Cleaning and liquid contact with solids – Processes – With treating fluid motion
Patent
1990-01-22
1990-11-20
Pal, Asok
Cleaning and liquid contact with solids
Processes
With treating fluid motion
51429, 134 42, 239171, 244136, 2441374, B08B 900
Patent
active
049710826
ABSTRACT:
A rigid stabilizer bar is suspended from a quick-release cargo hook attachment point of the helicopter, and a yoke structure is releasably carried by the hook in fixed relation to the bar for suspending a load, opposite ends of the yoke having flexible lines connected to spaced apart locations on the load. Opposite ends of the stabilizer bar are connected by bungee cords to landing skid anchors for stabilizing the yoke. The load is oriented by yawing and rolling maneuvers of the helicopter. In an emergency, the yoke, together with the lines and the load, can be jettisoned from the vehicle by releasing the hook. The load can be a dispensing module for directing a fluidic medium such as crushed walnut shells in a high-pressure air blast from a nozzle that is located on a boom projecting from the module, onto an elevated workpiece such as an insulator of a tranmission line tower for cleaning the insulator. The cleaning module produces a stream of particulate. The helicopter can fly with the module suspended beside the insulator, the nozzle being aimed relative to the workpiece horizontally by yawing the helicopter and vertically by rolling the helicopter. The nozzle is also movable, and the boom can be raised and lowered by remote control for effective access in a variety of workpiece configurations. The module also generates foam for fighting fires.
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