Ultra high pressure water cleaning tool

A tool for directing a stream of water under pressure of at least 25,000 psi to a selected location comprising:

• tubular means having an inlet end, an outlet end, and a passage connecting said inlet and outlet ends for accommodating water under pressure of at least 25,000 psi, solenoid operated valve means for controlling the flow of the water to said inlet end of the tubular means positioned at a location remote from the tubular means, means connecting the valve means to the inlet end of the tubular means for carrying water to the tubular means, trigger means connected to the tubular means having a switch electrically coupled to the solenoid operated valve means, and moveable means operable to actuate the switch whereby when the moveable means is moved to actuate the switch the solenoid operated valve means is opened to allow the water to flow to the tubular means, and when the moveable means is released the switch operates to deenergize the solenoid operated valve means to close said valve means thereby blocking the flow of the water to the tubular means, a nozzle assembly connected to the oulet end of the tubular means for directing a stream of water to the selected location, said nozzle assembly having a head including an inside wall surrounding an internal chamber open to said passage for receiving ultra high pressure water, a discharge opening open to the chamber and atmosphere, and an inwardly directed lip located between the chamber and discharge opening, a fan tip located in said chamber, annular compressible means surrounding the fan tip and engageable with said inside wall for holding the fan tip on the head, said fan tip having a body with a passage open to the chamber, said body having an annular shoulder located in engagement with the lip and a boss projected into the discharge opening, a transverse slot between parallel inside walls in the boss intersecting the passage in the body forming a discharge orifice allowing ultra high pressure water to flow from the passage in the body into the slot whereby the orifice and slot confine the ultra high pressure water to a generally flat stream of ultra high pressure water and directs the stream of ultra high pressure water to a selected location.

A tool for directing a generally flat stream of water under pressure to a selected location comprising:

• a tubular means having an inlet end, and outlet end, and a passage connecting said inlet and outlet ends for accommodating water under pressure, and a nozzle assembly connected to the outlet end of the tubular means for directing a generally flat stream of water under pressure to the selected location, said nozzle assembly having a head including an inside wall surrounding an internal chamber open to said passage for receiving water under pressure, an external discharge opening open to the chamber, and an inwardly directed lip between the chamber and the discharge opening, a fan tip located in said chamber adjacent said discharge opening for directing a generally flat stream of water to a selected location, annular compressible means surrounding the fan tip and engageable with the inside wall of the head holding the fan tip on the head, said fan tip having a body with a passage open to the chamber, said body having an annular shoulder located in engagement with the lip and a boss projected into the discharge opening, a transverse slot between inside walls in the boss intersecting the passage in the body forming a discharge orifice allowing high pressure water to flow from the passage into the slot whereby the orifice and slot confine the water to a generally flat stream of high pressure water and directs the stream of high pressure water to a selected location.

A nozzle assembly for a tool used to direct a generally flat stream of water under ultra high pressure of at least 25,000 psi to a selected location having a member with a passage connectable to a supply of water under ultra high pressure of at least 25,000 psi characterized by a head mounted on the member, said head having an inside wall surrounding a chamber open to said passage for receiving the ultra high pressure water from said passage, a discharge opening open to said chamber, and an annular inwardly directed lip between the chamber and discharge opening, a fan tip located in said chamber adjacent said discharge opening for directing a generally flat stream of ultra high pressure water to a selected location, and annular compressible means surrounding the fan tip engageable with the inside wall of the head holding the fan tip on said head adjacent said discharge opening, said fan tip having a body with a passage substantially smaller in diameter than said chamber, said body having an annular shoulder located in engagement with the lip and a boss projected into the discharge opening, a transverse slot between parallel inside walls in the boss intersecting the passage forming a discharge orifice allowing ultra high pressure water to flow from the passage into the slot whereby the orifice and slot confine the ultra high pressure water to a generally flat stream of ultra high pressure water and directs the stream of ultra high pressure water to a selected location.