High-pressure-rotary-nozzle apparatus

A high-pressure rotary-nozzle apparatus comprising:

• a central support shaft having a central passage with an open end and a closed end, including a plurality of radially disposed passages adjacent said closed end through which fluid is passed under high pressure from a hose affixed to said open end thereof, said shaft having an enlarged boss member formed thereon;
• a main rotor body having a longitudinal bore including a central cavity disposed so as to allow said radial passages to be located in said cavity, said body including a plurality of radial discharge ports, said discharge ports being angularly canted relative to the longitudinal axis of said body;
• bearing means positioned at each end of said rotor body to provide free rotation thereof about said shaft;
• means for securing said bearing means and said rotor body for rotational movement on said shaft;
• means for controlling the rotational speed of said body, said means being mounted between said body and said shaft;
• guide means to coaxially position said apparatus along the longitudinal axis of a pipe;
• and
• spray-nozzle means mounted to said discharge ports so as to extend radially and outwardly from said rotor body, whereby said fluid is directed against the wall of said pipe to dislodge foreign debris therefrom as said spray-nozzle means is rotated with said rotor body.