Portabl tool for cleaning valve bores and associated inlet passage

For use with a valve having a valve body with a central bore therethrough defining a main bore portion, a valve member mounted for movement between open and closed positions relative to said central bore, said central bore defining an end opening including an intermediate diameter bore portion and a large diameter bore portion with an inner annular shoulder at the juncture of said main bore portion and said intermediate bore portion, and an outer annular shoulder at the juncture of the intermediate bore portion and the large diameter bore portion, said large diameter bore portion defining internal screw threads therein, said valve body adapted to receive the inner end of a flow line in abutting relation against said inner shoulder, and an externally threaded nut mounted about said flow line in threaded relation with said internally threaded bore portion for removably securing said flow line within said end opening;

• the improvement of a portable cleaning tool for cleaning said valve bore adapted to be removably connected within said end opening upon removal of said flow line and associated nut;
• said portable cleaning tool comprising:
• a tool connector having an elongate body with a central bore therethrough;
• a rod extending through said bore having a handle on an outer end thereof and an enlarged diameter cleaning member on the inner end thereof, said cleaning member being generally cylindrical in shape with a trailing end surface to define an annular seat, and an inclined leading end surface to define a leading scraping edge;
• said elongate body of said connector having means for engaging said enlarged diameter cleaning member in a retracted position to prevent outward movement thereof, a main intermediate body portion of a generally uniform cross section, an externally threaded outer end portion, an externally threaded intermediate portion, an integral nut between the threaded portions for rotation of said connector, an inner end portion of a reduced diameter defining an annular shoulder at its juncture with said externally threaded intermediate portion, an annular groove about said reduced diameter inner end portion, and an O-ring received within said annular groove, said connector body being threaded within said end opening of said valve with said externally threaded intermediate portion of said connector engaging said screw threads of said large diameter bore portion of said valve and said shoulder on said connector engaging in abutting relation said outer annular shoulder defined by said central bore of said valve with said O-ring sealing within said central bore;
• a packing extending about said rod and received within the outer end of said connector;
• and
• an internally threaded nut threaded onto said outer end portion and compressing said packing for forming a sealing relation about said rod.

For use with a valve having a valve body with a central bore therethrough defining a main bore portion, a valve member mounted for movement between open and closed positions relative to said central bore, said central bore defining an end opening including an intermediate diameter bore portion and a large diameter bore portion with an inner annular shoulder at the juncture of said main bore portion and said intermediate bore portion, and an outer annular shoulder at the juncture of the intermediate bore portion and the large diameter bore portion, said large diameter bore portion defining internal screw threads therein, said valve body adapted to receive the inner end of a flow line in abutting relation against said inner annular shoulder, and an externally threaded nut mounted about said flow line in threaded relation with said internally threaded bore portion for removably securing said flow line within said end opening;

• the improvement of a portable cleaning tool for cleaning said valve bore adapted to be removably connected within said end opening upon removal of said flow line and associated nut;
• said portable cleaning tool comprising:
• a tool connector having an elongate body with a central bore therethrough;
• a rod extending through said bore having a handle on an outer end thereof and an enlarged diameter cleaning member on the inner end thereof, said cleaning member being generally cylindrical in shape with a trailing end surface to define an annular seat, and an inclined leading end surface to define a leading scraping edge;
• said elongated body of said connector having means for engaging said annular seat of said cleaning member in a retracted position to prevent outward movement thereof, a main intermediate body portion of a generally uniform cross section, an externally threaded outer end portion, an inner end portion of a reduced diameter defining a tapered shoulder at its juncture with said intermediate portion, a first annular groove about said reduced diameter inner end portion, an O-ring received within said first annular groove, and a second annular groove about said intermediate body portion outwardly of said tapered shoulder;
• a retainer ring received within said second annular groove and extending laterally over the adjacent outer end of said valve body;
• a first internally threaded nut receiving said elongate body and retainer ring and threaded onto the external screw threads of said valve body adjacent the end of said body for compressing said retainer ring against the end of said valve body and holding said connector body within said end opening of said valve body;
• a packing extending about said rod and received within the outer end of said connector body;
• and
• a second internally threaded nut threaded onto said outer end portion of said connector and compressing said packing for sealing about said rod.