CN2172881Y - Industrial instrument and automatic control system adjusting instrument - Google Patents
Industrial instrument and automatic control system adjusting instrument Download PDFInfo
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- CN2172881Y CN2172881Y CN 94200808 CN94200808U CN2172881Y CN 2172881 Y CN2172881 Y CN 2172881Y CN 94200808 CN94200808 CN 94200808 CN 94200808 U CN94200808 U CN 94200808U CN 2172881 Y CN2172881 Y CN 2172881Y
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- 238000012795 verification Methods 0.000 claims abstract description 25
- 230000005669 field effect Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005622 photoelectricity Effects 0.000 description 4
- 230000005619 thermoelectricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- IYZMXHQDXZKNCY-UHFFFAOYSA-N 1-n,1-n-diphenyl-4-n,4-n-bis[4-(n-phenylanilino)phenyl]benzene-1,4-diamine Chemical compound C1=CC=CC=C1N(C=1C=CC(=CC=1)N(C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 IYZMXHQDXZKNCY-UHFFFAOYSA-N 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
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Abstract
The regulator for industrial instrument and automatic control system features that it is designed with monolithic computer as core and large scale integrated circuit and has stored working program. The main function of the device is to send out an instruction to retrace the keyboard input signal, process the keyboard value, send out signals to each part and receive and process the sent signals through the photoelectric isolation full-duplex serial communication circuit according to different instructions, and then send the signals to the display part for display, thus not only completing the verification of various industrial instruments, but also verifying the thermocouple or the thermal resistor and calibrating the automatic control system.
Description
The utility model relates to a kind of tester of industrial instrument, refers in particular to a kind of programmable intelligent regulator.
At present, existing industrial instrument tester, as DFX-06 tester, IDS-141B tester etc., the big weight of their volumes is big, can only the verification industrial instrument, and can not the verification thermal resistance, thermopair, can not automatic control system be debugged; Existing thermoelectricity occasionally the thermal resistance tester can only verification thermoelectricity thermal resistance occasionally, and can not the verification industrial instrument, can not debug automatic control system.In addition, signal that existing tester is imported such as electric current, voltage, resistance value etc. can only be used manual knob, and show with digital watch and measure, on one side turning knob, see the table indication on one side, very inconvenient, and also time-consuming.
The purpose of this utility model be to overcome the deficiency in the background technology and provide a kind of can the verification industrial instrument, again can the verification thermal resistance or the multi-functional regulator of thermopair and automatic control system.
The purpose of this utility model is achieved in that mainly by main control part, the simulating signal input, verification of thermal resistance thermopair and millivolt signal resistance signal output, pulse signal switching value input, demonstration and keyboard portion and power supply partly wait and connect to form, it is characterized in that: main control part is by communicating circuit and simulating signal input that its inside was provided with, verification of thermal resistance thermopair and millivolt signal output, pulse signal switching value input and demonstration are connected with keyboard portion, each several part all partly is connected with power supply, wherein
1) memory under program, three that mainly can be wiped by single-chip microcomputer, data memory, octal latch, memory under program, electricity of main control part, eight code translators, two four inputs or door, I/O extended chip and two-wire system bidirectional linked list communicating circuit are connected to form;
2) the simulating signal input is mainly connected to form with door, the low accurate data amplifier of drift and high precision voltage controlled current source etc. by single-chip microcomputer, counter, double integral A/D converter, three groups of analog switches of two two inputs, two 8 latchs, 16 D/A converters, operational amplifier, two inputs four;
3) but the verification of thermal resistance thermopair and millivolt signal resistance signal output are mainly connected to form by the high-accuracy wire-wound resistor of single-chip microcomputer, programmable counter, double integration A/D converter, two two eight path analoging switch, counter, GAL programmable logic array, three groups of analog switches of two inputs, the low accurate data amplifier gain data amplifier of drift and MOSFET model field effect transistor and different resistances etc.;
4) pulse signal switching value input is mainly connected to form by single-chip microcomputer, counter, programmable counter, 7 quick photoelectrical couplers and two inputs and gate driver etc.
Advantage of the present utility model is: not only can the various industrial instruments of adjustment, as instrument such as DDZ-II type, DDZ-III type, DDZ-S, I series, DK series, also can the various registering instruments of verification, read out instrument, simultaneously five thermal resistances of verification or thermopair can also be directly and industrial instrument composition automatic control system, in the laboratory or the scene carry out dynamic debugging, or the experiment simulation of realization operating characteristic, ask for the optimizer system composition or ask for duty, best setting parameter; Owing to touching film keyboard programming input,, just can on display, demonstrate corresponding numerical value, overcome the disadvantage of manual knob so need only the numerical value of input signal on keyboard; Because adopting advanced single-chip microcomputer is core, is formed by large scale integrated circuit design, so volume is little, in light weight, use easy to carry, advanced technology, its full accuracy can reach 0.05F.S ± bd, and is widely used, and is that factory and enterprise research unit is standing, the tester of the renewable replacement.
Fig. 1 is a complete machine functional-block diagram of the present utility model.
Fig. 2 is a main control part principle of work circuit diagram of the present utility model.
Fig. 3 is the principle of work circuit diagram of simulating signal input of the present utility model.
Fig. 4 is thermal resistance thermopair of the present utility model verification and millivolt signal resistance signal output principle of work circuit diagram.
Fig. 5 is a pulse signal switching value input principle of work circuit diagram of the present utility model.
Below in conjunction with Figure of description and embodiment, the utility model is further described.
As shown in Figure 1, the utility model is mainly by main control part 1, simulating signal input 2, verification of thermal resistance thermopair and millivolt signal resistance signal output 3, pulse signal switching value input 4, demonstration and keyboard portion 5 and power supply part 6 etc. connect to form, it is characterized in that: main control part 1 is by communicating circuit and simulating signal input 2 that its inside was provided with, verification of thermal resistance thermopair and millivolt signal output 3, pulse signal switching value input 4 and demonstration are connected with keyboard portion 5, and each several part all is connected with power supply part 6.
When certain instrument of verification, at first by showing and keyboard portion 5 input respective symbols and data, treated be the standard key value signal after, send into the communicating circuit of main control part 1 by TXD and RXD two I/O mouth lines, import main control part 1 into, after handling by analysis,, (need send into verification of thermal resistance thermopair and millivolt signal resistance signal output 3 as resistance signal by communicating circuit dispensing each several part according to different signals; Then send into analog quantity input 2 as simulating signal; Then need send into pulse signal switching value input 4 as pulse signal or switching value).Export corresponding numerical value by each several part again, show then to send into by communicating circuit as need to show and keyboard portion 5, by the indicated data of liquid crystal display displays by main control part 1.Wherein the data between the each several part transmit all by communicating circuit RXD and two I/O oral instructions of TXD give, the each several part power supply provides 9VDC power supply by power unit 6, each several part becomes separately required voltage to keep power supply by separately DC/DC transducer (not marking among the figure) again.
As shown in Figure 2, main control part 1 is mainly by 16 bit CPU single-chip microcomputer IC
1-1(8098), 8K data memory IC
1-2(6264), octal latch IC
1-3(74LS373), 32K memory under program IC
1-4(27256), the electricity 8K memory under program IC that can wipe
1-5(2864), three, eight code translator IC
1-6(74LS138), two four inputs or door IC
1-7(74LS21), I/O extended chip (extendible 24 I/O mouth lines) IC
1-8(8255), three two input analog switch IC
1-9(4053), 2 photoelectrical coupler IC
1-10, IC
1-11(TIL117) connect to form, wherein,
Communicating circuit is by IC
1-9, IC
1-10And IC
1-11Form the bidirectional linked list communication port that a band photoelectricity is isolated;
IC
1-1～IC
1-8Form one and have 32KEPROM, 8KRAM, 8KEEPROM and a plurality of I/O mouth line for input and output, and pre-deposit working routine, its major function is to send instruction to remove the flyback keyboard input signal, carrying out the keyboard value handles, can be according to different instruction, send signal and receive the signal that each several part is sent here to each input 2,3,4 by communicating circuit, send into demonstration and keyboard portion 5 after treatment and show.
The utility model adopts multimachine master-slave mode communication modes, by main control part 1 is main frame, simulating signal input 2, the verification of thermal resistance thermopair and millivolt signal resistance signal output 3, pulse signal switching value input 4 and demonstration and keyboard portion 5 are slave, when main control part 1 when its slave sends order and data, signal TDATA sends into IC
1-9B group switch control end because two input end Y of B group switch
0, Y
1Level inconsistent, when switch closure and conducting,, pass through IC again with regard to the signal after the output level conversion
1-11After photoelectricity was isolated, output signal received for slave to RXD mouth line.When main control part 1 was accepted by the order of slave passback and data, signal was issued to TDX by slave, passes through IC
1-10Photoelectricity is delivered to IC after isolating
1-9The control end of A group switch, the signal RDATA after level translation just can be for the main frame reception.
As shown in Figure 3, simulating signal input 2 is mainly by single-chip microcomputer (band 2KROM, 128 byte RAM in the machine) IC
2-1(8751), tetrad counter IC
2-2(74LS191), double integral A/D converter IC
2-3(7135), two analog switches (CD4053) IC
2-4, IC
2-11, two 8 latchs (74LS273) IC
2-7, IC
2-8, 16 D/A conversion IC
2-9(AD-DAC71-V), operational amplifier IC
2-5(OPO7), two inputs four and door (74LS32) IC
2-6A, IC
2-6B, the accurate data amplifier IC of low drift
2-10And high precision voltage controlled current source (YKDI) etc. connects to form, and it can detect and export various voltages, current signal.
When input signal is imported through input terminal 1,2, if current signal needs according to different ranges, through IC
2-4Switch switches, through R
1Or R
2Be converted to voltage signal, its voltage signal is through IC
2-5Operational amplifier becomes the O-2VDC signal, enters IC
2-3Analog quantity is transformed to digital signal, sends into IC again
2-1Two I/O mouths of single-chip microcomputer, the signal of being imported carried out computing after, then, send into main control part 1 by TXD, RXD through communicating circuit and carry out processing controls, by main frame through calculating respective value, again by showing and keyboard portion 5 demonstrates.
When output signal is from showing and 5 input signal values of keyboard portion, can send into main control part 1 by communicating circuit and carry out mainframe program and handle, through communicating circuit signal is sent into IC in the simulating signal input 2 again
2-1In the single-chip microcomputer, by programmed control process IC
2-7, IC
2-8After latching, send into IC
2-9, after D/A converter becomes analog quantity, enter IC
2-10Data amplifier carries out the voltage range conversion, again through IC
2-11Control output voltage or current signal and range conversion, voltage export terminal 3 and 4 to; Current signal is through IC
2-11Switch and remove to control IC
2-12The current signal of being exported is to terminal 5 and 6.It can measure and export signals such as 0-5VDC, 0-10VDC, 1-5VDC, 0-10mADC, 0-30mADC and 4-20mADC.
The utility model is to be provided with four and the identical circuit of above-mentioned functions on same bar printing plate, then can have four groups of signals to carry out signal output through four groups of terminals simultaneously, and input signal is measured.No matter select which type of signal, all can (not mark) operation among the figure on touching the film keyboard, carry out programmed control by master control part 1, its output is the result can show on display.
As shown in Figure 4, verification of thermal resistance thermopair and millivolt signal resistance output 3 are mainly by single-chip microcomputer IC
3-1, programmable calculator IC
3-2(8253), double integration A/D converter IC
3-3(7153), two two eight path analoging switch (4097B) IC
3-4, IC
3-5, counter IC
3-6(74LS191), GAL programmable logic array IC
3-7(IO16/4), analog switch IC
3-8(CD4053), low drift accuracies data are gone into big device IC
3-9(OP-07) but gain data amplifier IC
3-10(AD620) and four MOSFET model field effect transistor MOSFET
1～MOSFET
4And four high-accuracy wire-wound resistor R of different resistances
1～R
4Deng connecting to form, it can detect and export five thermal resistance thermocouple signals simultaneously.
Imported by plug-in unit CJ1 when five road signals, also need external a tunnel are used for the resistive element and two tunnel self check self-correcting resistance of cold junction compensation, through IC
3-4And IC
3-5After eight road Data-logging switches of forming switch, occasionally behind the thermal resistance translation circuit, enter IC through thermoelectricity again
3-11The data amplifier of forming forms the 0-2VDC signal, enters IC
3-3A/D converter converts digital quantity to and delivers to IC
1-1Two I/O mouths of single-chip microcomputer calculate and processing such as gamma correction then, send into main control part 1 through communicating circuit again by TXD, RXD and handle, and the result is sent into display show; When millivolt signal is exported, give IC through communicating circuit by main control part 1
3-1Single-chip microcomputer is by programmed control IC
3-2Different pulse and the IC of counter 0 output pulse width
3-8The common pulse width modulator of forming, output 0-5VDC signal passes through by IC again
3-9The attenuator of forming becomes corresponding millivolt signal and outputs to terminal 3 and 4; When resistance signal is exported, if the primary element of check is digital wash, registering instrument, the temperature transmitter of thermal resistance input, can be directly on keyboard input calibration number and temperature value, so the efferent branch directly output be the resistance value of correspondence.Pass to IC by main control part 1 through communicating circuit
3-1Single-chip microcomputer, according to the difference of resistance by programmed control IC
3The output frequency of the output frequency of-2 counter 2 and I/O mouth P22, P23, P24, P25 is through IC
3-7After the FPGA (Field Programmable Gate Array) battle array is carried out programming in logic, export four stepped-up voltage signal Y1, Y2, Y3, Y4 and control four technotron MOSFET1-MOSFET4,, seal in four wire-wound resistor R that resistance is different respectively because of field effect transistor has the thyrite characteristic
1～R
4, output resistance in parallel is to terminal 1 and 2, and wherein the conversion of resistance and algorithm thereof are realized by routine processes.
As shown in Figure 5, pulse signal switching value input 4 is mainly by single-chip microcomputer IC
4-1(8751), counter IC
4-2(74LS191), programmable counter IC
4-3(8253), seven quick photoelectrical couplers (6N137) IC
4-4～IC
4-8, IC
4-10, IC
4-11Reach two inputs and gate driver IC
4-9Deng connecting to form, it can detection and output pulse signal, switching value.
When the input pulse signal, at first enter IC by terminal 1 and 2 or 3 and 4
4-4Or IC
4-5Photoelectricity enters IC after isolating then
4-3Counter 0 or the clock end of counter 1, by IC
4-1The programmed control frequency division, through IC
4-3Counter 0 or the delivery outlet of counter 1 to the IC of single-chip microcomputer
4-1Two I/O mouths count, by IC
4-1Delivering to main control part 1 through communicating circuit processs and displays; Output pulse signal is to send into main control part 1 by the required signal of keyboard input through communicating circuit, after main control part is handled, delivers to IC by communicating circuit again
4-1, IC
4-1Control IC
4-3The delivery outlet output pulse of counter 2 is through IC
4-6Carry out the photoelectricity isolation and output to 5 and 6 terminals; The output switching value is sent into main control part 1 by keyboard input desired signal value through communicating circuit, after main control part 1 is handled, delivers to IC by communicating circuit again
4-1, by IC
4-1Two I/O mouth P10, P11 export high-low level, pass through IC
4-8And IC
4-10After photoelectricity is isolated, again through IC
4-9Middle current drives relay J 1 and J2 output switching value are to terminal 7 and 8 or 9 and 10; The input switch amount is entered by input terminal 11 and 12 or 13 and 14, through IC
4-7Or IC
4-11Photoelectricity enters IC after isolating
4-1Two I/O mouth P12 or P13, enter main control part 1 through communicating circuit again and show.
Do not mark among demonstration and the keyboard portion 5(figure), adopt double 24 LCD, it is provided with character generator, can show 0-9 numeral and English alphabet and some characters.When work, main control part 1 transmits the signal and the mode that show by communicating circuit, demonstrates corresponding numerical value by data bus liquor charging crystal display; What keyboard adopted 4 * 7 rank scannings touches the film keyboard, when key is pressed, declares according to the state of sweep trace I/O and to know which key presses, handle become corresponding key assignments after, send into main control part 1 by communicating circuit again and handle.So with touching film keyboard programming input, as long as input function and numerical value on keyboard, as will be on keyboard input current value, magnitude of voltage, resistance value, on display, demonstrate occurrence, and just can export corresponding current value, magnitude of voltage and resistance value automatically at output terminal.For example want temperature transmitter of joining Pt100 of verification, carefully connect the wire earlier, temperature transmitter input is connected on 1 and 2 the terminal of Fig. 4, output terminal is connected on 1 and 2 terminals of Fig. 3, on keyboard, select calibration Pt100 to begin verification, as long as want 0 ℃ of verification each point temperature value in the keyboard input, 100 ℃, 200 ℃ ... 650 ℃ etc., and 1 and 2 terminals of Fig. 4 just output after through the kilsyth basalt of checking the mark automatically corresponding resistance value as 100.00 Ω, 138.50 Ω, 175.84 Ω ... 329.51 Ω etc., 1 and 2 ends of Fig. 3 are measured the output valve of temperature transmitter, can deliver to main control part 1, handle the back and just can show check results.
Do not provide physical circuit among the power supply part 6(figure), its input voltage is 220VAC, be transformed to the voltage (24VAC, 9VAC) of several different magnitudes of voltage by transformer, after overcommutation, filtering, voltage stabilizing, export 24VDC/1A, 24VAC/1A again, 220VAC, 9VDC/5A in addition can be for the power supplys of two-wire system transformer.Wherein the 9VDC power supply uses for each several part, and each several part becomes needed magnitude of voltage by separately DC/DC transducer again, and isolates power supply mutually.
Claims (1)
1, a kind of industrial instrument and automatic control system regulator, mainly by main control part, the simulating signal input, verification of thermal resistance thermopair and millivolt signal resistance signal output, pulse signal switching value input, demonstration and keyboard portion and power supply partly wait and connect to form, it is characterized in that: main control part is by communicating circuit and simulating signal input that its inside was provided with, verification of thermal resistance thermopair and millivolt signal output, pulse signal switching value input and demonstration are connected with keyboard portion, each several part all partly is connected with power supply, wherein
1) memory under program, three that mainly can be wiped by single-chip microcomputer, data memory, octal latch, memory under program, electricity of main control part, eight code translators, two four inputs or door, I/O extended chip and two-wire system bidirectional linked list communicating circuit are connected to form;
2) the simulating signal input is mainly connected to form with door, the low accurate data amplifier of drift and high precision voltage controlled current source etc. by single-chip microcomputer, counter, double integral A/D converter, three groups of analog switches of two two inputs, two 8 latchs, 16 D/A converters, operational amplifier, two inputs four;
3) but the verification of thermal resistance thermopair and millivolt signal resistance signal output are mainly connected to form by the high-accuracy wire-wound resistor of single-chip microcomputer, programmable counter, double integration A/D converter, two two eight path analoging switch, counter, GAL programmable logic array, three groups of analog switches of two inputs, the low accurate data amplifier gain data amplifier of drift and MOSFET model field effect transistor and different resistances etc.;
4) pulse signal switching value input is mainly connected to form by single-chip microcomputer, counter, programmable counter, 7 quick photoelectrical couplers and two inputs and gate driver etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94200808 CN2172881Y (en) | 1994-01-24 | 1994-01-24 | Industrial instrument and automatic control system adjusting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94200808 CN2172881Y (en) | 1994-01-24 | 1994-01-24 | Industrial instrument and automatic control system adjusting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172881Y true CN2172881Y (en) | 1994-07-27 |
Family
ID=33821046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94200808 Expired - Fee Related CN2172881Y (en) | 1994-01-24 | 1994-01-24 | Industrial instrument and automatic control system adjusting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172881Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447541C (en) * | 2006-05-23 | 2008-12-31 | 渤海船舶重工有限责任公司 | Multi-path output resistance signal generator |
| CN102620862A (en) * | 2012-03-19 | 2012-08-01 | 张金木 | Temperature checker |
| CN103457595A (en) * | 2012-06-01 | 2013-12-18 | 海尔集团公司 | Single chip microcomputer full duplex communication device and communication method |
| CN103487170A (en) * | 2013-09-30 | 2014-01-01 | 贵州航天计量测试技术研究所 | Device and method for calibrating multi-channel temperature inspecting instrument |
| CN103674329A (en) * | 2013-12-31 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Calibration system for temperature transmitter |
| CN107389116A (en) * | 2017-07-29 | 2017-11-24 | 北京广利核***工程有限公司 | The automatic test device and method of analog current transducer signal |
| CN112269346A (en) * | 2020-11-18 | 2021-01-26 | 崔家铭 | Intelligent instrument debugger |
-
1994
- 1994-01-24 CN CN 94200808 patent/CN2172881Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447541C (en) * | 2006-05-23 | 2008-12-31 | 渤海船舶重工有限责任公司 | Multi-path output resistance signal generator |
| CN102620862A (en) * | 2012-03-19 | 2012-08-01 | 张金木 | Temperature checker |
| CN102620862B (en) * | 2012-03-19 | 2014-02-19 | 张金木 | Temperature checker |
| CN103457595A (en) * | 2012-06-01 | 2013-12-18 | 海尔集团公司 | Single chip microcomputer full duplex communication device and communication method |
| CN103457595B (en) * | 2012-06-01 | 2016-06-15 | 海尔集团公司 | Single-chip microcomputer full duplex communication device and the means of communication |
| CN103487170A (en) * | 2013-09-30 | 2014-01-01 | 贵州航天计量测试技术研究所 | Device and method for calibrating multi-channel temperature inspecting instrument |
| CN103487170B (en) * | 2013-09-30 | 2015-10-21 | 贵州航天计量测试技术研究所 | A kind of multichannel temperature logging calibrating installation and calibration steps thereof |
| CN103674329A (en) * | 2013-12-31 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Calibration system for temperature transmitter |
| CN103674329B (en) * | 2013-12-31 | 2016-05-04 | 重庆川仪自动化股份有限公司 | A kind of calibration system of temperature transmitter |
| CN107389116A (en) * | 2017-07-29 | 2017-11-24 | 北京广利核***工程有限公司 | The automatic test device and method of analog current transducer signal |
| CN112269346A (en) * | 2020-11-18 | 2021-01-26 | 崔家铭 | Intelligent instrument debugger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: ROOM 7, MAILBOX 840, BEIJING CITY TO: JILIN PROVINCE SONGYUAN CITYCHANGSHAN CHEMICAL FERTILIZER PLANT, INSTRUMENT AND METERS FACTORY |
|
| CP03 | Change of name, title or address |
Address after: Songyuan Jilin Changshan chemical fertilizer plant instrument factory Patentee after: Cao Ying Address before: Room seven, box 840, Beijing, China Patentee before: Cao Ying |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |