Abstract: A brake line pressure sensor calibration system for an end of train device includes one or more computer processors, a display screen, and a sensor configured to measure the brake line pressure of the train. The processors are configured to implement a calibration of the sensor, guide a user through a sensor calibration, and acquire calibration data during the calibration. The processors guide the user through the calibration by generating calibration instructions, which the display screen displays, and receiving input responsive to the instructions. To perform the calibration, the sensor acquires at least one pressure measurement of a controlled air pressure applied to the sensor in response to a pressure setpoint input by the user in accordance with the calibration instructions. The device includes an internal memory configured to store the calibration expiration data, which is also displayed on the display screen.

Abstract: A shutter assembly includes a base plate defining a shutter opening having a central axis, and a drive assembly coupled to the base plate. The drive assembly includes a rotatable pinion gear, and a drive rack mating with the pinion gear and moveable in a substantially linear direction in response to rotation of the pinion gear. The shutter assembly also includes a plurality of shutter blades operably connected to the drive rack. The plurality of shutter blades are configured to rotate between an open position exposing the shutter opening and a closed position substantially occluding the shutter opening in response to movement of the drive rack in the substantially linear direction.

Abstract: A modular illumination device having an electronics assembly, an inner body portion extending from a first end to a second end and defining an interior cavity, wherein the inner body portion is formed so as to accept the electronics assembly within the cavity; a head assembly removably attached or coupled to the first end of the inner body portion; a tail cap portion removably attached or coupled to the second end of the inner body portion, wherein the tail cap portion includes a button assembly having a depressible button; and at least one body sleeve extending from a first end to a second end and defining an interior cavity, wherein the body sleeve is formed so as to accept the inner body portion within the cavity of the body sleeve and to be assembled between the head assembly and the tail cap portion.

Abstract: The present application discloses a method of converting a single zone HVAC system to a multi-zoned HVAC system. More specifically, the present application discloses coupling at least one interface module to at least one controller of a heating unit, cooling unit, and blower assembly. Further, at least one thermostat may be positioned within each desired zone of a multi-zoned structure. The user may then position at least one register on at least one terminus of a duct within each zone. Thereafter, each thermostat within each zone is associated or linked via a communication channel or network with at least one register within the same zone, thereby forming at least one thermostat/register regime within each zone of a structure. The interface module may then be associated with the various thermostat/register regimes.

Abstract: A switch assembly that is utilized as a tail cap of a lighting device. The switch assembly comprises a depressible switch that allows the user to activate the lighting device. In an illustrative, non-limiting embodiment, the switch assembly has four channels, providing for at least three different light functions and a locking channel. Different channels are defined by the axial position of the rotatable portion relative to the lighting device body.

Abstract: An offset mountable accessory, including an accessory having an accessory body; and an accessory mounting clamp coupled to the accessory body, wherein the accessory mounting clamp is capable of mounting the accessory body to an accessory rail, such that the accessory body is mounted offset from the accessory rail.

Abstract: A modular illumination device having an electronics assembly, an inner body portion extending from a first end to a second end and defining an interior cavity, wherein the inner body portion is formed so as to accept the electronics assembly within the cavity; a head assembly removably attached or coupled to the first end of the inner body portion; a tail cap portion removably attached or coupled to the second end of the inner body portion, wherein the tail cap portion includes a button assembly having a depressible button; and at least one body sleeve extending from a first end to a second end and defining an interior cavity, wherein the body sleeve is formed so as to accept the inner body portion within the cavity of the body sleeve and to be assembled between the head assembly and the tail cap portion.

Abstract: An offset mountable light, including a light body, wherein the light body includes a battery compartment positioned within a cavity formed by the light body; a light hood housing a light source; at least three electrical contacts formed in the light body, wherein the at least three electrical contacts comprise at least one inner contact and at least two outer contacts; a controller that is capable of controlling the light source to illuminate in a predetermined manner; a light switch bar pivotably coupled to the light body; and an accessory mounting clamp coupled to the offset mountable light, wherein the accessory mounting clamp mounts the mountable light to an accessory rail, such that the mountable light is mounted offset from the accessory rail.

Abstract: A switch assembly that is utilized as a tail cap of a lighting device. The switch assembly comprises a depressible switch that allows the user to activate the lighting device. In an illustrative, non-limiting embodiment, the switch assembly has four channels, providing for at least three different light functions and a locking channel. In these non-limiting embodiments, the different channels are defined by the axial position of the rotatable portion relative to the lighting device body.

Abstract: A shutter assembly for an optical system includes a shutter housing that maintains optical alignments with adjoining parts of the optical system and a shutter mechanism that can be removed and replaced within the shutter housing without disturbing the optical alignments between the shutter housing and the adjoining parts of the optical system. The shutter mechanism can also include alignment features with the shutter housing for restoring the original optical alignment of the shutter mechanism with the adjoining parts of the optical system.

Abstract: A shutter assembly for an optical system includes a shutter housing that maintains optical alignments with adjoining parts of the optical system and a shutter mechanism that can be removed and replaced within the shutter housing without disturbing the optical alignments between the shutter housing and the adjoining parts of the optical system. The shutter mechanism can also include alignment features with the shutter housing for restoring the original optical alignment of the shutter mechanism with the adjoining parts of the optical system.