A switch including a waterproof and light leak prevention structure is disclosed. The switch according to an embodiment of the present invention is a switch including a light emitting member and a push switch on a mount, and includes a switch including a cover plate provided on the mount and configured to cover the light emitting member and the push switch, and the cover plate comprises includes a rubber dome disposed at a position corresponding to the push switch, a light emitting member cover configured to cover the light emitting member at a predetermined distance from an upper surface of the light emitting member, and a light leak prevention protrusion configured to surround a periphery of the light emitting member and to extend upward up to a predetermined height.

The switch structure provided in a control device of a vehicle ceiling part comprises a cover that is openable and closable between a closed position to cover a switch and an opened position to open the switch, and in the cover, a region that covers an operation surface of an operation element of the switch in at least the closed position is formed of a member that transmits light, and the cover has a top surface comprising an inclined portion inclined at an upward gradient from a vehicle front toward a vehicle rear in the closed position.

A handset for controlling a surgical operating table, the handset having a three-dimensional physical representation of a tabletop of a surgical operating table, the physical representation of the tabletop comprising a back section, a seat section and one or more leg sections, wherein at least one of the sections includes a respective sensor arranged to sense a force or movement applied to a surface of the respective section by a touch applied to the surface, and a control system within the handset which is connected to the sensor, the control system being arranged to generate an output control signal for transmission to the surgical operating table to be controlled in response to an input command of an applied force or applied movement sensed by the respective sensor. Methods of controlling a tabletop of a surgical operating table using the handset are also disclosed.

A method is disclosed. The method includes attaching a light beam emitter to an electrical control assembly having at least one control member that is electrically connected to an electrical component, emitting a light beam from the light beam emitter across the at least one control member, moving the at least one control member between a first position in which the light beam is unblocked by the at least one control member and a second position in which the light beam is blocked by the at least one control member, and connecting the light beam emitter to a notification device via an electrical circuit. The method also includes preventing electrical current flow to the notification device when the at least one control member is in the first position.

A control device includes a controller and a safety disconnect mechanism that is illuminable. The controller couples to a power supply line and a load line. Further, the controller is operable to control a power output on the load line using a power supplied by the power supply line. The safety disconnect mechanism is manipulatable between (i) an engaged state, coinciding with the power supply line being electrically coupled to the load line, and (ii) a disengaged state, coinciding with the power supply line and the load line being electrically decoupled, so that no power output is provided on the load line. A lighting element can be provided with the safety disconnect mechanism, where the lighting element is configured to have at least a first illumination state that is indicative of the safety disconnect mechanism being in the engaged position, and a second illumination state that is indicative of the safety disconnect mechanism being in the disengaged state.

A circuit breaker apparatus may include a housing, a circuit inside the housing for protecting the conductors and the load of the circuit, a display attached to outside of the housing, a controller, and a power control device. The display may be an electronically-alterable display that does not require power in situations other than changing its state. The power control device may provide power to the controller and the display when the apparatus is being tampered with. When the controller is powered, it may cause the power control device to cause the display to change from a state that indicates that the apparatus is authenticated to another state that indicates that the apparatus has been tampered with. The power control device may include a battery and a switch, or a power harvester, which can be configured to provide power to the controller when the apparatus is being tampered with.

A portable fuel preservation system is disclosed. The portable fuel preservation system may comprise a switch box configured to be coupled to an integrated fuel pump and control of a gas turbine engine. The switch box may comprise a circuit configured to cause a metering valve and a solenoid valve of the integrated fuel pump and control to open. A driver may be configured to inject preservation fluid into the integrated fuel pump and control.

A residential circuit breaker is provided with means to visually identify certain status information about the device such as detection of a condition through a label. The residential circuit breaker comprises an electronic pole housing that includes an opening for a light emitting diode (LED) light to pass through. The residential circuit breaker comprises the label located on a front of the residential circuit breaker such that the label is used to identify device information about the residential circuit breaker. The label includes a window in a specified area for the LED light to shine through the label to provide an arc fault circuit interrupter (AFCI)/a ground-fault circuit interrupter (GFCI) indication. The residential circuit breaker further comprises a LED mounted on a printed circuit board (PCB) assembly to transmit the light from the LED to an external surface of the circuit breaker without the need of a translucent plastic part.

A golf club head includes a club face and a body. The club face is formed from a metallic material and includes a first, hitting surface, a second, rear surface that is opposite the first surface, and a flange that is separated from the second surface by a transverse distance. The body is formed from a polymeric material and includes a crown, a sole, a hosel, and a face support. The club face and the body cooperate to define a closed volume, and the face support extends to opposing sides of the flange and is operative to couple the club face to the body.

An electromagnetic relay diagnostic device includes: an operation detection unit including a first light-emitting unit emitting light when a current flows through a wiring line connected to a coil of an electromagnetic relay; an operation detection unit including a second light-emitting unit emitting light when a current stops flowing through the wiring line; an operation detection unit including a third light-emitting unit emitting light when detecting a change in conductive state of a wiring line connected to a contact of the electromagnetic relay; an operation detection unit including a fourth light-emitting unit emitting light when detecting that the change in conductive state of the wiring line has disappeared; an imaging unit capturing a moving image of the operation detection units; and a diagnostic unit calculating a contact-on operation time and a contact-off operation time using the moving image, and diagnosing whether an abnormality has occurred in the electromagnetic relay.