A shelf bracket is provided. The shelf bracket includes a shelf member and opposing side flanges extending from a back plate. A front flange extends from each of said opposing side flanges. The back plate, shelf member, side flange, and front flange define a cavity configured to receive an enclosure, such as by moving the enclosure in a vertical direction in and out of engagement with the cavity. The shelf member defines a bottom limit of the cavity such that movement of the enclosure into the cavity is limited to a first vertical direction and movement of the enclosure out of the cavity is limited to a second vertical direction, the second vertical direction being diametrically opposed to the first vertical direction. A support flange is optionally included, which is configured to engage with a support structure so as to provide support for the shelf bracket.

A shelf bracket is provided. The shelf bracket includes a shelf member and opposing side flanges extending from a back plate. A front flange extends from each of said opposing side flanges. The back plate, shelf member, side flange, and front flange define a cavity configured to receive an enclosure, such as by moving the enclosure in a vertical direction in and out of engagement with the cavity. The shelf member defines a bottom limit of the cavity such that movement of the enclosure into the cavity is limited to a first vertical direction and movement of the enclosure out of the cavity is limited to a second vertical direction, the second vertical direction being diametrically opposed to the first vertical direction. A support flange is optionally included, which is configured to engage with a support structure so as to provide support for the shelf bracket.

A neuromuscular stimulation device is described having a plastic casing housing a printed circuit board bearing control electronics, with the casing including an external integral flexible portion which is capable of being flexed into the interior of the casing so as to cause an electrically insulative substrate on which is carried an electrically conductive pathway to be pushed into contact with the PCB in order to complete an electrical circuit. Such a switch is relatively inexpensive to produce, as it has few moving parts, can be formed in a usual manufacturing process, and is robust.

A neuromuscular stimulation device is described having a plastic casing housing a printed circuit board bearing control electronics, with the casing including an external integral flexible portion which is capable of being flexed into the interior of the casing so as to cause an electrically insulative substrate on which is carried an electrically conductive pathway to be pushed into contact with the PCB in order to complete an electrical circuit. Such a switch is relatively inexpensive to produce, as it has few moving parts, can be formed in a usual manufacturing process, and is robust.

A sensor is provided with a conductor layer, a sensor layer including a plurality of sensor units, and a separating layer which separates the conductor layer from the sensor layer, the sensor unit is formed of alternately arranged first and second electrode elements, and sensitivity on an outer periphery of the sensor unit is higher than the sensitivity in a central portion of the sensor unit.

A sensor is provided with a conductor layer, a sensor layer including a plurality of sensor units, and a separating layer which separates the conductor layer from the sensor layer, the sensor unit is formed of alternately arranged first and second electrode elements, and sensitivity on an outer periphery of the sensor unit is higher than the sensitivity in a central portion of the sensor unit.

A keyboard includes a frame board, a base board secured to the frame board, a membrane circuit board in a space defined by the frame and base boards, a support board on the membrane circuit board, a switch board on the support board, keys on the switch board, a lithium battery on the base board, a control circuit board on the lithium battery, a projection device in the space defined by the frame and base boards, an outer screen on the right side of the frame board, an inner screen on the control circuit board, lights on the frame board, vent-holes on the frame board, first function keys and a second function key on the frame board, a recess on the right side of the base board with the lithium battery therein, a projection device below the vent-holes, and a projection hole aligned with the projection device.

An example keyboard can include: a base with a midpoint, a first end, and a second end opposite the first end; and a plurality of keys arranged on the base, wherein the plurality of keys is positioned to form a curved shape on the base such that the plurality of keys extend from the midpoint of the base towards a user as the plurality of keys extends towards the first end and the second end of the base.

An example keyboard can include: a base with a midpoint, a first end, and a second end opposite the first end; and a plurality of keys arranged on the base, wherein the plurality of keys is positioned to form a curved shape on the base such that the plurality of keys extend from the midpoint of the base towards a user as the plurality of keys extends towards the first end and the second end of the base.

A push switch contains a circuit substrate, two fixed contacts disposed on the circuit substrate, a dome-shaped spring which is disposed above the two fixed contacts and can be displaced between a first position in which the two fixed contacts are in a non-conductive state and a second position in which the two fixed contacts are in a conductive state and a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate and having a surface facing the two fixed contacts. At least the surface of the conductive elastic member facing the two fixed contacts has conductivity. When the dome-shaped spring is displaced to the second position, the two fixed contacts are in the conductive state through the conductive elastic member.