A security switch for detecting an actuator comprises a magnetic field source, a magnetically susceptible object, and a circuit. The magnetic field source is configured to produce a magnetic field gradient. The magnetically susceptible object is suspended at a first position at least in part due to the magnetic field gradient and shiftable to a second position when the actuator affects the magnetic field gradient. The circuit is configured to detect when the object is in the second position.

A safety switch includes an actuator that has a first possible actuator position and a second possible actuator position and a blocker that has a first possible blocker position and a second possible blocker position. The first possible blocker position overlaps with the second possible actuator position. The safety switch includes a device for generating an electrical signal representative of a current position of the actuator. When the actuator is in the first possible actuator position and the blocker is in the first possible blocker position, the blocker prevents movement of the actuator from the first possible actuator position to the second possible actuator position without first moving the blocker from the first possible blocker position to the second possible blocker position.

An electrical contact system is shown and described. The electrical contact system includes a housing. The housing includes a plurality of sidewalk and a top section having an interior volume. A circuit board is secured within the interior volume the circuit board has a plurality of traces located thereon. Each trace has a plurality of lands connected thereto. A plurality of electrical contacts is electrically connected to the lands such that one end of the electrical contact s connection to one trace and the second end of the electrical contact is connected to the second trace

The invention relates to a sensor device with a beaker-like sensor housing and a wired sensor, wherein the beaker-like sensor housing has an introduction region for the wired sensor. Furthermore, an orientation region for the sensor and a placement region of the sensor close to the end face of the sensor housing is provided. According to the invention, the orientation region has an internal cross-sectional contour which is adapted to the cross-sectional contour of the sensor, and the sensor is introduced into a curable material in its placement region in the sensor housing.

A handheld wireless device for remotely activating a remote controlled system, the handheld wireless device comprising: a casing holding an electrical energy store and circuitry including a transponder arranged to transmit a wireless signal in response to a request received from the remote controlled system; the handheld wireless device further comprising a switching assembly comprising: an electrical switch connected between the electrical energy store and the circuitry, the electrical switch operable by an applied magnetic field to switch the circuitry including transponder on and off; and a mechanical actuator mounted to the casing, the mechanical actuator operable to move a magnet relative to the electrical switch to operate the electrical switch; the mechanical actuator and magnet being located outside the casing and the electrical switch being located inside the casing.

A sensor assembly is provided for a fingerboard latch assembly that comprises: a latch bracket; bolts for mounting the latch bracket to a fingerboard; a latch; and a bracket pin rotatably supporting the latch on the latch bracket to allow rotation of the latch between an open position and a closed position. The sensor assembly has a mounting arrangement that mounts to the bolts, holding a closed-position proximity sensor probe facing downwardly for sensing proximity of a crank portion of the latch and/or the piston head in the closed position, and also holding an open-position proximity sensor probe facing forwardly for sensing proximity of an arm of the latch in the open position.

A protective cover assembly for an electrical wall switch disposed on a wall in which the electrical wall switch has an actuator physically contactable and actuatable by a user for controlling electrical power to a load from an electrical power source. The protective cover assembly may include an enclosure and a connector for connecting the enclosure over the electrical wall switch to inhibit a user from physically contacting and actuating the actuator. A first magnetic material member is attached to or disposed in the actuator. A tool includes a second magnetic material member. When the tool is moved relative to the outer surface of the enclosure, a magnetic force acting through the enclosure is operable to move the actuator from a first position to a second position thereby moving the actuator for controlling electrical power to the electrical load.

The mailbox delivery notification system is configured for use with a mailbox and a personal data device. The mailbox delivery notification system monitors the mailbox. The mailbox delivery notification system transmits a message to the personal data device when the mailbox delivery notification system detects that the mailbox door has been opened to deliver the mail. The mailbox delivery notification system comprises a housing, a reed switch, and a control circuit. The housing contains the control circuit and a portion of the reed switch. The reed switch electrically connects to the control circuit. The reed switch generates an electric signal indicating that the mailbox door is open. The control circuit monitors the reed switch. The control circuit transmits a message to the personal data device when the control circuit detects the electric signal indicating that the mailbox door is open.

A vehicle and a running board device for the vehicle are provided. The vehicle includes: a vehicle body; a vehicle door; a running board mounted to the vehicle body and movable between an extended position and a retracted position; an actuator connected to the running board; a magnet mounted to the vehicle door; a magnetic induction element mounted to the vehicle body and that cooperates with the magnet so as to be triggered to generate a door-opening signal and a door-closing signal; a signal transmission line having a first end of the signal transmission line connected with the magnetic induction element; and a controller mounted to the vehicle body and connected with a second end of the signal transmission line and the actuator, so as to actuate the running board to move between the extended position and the retracted position according to the door-opening signal and the door-closing signal.

The present disclosure relates to a coolant level sensor device for application in vehicles, comprising three interoperable component parts: a housing component, an interchangeable cartridge assembly, and a resistor pigtail. The housing component may be configured to permanently and/or semi-permanently reside within the engine cooling system such that the housing component may receive the interchangeable cartridge assembly selectively connected with the resistor pigtail. The interchangeable cartridge assembly may comprise a reed switch that may be replaceable when damaged. Further, the interchangeable cartridge mechanism may be configured to connect with the resistor pigtail, which may include at least one resistor, such that the at least one resistor may be removed from close proximity to the high temperatures generated by the engine, thus increasing the life of the resistor components. This three part configuration may allow for the easy replacement of elements of the coolant level sensor prone to failure, without the need to replace functioning components.