CN2740341Y - Multi-purpose hydraulic disassembling-assembling device - Google Patents
Multi-purpose hydraulic disassembling-assembling device Download PDFInfo
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- CN2740341Y CN2740341Y CN 200420115657 CN200420115657U CN2740341Y CN 2740341 Y CN2740341 Y CN 2740341Y CN 200420115657 CN200420115657 CN 200420115657 CN 200420115657 U CN200420115657 U CN 200420115657U CN 2740341 Y CN2740341 Y CN 2740341Y
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Abstract
The utility model relates to a multi-purpose hydraulic disassembling-assembling device, belonging to the technical field of equipment for disassembling and assembling various screw-joint column-jacket work pieces used in petroleum and geology. A front base, a supporting frame of a fast spinner assembly, a base assembly and a back base are connected into an entirety by bolts. A fixing clamp is installed on the left side of the base assembly and a punching clamp is fixed on the right side of the base assembly. Four sets of ancillary shoring are respectively equipped on the front base and the back base. A tail section pushing-pulling device is equipped on the right side of the back base. The fixing clamp and the punching clamp work simultaneously in order to realize screwing on and off a work piece. The fast spinner assembly realizes fast screwing the work piece and the tail section pushing-pulling device realizes pushing and pulling a rotor in axial direction.
Description
Technical field
The utility model relates to a kind of multipurpose hydraulic disassembling and assembling machine and belongs to all kinds of oil of dismounting, the geology apparatus technology with the tubing string workpiece that is threaded.
Background technology
Since when oil, geology with the last shackle moment of torsion of the tubing string workpiece that is threaded greater than certain value after, manually can't carry out disassemble and assemble work, so be badly in need of a kind of equipment and finish this work.Requirement multipurpose hydraulic disassembling and assembling machine has the automaticity height, upward the shackle moment of torsion is big, the diameter range that is suitable for body is wide, non-slip when going up shackle, the surface of the work that do not bite, have characteristics and functions such as quick spinner and afterbody push-and-pull, could satisfy such demand fully.
Summary of the invention
The purpose of this utility model provides a kind of multipurpose hydraulic disassembling and assembling machine and is used for all kinds of oil of dismounting, geology with the tubing string workpiece that is threaded.
The structure of multipurpose hydraulic disassembling and assembling machine is that support, the base assembly of preceding base, quick spinner assembly are connected in aggregates with rear base by bolt; Fixedly pincers are installed on the base assembly left side, and impact tong is fixed on base assembly right side; On base and the rear base, the afterbody push-pull device at fixed was contained in the rear base right side before the quadruplet supplemental support was contained in respectively.By fixing pincers and impact tong act on simultaneously realization to going up of workpiece buckle, shackle, by the quick spinner of quick spinner assembly realization, by the axial push-and-pull function of afterbody push-pull device at fixed realization rotor to workpiece.
Six chucking oil cylinders of fixing pincers have choke valve respectively, dop is contained in the chuck body, there are clamping plate the chuck body both sides, use bolting, the guiding keyway is arranged above the dop, and chuck body is equipped with bearing pins, and face wheel is fixed on above the face wheel bearing, the heavy duty wheel is fixed on the bearing, and face wheel is supported by bearing pin.
Impact tong also has six to have choke valve chucking oil cylinder, and dop also is contained in the chuck body; Pincers handle one end is fixed with pin and chuck body, the other end is connected with the piston rod of punch oil cylinder with pincers handle pin, punch oil cylinder is an end hinge formula, its hinge cooperates with the hinge cover of side plate, there is cylindrical step at the chuck body two ends, the hole of biside plate cooperates with it respectively, and mounting flange all on the side plate is equipped with the gusset frame on the side plate.
Spinner is contained in above the lead fast, and the corner of support is equipped with connecting plate, is used to connect quick spinner assembly and base assembly, uses bolting; Clamping cylinder is fixed on above the side plate of support; Hydraulic motor output shaft is connected by key with the through hole of gear shaft one end, and friction pulley and gear are contained on the friction wheel axle with key, and gear shaft, friction pulley, gear, friction wheel axle all are contained in the housing.
The advantage of multipurpose hydraulic disassembling and assembling machine is to be operated by electric hydraulic, the automaticity height, and last shackle moment of torsion is big, and it is wide to be suitable for the pipe diameter scope, non-slip during last shackle, surface of the work does not bite.Its fixing pincers are used to tighten workpiece, bear the reaction torque when dashing button, and move to axial in the workpiece joints two ends when allowing to dash button; Impact tong can tighten workpiece and release and link closely, and quick spinner is spinner fast, improves dismounting efficient.
Description of drawings
Fig. 1 host structure chart
Fig. 2 console structure chart
Fig. 3 is the left view of Fig. 2
Fig. 4 is that the K of Fig. 3 is to view
Fig. 5 power station structure chart
Fig. 6 is the vertical view of Fig. 5
Fig. 7 hydraulic system principle figure
Fig. 8 is wrench structure figure fixedly
Fig. 9 is the A-A cutaway view of Fig. 8
Figure 10 impact tong structure chart
Figure 11 is the left view of Figure 10
The quick spinner assembly structure chart of Figure 12
Figure 13 is the B-B cutaway view of Figure 12
Figure 14 electrical schematic
By Fig. 1, preceding base (2) is connected the left side of base assembly (4) by bolt, the support of spinner assembly (6) is connected the right side of base assembly (4) by bolt fast, rear base (7) is connected the support right side of quick spinner assembly (6) by bolt, and whole base is connected with ground by foundation bolt.Two cover supplemental support (1) are installed to preceding base (2) and go up and move nimbly and freely, and other two cover supplemental support (1) are installed to rear base (7) and go up and move nimbly and freely.Impact tong (5) is by being bolted to the right side of base assembly (4), and fixing pincers (3) then are installed to the left side of base assembly (4).Adjust quick spinner assembly (6) centre-height, make itself and the fixing central lines that clamps (3) and impact tong (5).Afterbody push-pull device at fixed (8) then is installed in the right side of rear base (7).
By Fig. 2,3,4, accumulator (9), hydraulic valve integrated package (16) are installed in the switch board (15), the handle of control valve group (17) reaches the following control panel of switch board (15), system pressure table (10), towards buckle press table (11), clamping pressure table (12), voltmeter (13), ammeter (14), power switch (18), electric motor starting knob (20), stop on the last control panel that knob (19) is installed in switch board (15).
By Fig. 5,6, the output shaft of motor (27) sucks hydraulic oil by shaft coupling (25) driving axial plunger displacement pump (21) from fuel tank (30), and the pressure oil of certain pressure and flow is provided to system by threeway (22).System pressure table (26) is connected the pressure that comes display system in the main line by pressure meter switch (32), overflow valve (24) is connected with threeway (22) by pipe joint (23), and can set up system pressure by overflow valve (24), the system pressure of this equipment is set up at 22Mpa.Hydraulic oil-returning is got back in the fuel tank (30) through return filter (31), and the hydraulic oil in the fuel tank (30) communicates with atmosphere by air filter (28), and the liquid level of hydraulic oil and temperature show by liquid level liquid thermometer (29).Open fuel outlet valve (33), can carry out the cleaning of fuel tank after putting the hydraulic oil in the fuel tank clearly.
By Fig. 7, motor (57) connects axial plunger pump (58), return filter (60) is connected to drawing oil cylinder (34), this oil cylinder is connected to reversal valve (67) again, hydraulic motor is connected to reversal valve (66) and sequence valve (65), be connected to return filter (60) again, clamping cylinder (39) is connected to reversal valve (64) and Pressure gauge (36) and pressure meter switch (37), one way pressure-reducing valve (38) also with reversal valve (66), (67) join, plunger displacement pump (58) connects overflow valve (40) again, be connected with (42) with overflow valve (41) respectively together with pressure-reducing valve (61), this overflow valve all is connected to reversal valve (54), reversal valve (54) connects Pressure gauge (59) and pressure-reducing valve (61) again, reversal valve (54) connects check valve (43) and (44) in addition, be connected to reversal valve (53) and (51) then respectively, this valve (53), (51) be connected to towards button cylinder (45), reversal valve (47) is connected with chucking oil cylinder (46), accumulator (48) is connected with pressure meter switch (50) with check valve (49), and check valve (49) connects reversal valve (47).Air filter (56) is housed in the fuel tank (30), and liquid level liquid thermometer (55) and fuel outlet valve (62) are equipped with in the fuel tank side.
After the pressure oil of power station generation flow to the control valve group, reversal valve S1 (54) was when handle is in meta, and system is in unloading condition; When being in the I position, when all the other each reversal valves were in meta, there was the branch road of two different pressures in system.Wherein, the pressure of the branch road in diagram the right is system pressure, and the pressure of a branch road on the diagram left side is set up by pressure-reducing valve (61).Reversal valve (54) handle is in when being positioned at the I position, and the pressure of the right branch road, is then controlled by overflow valve (42) when being in the I position by overflow valve (41) control.As seen the pressure of the right branch road can be regulated arbitrarily below 20Mpa.Pressure oil through overflow valve (41) or overflow valve (42) setting divides two branch roads walkings again, article one, branch road leads to towards button cylinder (45) by reversal valve S4 (53), another branch road leads to accumulator (48), and leads to behind reversal valve S2 (47) and S3 (51) in the chucking oil cylinder (46) of fixing pincers (3) and impact tong (5).Reversal valve S2 (47) handle is in when being positioned at the I position, and six chucking oil cylinder (46) piston rods stretch out in the fixing pincers (3); Then return when being in the III position.Reversal valve S3 (51) handle is put respectively with when I position and III position, and six chucking oil cylinders (46) action is with fixing pincers (3) in the impact tong (5).Accumulator (48) can make chucking oil cylinder (46) piston rod of fixing pincers (3) and impact tong (5) after stretching out and returning, and wherein oil pressure keeps relative stability.When making reversal valve S4 (53) handle place I position or III position, two punch oil cylinders (45) piston rod stretches out or returns.
Pressure oil through pressure-reducing valve (61) also divides two branch road walkings.Wherein one leads to clamping cylinder (39) and hydraulic motor (35), and another leads to drawing oil cylinder (34).When reversal valve S5 (64) handle is in the I position, pressure oil drives two clamping cylinders (39) piston rod and stretches out by behind the one way pressure-reducing valve (38), after oil pressure wherein is greater than the pressure of being set up by one way pressure-reducing valve (38), directly sequence valve (65) is opened, hydraulic motor (35) action.The direction of rotation of hydraulic motor (35) is by reversal valve S6 (66) control, and promptly when reversal valve S6 (66) handle was in I position or III position, hydraulic motor (35) was with left-handed or dextrorotation, and when being in meta, hydraulic motor (35) action stops.Directly the pressure set up of sequence valve (65) should be greater than the pressure by one way pressure-reducing valve control (38), otherwise hydraulic motor (35) can not move.The action of drawing oil cylinder (34) is by reversal valve S7 (67) control, and promptly when handle was in meta, drawing oil cylinder (34) was failure to actuate, and when being in I position or III position, piston rod stretches out or returns.
By Fig. 8,9, when tubing string released or link closely, fixing pincers (3) were used to tighten tubing string and bear reaction torque when dashing button, can allow the motion to axial at casing adapter two ends in the button process simultaneously.In addition, can also satisfy with impact tong (5) between the different needs that hold distance.
Six chucking oil cylinders (68) of fixing pincers (3) have one-way throttle valve respectively, by its adjusting choke valve realize six dops (73) when stretching out synchronously; Dop (73) is contained in the chuck body (72), there are clamping plate (73) chuck body (72) both sides, clamping plate (73) are fixing with connecting bolt (69), dop has the guiding keyway above (73), chuck body (72) is equipped with bearing pins (70), and face wheel (77) is fixed on above the face wheel bearing (76), and heavy duty wheel (80) is fixed on the bearing (76), face wheel (77) is supported by bearing pin (79), and adjustment screw 75 is connected face wheel bearing (76) with clamping plate (73).
During work, the primer fluid pressing system, chucking oil cylinder (68) action, by connecting bearing pin, piston rod drives that dop (73) is corresponding to be stretched out or return.Dop has feather key on (73), and chuck body (72) should have keyway mutually, can not rotate when making dop (73) action.When dashing button, six dops (73) are driven by six chucking oil cylinders (68) respectively and tighten tubing string in the fixing pincers (3).The moment of torsion that impact tong (5) applies reaches chuck body (72) by fixing pincers (3) dops (73).Chuck body (72) is fixing by being connected breechblock (69) with both sides clamping plate (71), does not relatively rotate in order to make between them, also is provided with unloading pin (70).The walking that face wheel (77) not only is used for fixing is transmitted and next active force but also bear by clamping plate (71).Both sides heavy duty wheels (80) make fixing pincers (3) be unlikely to overturning when dashing button, also bear the active force when dashing button simultaneously.The relative centre-height of fixing pincers (3) and the levelness of centre bore are regulated by adjustment screw (75).
By Figure 10,11, when dashing button, impact tong (5) should tighten tubing string, and releasing or link closely for tubing string again provides moment of torsion; During the drawing rotor, work to hold the stationary pipes post.
Impact tong (5) also has 6 chucking oil cylinders (86), and dop (83) also is contained in the chuck body (84); Pincers handle (87) one ends are fixing with pin (85) and chuck body (84), the other end is connected with the piston rod of punch oil cylinder (89) with pincers handle pins (88), punch oil cylinder (89) is an end hinge formula, its hinge cooperates with the hinge cover of side plate (81), and there is cylindrical step at chuck body (84) two ends, and the hole of biside plate (81) cooperates with it respectively, mounting flange (82) all on the side plate, and by flange (82) realization axial location, they can relatively rotate, and gusset frame (90) is housed on the side plate.Biside plate (81) interconnects in the bottom, and respectively with base assembly (4) and fast spinner assembly (6) be connected and fixed, bearing the effect of dashing the button moment of torsion, and pulling force or thrust during the drawing rotor.
When dashing button, start chucking oil cylinder (86) earlier, thereby driver card (83) head tightens tubing string, restart punch oil cylinder (89) and make full piston rod action, at this moment, the casing adapter same chuck body in one end limit (84) rotates relative to both sides side plate (81), has promptly realized releasing or linking closely purpose.During the drawing rotor, the same method chucking tubing string, that carries out rotor again pulls out or pushes action.The maximum spinner angle of this mechanism is 40 °, has reduced the number of times of rotation like this.
By Figure 12,13, when the tubing string thread dashes the pine back or begins to go up button, realize quick spinner, to improve dismounting efficient with quick spinner assembly (6).
Spinner (94) is contained in above the lead (93) fast, and the corner of support (92) is equipped with connecting plate (95), is used to connect quick spinner assembly (6) and base assembly (4), uses bolting; Clamping cylinder (91) is fixed on above the side plate of support (92); The output shaft of hydraulic motor (100) is connected by key with the through hole of gear shaft (101) one ends, friction pulley (96) is contained on the friction wheel axle (99) with key with gear (97), gear shaft (101), friction pulley (96), gear (97), friction wheel axle (99) all are contained in the housing (102), when hydraulic motor (100) rotates, gear shaft (101) run-in synchronism, and driven gear (97) and friction pulley (96) rotation.。
During spinner, promote the quick spinner (94) on both sides respectively by two clamping cylinders (91) earlier, so that clamp tubing string, again according to last button or shackle requirement, primer fluid pressure motor (100) drives four friction wheels (96) rotation, thereby band Zhi Guanzhu rotates, and realizes the purpose of quick spinner.
By Figure 14, three-phase alternating-current supply is connected with automatic switch NFB (103), and leader cable (104) joins with contactor Q1 (107), and contactor Q1 (107) connects electrothermal relay (108) and motor (109).Leader cable (104) connects the elementary winding of fuse F1 (110) and transformer T (114) again, and fuse F2 (110), the S of leader cable join current transformer (106) and ammeter (105).The secondary windings two ends of transformer T (114) meet fuse F3 (111) and F4 (111) respectively, the voltmeter (112) that is connected in parallel again, the secondary windings of transformer T (114) is connected to contact and the start button S1 (113) of power switch S3 (117), electrothermal relay K2 (116), stop button S2 (115), contactor Q1 (107) again with control circuit electric wire (118) simultaneously.
Connect general supply, turn on the power switch S3 (117), switch in the control circuit, press start button S1 (113) with key, contactor Q1 (107) inhale and, motor (109) starts; Press stop button S2 (115), contactor Q1 (107) disconnects, and motor (109) stops operating.When the electric current of main circuit surpasses the permissible value of fuse (110), fuse (110) will fuse; When the control circuit electric current surpasses the permissible value of fuse (111), fuse (111) will fuse, more than all will make contactor Q1 (107) disconnection under two kinds of situations, thereby protected motor.
The specific embodiment
Press the electric motor starting knob (20) on the console, start changer.
According to the external diameter of want dismounting tubing string, regulate supplemental support (1) highly, make tubing string concentric with fixing pincers (3) and impact tong (5) hole clipping.Tubing string is placed on the supplemental support (1), promotes supplemental support (1) tubing string is transported in the hole clipping of fixing pincers (3) and impact tong (5), release part should be between them.
Chucking oil cylinder (68) the directional control valve handle S2 (47) that will fix pincers (3) places the I position, makes fixing pincers (3) chucking tubing string earlier.Chucking oil cylinder (86) the directional control valve handle S3 (51) of impact tong (5) is placed the I position, make impact tong (5) clamp tubing string.After to be clamped, promptly tighten after pressure rises to setting, again punch oil cylinder (89) directional control valve handle S4 (53) is placed the I position, thereby begin to dash button, all stretch out until punch oil cylinder (89) piston rod.If button is also not loose fully, then must dash button again.At this moment, impact tong (5) chucking oil cylinder (86) directional control valve handle S3 (51) is placed the III position, allow dop (83) break away from tubing string; Punch oil cylinder (89) directional control valve handle S4 (53) is placed the III position, piston rod is all return; Put impact tong (5) chucking oil cylinder (86) directional control valve handle S3 (51) again and place the I position, behind the chucking tubing string, as above method is dashed button once more, so until button till the pine.As above method makes impact tong (5) dop (83) break away from tubing string, and punch oil cylinder (89) piston rod is return.
Clamping cylinder (91) the directional control valve handle S5 (64) that puts quick spinner assembly (6) makes quick spinner (94) clamp tubing string earlier in the I position.Hydraulic motor (100) the directional control valve handle S6 (66) that puts quick spinner assembly (6) is in the I position, thereby carries out quick spinner.Spinner finishes, hydraulic motor (100) directional control valve handle S6 (66) must be placed meta, be the rotation of stop solution pressure motor (100), clamping cylinder (91) the directional control valve handle S5 (64) that puts quick spinner assembly (6) again returns its piston in the III position.
To be coupled together by drawing rotor and afterbody push-pull device at fixed (8) with crossover sub, and operate drawing oil cylinder (34) directional control valve handle S7 (67) again and carry out the drawing of rotor.
The dress of tubing string is identical with the direction of tearing open, but it is noted that: the direction of dashing button and spinner is opposite when releasing; The control tightening torque is promptly adjusted pressure according to the requirement of tubing string tightening torque, the operation of linking closely again.After operation was finished, the motor of pressing on the console stopped knob (19), can stop changer.
Claims (4)
1. multipurpose hydraulic disassembling and assembling machine, it is characterized in that preceding base (2) is connected in base assembly (4) left side by bolt, spinner assembly (6) is contained in the right side fast, rear base (7) is contained in the right side again, supplemental support (1) is installed on preceding base (2) and the rear base (7), fixing pincers (3) are contained in base assembly (4) left side, and impact tong (5) is fixed on the right side, and afterbody push-pull device at fixed (8) is contained in rear base (7) right side.
2. hydraulic disassembling and assembling machine according to claim 1,6 the chucking oil cylinders (68) that it is characterized in that fixing pincers (3) have choke valve respectively, dop (73) is contained in the chuck body (72), there are clamping plate (73) chuck body (72) both sides, use bolting, dop has the guiding keyway above (73), chuck body (72) is equipped with bearing pins (70), face wheel (77) is fixed on above the face wheel bearing (76), heavy duty wheel (80) is fixed on the bearing (76), and face wheel (77) is supported by bearing pin (79).
3. hydraulic disassembling and assembling machine according to claim 1 is characterized in that impact tong (5) also has 6 chucking oil cylinders (86), and dop (83) also is contained in the chuck body (84); Pincers handle (87) one ends are fixing with pin (85) and chuck body (84), the other end is connected with the piston rod of punch oil cylinder (89) with pincers handle pins (88), punch oil cylinder (89) is an end hinge formula, its hinge cooperates with the hinge cover of side plate (81), there is cylindrical step at chuck body (84) two ends, the hole of biside plate (81) cooperates with it respectively, and mounting flange (82) all on the side plate is equipped with gusset frame (90) on the side plate.
4. hydraulic disassembling and assembling machine according to claim 1, it is characterized in that quick spinner (94) is contained in above the lead (93), the corner of support (92) is equipped with connecting plate (95), is used to connect quick spinner assembly (6) and base assembly (4), uses bolting; Clamping cylinder (91) is fixed on above the side plate of support (92); The output shaft of hydraulic motor (100) is connected by key with the through hole of gear shaft (101) one ends, friction pulley (96) is contained on the friction wheel axle (99) with key with gear (97), and gear shaft (101), friction pulley (96), gear (97), friction wheel axle (99) all are contained in the housing (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115657 CN2740341Y (en) | 2004-11-18 | 2004-11-18 | Multi-purpose hydraulic disassembling-assembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115657 CN2740341Y (en) | 2004-11-18 | 2004-11-18 | Multi-purpose hydraulic disassembling-assembling device |
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| Publication Number | Publication Date |
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| CN2740341Y true CN2740341Y (en) | 2005-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115657 Expired - Fee Related CN2740341Y (en) | 2004-11-18 | 2004-11-18 | Multi-purpose hydraulic disassembling-assembling device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758375A (en) * | 2008-12-11 | 2010-06-30 | 天津市正平机械新技术有限公司 | Hydraumatic changer of screw drill tool |
| CN102049678A (en) * | 2009-11-10 | 2011-05-11 | 天津市正平机械新技术有限公司 | Simplified disassembly and assembly device |
| CN102704963A (en) * | 2012-06-07 | 2012-10-03 | 山西沁新能源集团股份有限公司 | Large multifunctional dismounting machine |
| CN104209736A (en) * | 2014-09-11 | 2014-12-17 | 郑州贝龙液压技术有限公司 | Special vehicle for disassembling flange plate and lining plate bolt of large grinding machine |
-
2004
- 2004-11-18 CN CN 200420115657 patent/CN2740341Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758375A (en) * | 2008-12-11 | 2010-06-30 | 天津市正平机械新技术有限公司 | Hydraumatic changer of screw drill tool |
| CN101758375B (en) * | 2008-12-11 | 2013-05-08 | 天津市正平机械新技术有限公司 | Hydraumatic changer of screw drill tool |
| CN102049678A (en) * | 2009-11-10 | 2011-05-11 | 天津市正平机械新技术有限公司 | Simplified disassembly and assembly device |
| CN102704963A (en) * | 2012-06-07 | 2012-10-03 | 山西沁新能源集团股份有限公司 | Large multifunctional dismounting machine |
| CN104209736A (en) * | 2014-09-11 | 2014-12-17 | 郑州贝龙液压技术有限公司 | Special vehicle for disassembling flange plate and lining plate bolt of large grinding machine |
| CN104209736B (en) * | 2014-09-11 | 2016-08-17 | 郑州贝龙液压技术有限公司 | Large-sized grinder ring flange and lining-plate bolt dismounting special-purpose vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANDONG PETROLEUM TECHNOLOGY( GROUP ) CO., LTD. Free format text: FORMER NAME OR ADDRESS: ANDONGAOER ENGINEERING TECHNOLOGY LLC, BEIJING |
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| CP03 | Change of name, title or address |
Address after: 100102, Beijing, Chaoyang District, home to the East Road, No. 5, King Jing family building, three floor Patentee after: Andong Petroleum Technology (Group) Co., Ltd. Address before: 100102, Beijing, Chaoyang District, home to the East Road, No. 5, King Jing family building, three floor Patentee before: Andongaoer Engineering Technology Co., Ltd., Beijing |
|
| DD01 | Delivery of document by public notice |
Addressee: Anton Oilfield Services (Group) Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Anton Oilfield Services (Group) Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20121118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |