Abstract: A door opener assembly having a rotatable arm-bar for hands-free use by individuals in high-traffic pedestrian conditions. The rotatable arm-bar has a distal knobbed end and allows users to easily position a wrist or forearm within the hook and to move laterally, as the person moves, as the door is opened and thereafter provides a slide-release of the forearm or wrist. The smooth surface and design of the arm-bar allows users to disengage from contact without risk of injury occurring such as from the unexpected opening of the door from the opposite direction.

Abstract: A door opener assembly having a rotatable arm-bar for hands-free use by individuals in high-traffic pedestrian conditions. The rotatable arm-bar has a distal knobbed end and allows users to easily position a wrist or forearm within the hook and to move laterally, as the person moves, as the door is opened and thereafter provides a slide-release of the forearm or wrist. The smooth surface and design of the arm-bar allows users to disengage from contact without risk of injury occurring such as from the unexpected opening of the door from the opposite direction.

Abstract: A door opener assembly having a rotatable arm-bar for hands-free use by individuals in high-traffic pedestrian conditions. The rotatable arm-bar has a distal knobbed end and allows users to easily position a wrist or forearm within the hook and to move laterally, as the person moves, as the door is opened and thereafter provides a slide-release of the forearm or wrist. The smooth surface and design of the arm-bar allows users to disengage from contact without risk of injury occurring such as from the unexpected opening of the door from the opposite direction.

Abstract: A mechanical self-leveling camera assembly for remote positioning from a deployment position is provided. The self-leveling camera assembly comprises a camera, a weight, a camera housing, and an elongate rod for deploying the camera assembly. The camera and weight are freely rotatable within the housing about an axis such that gravitational forces maintain the rotational orientation of the camera independent of the housing. A slip ring may be included for positioning between the camera housing and the camera, for receipt of, for example, ground, power, or video wires. The camera optionally includes a light-emitting diode ring especially useful for lighting near zero ambient light environments.

Abstract: A mechanical self-leveling camera assembly for remote positioning from a deployment position is provided. The self-leveling camera assembly comprises a camera, a weight, a camera housing, and an elongate rod for deploying the camera assembly. The camera and weight are freely rotatable within the housing about an axis such that gravitational forces maintain the rotational orientation of the camera independent of the housing. A slip ring may be included for positioning between the camera housing and the camera, for receipt of, for example, ground, power, or video wires. The camera optionally includes a light-emitting diode ring especially useful for lighting near zero ambient light environments.

Abstract: A signal generator which can inject an optical signal into all the fibers of a cable, and so be left unmanned during jointing operations, uses a tungsten-halogen or other incandescent light source. This is collimated by conventional optical elements and pulsed by a mechanical chopper. All the fiber ends are aligned with and positioned within the chopped collimated beam.