Abstract: An articulated fire truck (T) has an extendible and retractable boom (11) mounted on the truck and extendible to a height above the ground where a fire is burning within a building (B). A drill assembly (1) is affixed to the end of the boom for drilling through a sidewall of the building into the building's interior. The drill assembly is maneuverable to drill straight through the sidewall as well as up and down and sideways so to provide an opening into the interior of the building sufficiently large that a nozzle attached to the drill assembly can readily spray water or a fire retardant material into the interior to extinguish the fire. The drill assembly has drill bits (100) located completely about the circumference of the drill assembly to facilitate up-and-down and side-to-side cutting to more quickly penetrate into the building's interior.

Abstract: A crash boot attaches to the front of the locomotive. When inflated, the boot provides a shock absorber for absorbing the impact energy produced when the locomotive collides with another object. By absorbing this energy, the boot protects both the locomotive and its crew, and the other object such as a vehicle and its occupants from severe injury or harm. In a highway environment, a trailer is towed behind a vehicle to a work site. The trailer is parked with one end facing on-coming traffic. This end of the trailer has an inflatable boot which is inflated while the crew is at work. If an on-coming vehicle now collides with the boot, it absorbs the impact of the collision and lessens the damage resulting therefrom.