Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
397 words
A tank cleaning assembly of the type having upper and lower sections, said upper section including a flange 15 with a fluid intake port 1 defined above said flange 15, said lower section including a pipe 18 which is lowered into a tank and held to the tank upper deck by said flange, said pipe 18 having nozzle means 12 towards the end of the pipe 18 lowered into said tank, said assembly comprising in combination: a. a hydraulic reciprocator 2 in said upper section, including a piston 33 therein, with a piston ratchet shaft 3 at an outer end thereof, and a conduit 21 connected to said intake port 1 which causes said piston 33 ro reciprocate by receiving pressure water through said conduit 21, said intake port 1 forming part of an L-shaped joint 16; b. a joint 17, fixed to said L-shaped joint 16 connected with the hydraulic reciprocator 2, a gear mechanism 4 engaged 3, said ratchet shaft (3), upper and lower rotary shafts 5, 5'' rotated and driven through said ratchet and gear mechanism 3, 4 said rotary shafts 5,5'' 5'' being disposed in said pipe 18, said pipe 18 being fixed to said L-shaped joint 16 and disposed to lead pressurized cleaning fluid into said tank, a joint piece 19 attached to the lower end of said pipe 18; c. a jet nozzle body 7 with upper and lower ends and an outer wall which is fastened at its lower end to the lower end of said lower rotary shaft 5'' and the upper end thereof is supported by said joint piece 19 in a freeLy rotatable manner, a hollow and nonrotatable worm gear 8 concentrically mounted on the outside of said lower rotary shaft 5'' and fixed to said joint piece 19, at least a part of which penetrates through said jet nozzle body outer wall and is exposed for engagement; and, d. a nozzle fitting shaft 24 mounted on said jet nozzle body 7 in a transverse direction, a nozzle holder 11 with a cylindrical periphery supported by said nozzle fitting shaft 24 and said jet nozzle body 7 in a freely rotatable manner, a worm wheel 9 fixed to the periphery of said nozzle holder 11 and engaged with said worm gear 8 to rotate said nozzle holder 11 and nozzles 12 fixed to said nozzle holder 11.
Claim 2
Dependent Claim
397 words
A tank cleaning assembly of the type having upper and lower sections, said upper section including a flange 15 with a fluid intake port 1 defined above said flange 15, said lower section including a pipe 18 which is lowered into a tank and held to the tank upper deck by said flange, said pipe 18 having nozzle means 12 towards the end of the pipe 18 lowered into said tank, said assembly comprising in combination: a. a hydraulic reciprocator 2 in said upper section, including a piston 33 therein, with a piston ratchet shaft 3 at an outer end thereof, and a conduit 21 connected to said intake port 1 which causes said piston 33 ro reciprocate by receiving pressure water through said conduit 21, said intake port 1 forming part of an L-shaped joint 16; b. a joint 17, fixed to said L-shaped joint 16 connected with the hydraulic reciprocator 2, a gear mechanism 4 engaged 3, said ratchet shaft (3), upper and lower rotary shafts 5, 5'' rotated and driven through said ratchet and gear mechanism 3, 4 said rotary shafts 5,5'' 5'' being disposed in said pipe 18, said pipe 18 being fixed to said L-shaped joint 16 and disposed to lead pressurized cleaning fluid into said tank, a joint piece 19 attached to the lower end of said pipe 18; c. a jet nozzle body 7 with upper and lower ends and an outer wall which is fastened at its lower end to the lower end of said lower rotary shaft 5'' and the upper end thereof is supported by said joint piece 19 in a freeLy rotatable manner, a hollow and nonrotatable worm gear 8 concentrically mounted on the outside of said lower rotary shaft 5'' and fixed to said joint piece 19, at least a part of which penetrates through said jet nozzle body outer wall and is exposed for engagement; and, d. a nozzle fitting shaft 24 mounted on said jet nozzle body 7 in a transverse direction, a nozzle holder 11 with a cylindrical periphery supported by said nozzle fitting shaft 24 and said jet nozzle body 7 in a freely rotatable manner, a worm wheel 9 fixed to the periphery of said nozzle holder 11 and engaged with said worm gear 8 to rotate said nozzle holder 11 and nozzles 12 fixed to said nozzle holder 11.
Claim 3
Dependent Claim
238 words
A cleaning assembly as set forth in claim 1, said hydraulic reciprocator 2 comprising a casing 31 with a hole 49 for passing driving pressure water, said piston 33 being freely moveable in said casing 31 and having an opening 35 at the center of the piston, a pilot valve 36 arranged so as to open and close said opening 35 at one side of said piston 33 to which pressure is applied, a return spring 34 at the opposite side of said piston 33, a first guide 37 secured to said piston 33, a second guide 40 secured to said casing 31 in a freely moveable manner with said first guide 37, a fixing member 38 fastened to said plot valve 36, a valve opening promoting member 41 disposed in said second guide 40 in a freely moveable manner at a predetermined distance, a valve pushup spring 39 which constantly pushes up said pilot valve 36 interposed between said first guide 37 and said fixing member 38, a valve initial-stage pushdown spring 43 which pushes down said pilot valve 36 at the initial stage of the operation of the piston interposed between said second guide 40 and said fixing member 38, and a valve final-stage pushup spring 44 which pushes up said pilot valve 36 at the final stage of the operation of piston disposed between said second guide 40 and said valve opening promoting member 41.