve provided below the joint fixation member and fitting to the joint fixation member, and a coil spring wound around a central axis of the pole member and pressing the sleeve upward. With the joint portion being fixed by fitting between the joint fixation member and the sleeve, the sleeve is pressed downward to release the fitting between the joint fixation member and the sleeve, so that the joint portion is released.

Method and system allowing more accurate detection and identification of unwanted arcing include novel processing of signal voltage representing recovered power-line current. In one implementation, arc-faults are detected based on numerical analysis where individual cycles of line voltage and current are observed and data collected during each cycle is processed to estimate likelihood of presence of arc-event within each individual cycle based on pre-defined number of arc-events occurring within pre-defined number of contiguous cycles. In another implementation, fast transient current spikes detection can be done by: computing difference values between consecutive line-current samples collected over a cycle, average of differences, and peak-to-peak value of line-current; comparing each difference value to average of difference; comparing each difference value to peak-to-peak value; and, based on calculation of composite of two comparisons, using thresholds to determine if arcing is present within processed cycle.

A device can include a housing that comprises a front side that includes a display operatively coupled to display circuitry and a back side that comprises a ferromagnetic surface, a hinge assembly, and a recess; and a ferromagnetic panel transitionable via the hinge assembly from a storage position in the recess to a bridge position that covers the ferromagnetic surface.

A rotary stage assembly includes a platform and a rotary drive defining an axis of rotation. The platform is mounted on a spindle for receiving rotary movement from the rotary drive. A cylindrical wall is attached to the platform receiving rotary movement from the rotary drive and is coaxial with the axis of rotation defined by the rotary drive. The cylindrical wall defines an inner surface including reference patterns. An imaging assembly images the reference patterns on the inner surface of the cylindrical wall. The imaging assembly detects angular orientation and tilt of the platform from an axis of rotation of the platform from imaging the reference patterns on the inner surface of the cylindrical wall. A controller calculates angular orientation and tilt of the platform from the location of said reference patterns signaled from the imaging assembly.