CN210156309U - Dual-output type pressure-adjustable pressure switch for fire fighting - Google Patents
Dual-output type pressure-adjustable pressure switch for fire fighting Download PDFInfo
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- CN210156309U CN210156309U CN201921465360.3U CN201921465360U CN210156309U CN 210156309 U CN210156309 U CN 210156309U CN 201921465360 U CN201921465360 U CN 201921465360U CN 210156309 U CN210156309 U CN 210156309U
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000010079 rubber tapping Methods 0.000 claims abstract description 27
- 230000009977 dual effect Effects 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a fire control is with adjustable pressure switch of dual output formula. A dual-output pressure-adjustable pressure switch for fire fighting comprises 2 micro switches, a bottom shell, an upper shell, a bottom plate and a top cover, wherein inclined medium channels communicated with the bottoms of 2 circular pits are respectively arranged on two opposite sides of the upper part of the pipe wall of an external thread tubular part at the lower end of the bottom shell; the two round hollow cavities arranged on the upper shell are respectively matched and corresponding to 2 round pits arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the upper shell and the bottom shell are fixedly connected in a sealing manner by using at least 8 high-low thread self-tapping screws; the device also comprises a microswitch contact triggering device. The utility model meets the requirements of different alarm pressures of high and low pressures of customers and realizes double-output high and low pressure alarm; the utility model has simple structure design and is convenient for clients to install; the investment of fire fighting equipment and the maintenance cost of personnel are reduced.
Description
Technical Field
The utility model belongs to an accessory article of fire-fighting equipment, in particular to a dual-output type pressure-adjustable pressure switch for fire-fighting.
Background
Pressure actuated switches are used in automatic fire sprinkler systems to detect water flow pressure conditions, such as in wet piping systems having alarm check valves, pre-operator valves, or deluge alarm valves. The alarm pressure set under different working conditions is different, and some alarm pressure values need to be set for alarm, so that an electronic pressure switch is popular in the market in these years and is used for replacing an electric contact pressure gauge and being used on a system with higher industrial control requirement. Is characterized in that: the electronic display screen is visual, the precision is high, the control point is convenient to set through the display screen, but the relative price is higher, power needs to be supplied, and the maintenance cost is higher. The requirements of different high and low pressure alarm pressures of a client and double-output high and low pressure alarm are met, the structural design is simple, and the client installation is convenient; reducing the investment of the fire fighting equipment and the maintenance cost of personnel is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a dual-output pressure-adjustable pressure switch for fire fighting is provided. The dual-output type pressure-adjustable pressure switch for fire fighting can meet different high and low pressure alarm pressures of customers and realize the requirements of dual-output high and low pressure alarm, has simple structural design and is convenient for the customers to install; the investment of the fire fighting equipment and the maintenance cost of personnel are reduced.
The utility model provides a technical scheme of above-mentioned technical problem is: the utility model provides a fire control is with adjustable pressure switch of dual output formula, includes 2 micro-gap switches, characterized by: the lower end of the bottom shell is an external thread tubular part, 2 circular pits are arranged on the longitudinal center of the top surface at intervals, and two opposite sides of the upper part of the pipe wall of the external thread tubular part at the lower end of the bottom shell are respectively provided with an inclined medium channel communicated with the bottoms of the 2 circular pits;
the upper shell is provided with two circular hollow cavities, the two circular hollow cavities arranged on the upper shell are respectively matched and corresponding to 2 circular pits which are arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the lower bottom surfaces of the two circular hollow cavities arranged on the upper shell can respectively be in sealing contact with the upper top surfaces of the 2 circular pits which are arranged at intervals on the longitudinal center of the top surface of the bottom shell; the contact surface of the upper shell and the bottom shell is a sealing contact surface, and the upper shell and the bottom shell are fixedly connected in a sealing way by using at least 8 high-low thread self-tapping screws; the 2 micro switches are arranged on the top surface of the upper shell by using a micro switch bracket and a high-low tooth self-tapping screw, and the 2 micro switches arranged on the top surface of the upper shell by using the micro switch bracket and the high-low tooth self-tapping screw correspond to the two circular hollow cavities arranged on the upper shell respectively; the bottom plate is fixedly connected with the upper shell in a sealing mode through the high-low thread self-tapping screw, and the top cover is fixedly connected with the bottom plate in a sealing mode through the high-low thread self-tapping screw and the sealing gasket; the device also comprises microswitch contact triggering devices, wherein the number of the microswitch contact triggering devices is 2;
the microswitch contact triggering device comprises a pressure membrane, a push rod, a spring and a regulation triggering pressure nut, wherein the push rod is a push rod with a raised head at one end, the regulation triggering pressure nut is in an inverted hollow convex shape, an external thread is arranged on the outer surface of a smaller part of the inverted hollow convex shape regulation triggering pressure nut, 2 pressure membranes are respectively installed in two circular hollow cavities arranged on the upper shell in a sealing manner, 2 pressure membranes installed in the two circular hollow cavities of the upper shell in the sealing manner can respectively slide up and down in a sealing manner, 2 push rods are respectively installed in the two circular hollow cavities of the upper shell provided with 2 pressure membranes by using the raised head at one end, the lower bottom surfaces of the raised heads at one end of the 2 push rods are respectively pressed on the upper surfaces of the 2 pressure membranes installed in the two circular hollow cavities of the upper shell, 2 spring sleeves are respectively sleeved on 2 ejector rods with raised heads at one end, which are arranged in two circular hollow cavities of the upper shell, 2 adjusting and triggering pressure nuts in the shape of inverted hollow raised heads are respectively arranged on the top surfaces of the upper ends of the two circular hollow cavities arranged on the upper shell by using external thread sleeves arranged on the outer surfaces of the smaller parts of the adjusting and triggering pressure nuts, the upper end parts of the two ejector rods with raised heads at one end, which are arranged in the two circular hollow cavities of the upper shell, are respectively extended out of 2 hollow through holes of the adjusting and triggering pressure nuts in the shape of inverted hollow raised heads to form vacant ends, the upper end parts of 2 mandrils which are arranged in two circular hollow cavities of the upper shell and have raised heads respectively extend out of 2 vacant end parts which are formed by adjusting and triggering hollow through holes of a pressure nut in an inverted hollow raised head shape, and the vacant end parts can respectively correspond to contacts of 2 microswitches which are arranged on the top surface of the upper shell by using a microswitch bracket and a high-low thread self-tapping screw; 2 larger parts of the inverted hollow convex adjusting and triggering pressure nuts are rotated, and the lower bottom surfaces of the larger parts of the 2 inverted hollow convex adjusting and triggering pressure nuts can respectively apply different pressures to 2 push rods with raised heads at one ends and 2 springs sleeved on the 2 push rods; the upper end part of 2 mandrils with raised heads arranged at one end in two circular hollow cavities of the upper shell respectively extends out of 2 vacant end heads formed by hollow through holes of the adjusting and triggering pressure nut in the shape of an inverted hollow raised head, and can respectively trigger contacts of 2 micro switches arranged on the top surface of the upper shell by using a micro switch bracket and a high-low tooth self-tapping screw.
The utility model discloses the working process is: on fluid pipeline or automatic use equipment such as the fire that spouts, use the utility model discloses the pipe wall external screw thread that two output formula adjustable pressure switch bottom shells lower extreme set up is connected with above-mentioned equipment. Open the utility model discloses the top cap connects out the connecting wire from bottom plate lower surface hole, installs respectively on 2 micro-gap switch's binding post, when connecting micro-gap switch binding post COM end and NO end simultaneously, micro-gap switch is normally open state this moment, and when pressure reached this pressure switch settlement pressure, the micro-gap switch contact triggered, and pressure signal turns into the signal of telecommunication. When the COM end and the NC end of the wiring terminal of the microswitch are connected at the same time, the microswitch is in a normally closed state at the moment, and when the pressure reaches the set pressure of the pressure switch, the contact of the microswitch is triggered, and the electric signal is cut off. Through 2 rotatory down cavity convex heads that are respectively and adjust the pressure nut that triggers, set for the utility model discloses the high low pressure of the adjustable pressure switch of two output formulas triggers pressure, covers the top cap. When the pressure bearing of the double-output type pressure-adjustable pressure switch of the utility model is larger than the set low-pressure value, the low-pressure membrane sets pressure corresponding to the micro-switch contact trigger device and pushes the ejector rod with a raised head at one end to move upwards to trigger 1 micro-switch, so that the pressure signal is converted into an electric signal to form low-pressure alarm; when the pressure is continuously increased and the pressure bearing of the pressure switch is greater than a set high-pressure value, the high-pressure diaphragm sets the pressure corresponding to the microswitch contact triggering device and pushes the ejector rod with the raised head at one end to move upwards to trigger the other 1 microswitch, so that a pressure signal is converted into an electric signal to form high-pressure alarm; when the pressure of the double-output pressure-adjustable pressure switch of the utility model is reduced to be less than the set high pressure, the ejector rod with a raised head at one end and the pressure diaphragm slide down under the action of the thrust of the spring sleeved with the ejector rod and return to the initial state, and the high pressure signal is removed; pressure continues to descend, works as the utility model discloses but dual output formula pressure regulating switch receives pressure and falls to when being less than the settlement low pressure, and one end has plush copper ejector pin and pressure diaphragm and glides under the spring thrust effect of its cover installation and reply initial condition, and low pressure signal removes.
The utility model has the advantages that: because the utility model is provided with 2 micro switches, a bottom shell, an upper shell, a bottom plate and a top cover, the lower end of the bottom shell is of an external thread tubular structure, 2 circular pits are arranged on the longitudinal center of the top surface at intervals, and two opposite sides of the upper part of the pipe wall of the external thread tubular structure at the lower end of the bottom shell are respectively provided with an inclined medium channel communicated with the bottoms of the 2 circular pits; the upper shell is provided with two circular hollow cavities, the two circular hollow cavities arranged on the upper shell are respectively matched and corresponding to 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the lower bottom surfaces of the two circular hollow cavities arranged on the upper shell can respectively be in sealing contact with the upper top surfaces of the 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell; the contact surface of the upper shell and the bottom shell is a sealing contact surface, and the upper shell and the bottom shell are fixedly connected in a sealing way by using at least 8 high-low thread self-tapping screws; the 2 micro switches are arranged on the top surface of the upper shell by using a micro switch bracket and high-low tooth self-tapping screws, and the 2 micro switches arranged on the top surface of the upper shell by using the micro switch bracket high-low tooth self-tapping screws correspond to the two circular hollow cavities arranged on the upper shell respectively; the bottom plate is fixedly connected with the upper shell in a sealing way by using a high-low thread self-tapping screw, and the top cover is fixedly connected with the bottom plate in a sealing way by using a high-low thread self-tapping screw and a sealing gasket; and 2 microswitch contact triggering devices are also arranged. The utility model meets the requirements of different alarm pressures of high and low pressures of customers and realizes double-output high and low pressure alarm; the utility model has simple structure design and is convenient for clients to install; the investment of fire fighting equipment and the maintenance cost of personnel are reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a schematic structural view of the appearance of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
in the drawings: 1. the micro-gap switch, 2, bottom shell, 3, upper shell, 4, bottom plate, 5, top cover, 21, external thread tubular part, 22, round pit, 23, inclined medium channel, 31, round hollow cavity, 6, sealing pad, 7, pressure membrane, 8, top rod, 9, spring, 10, regulating and triggering pressure nut.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
As shown in fig. 1 and 2, a dual-output type pressure-adjustable pressure switch for fire fighting comprises 2 micro switches 1, and is characterized in that: the device is characterized by further comprising a bottom shell 2, an upper shell 3, a bottom plate 4 and a top cover 5, wherein the lower end of the bottom shell 2 is provided with an external thread tubular part 21, 2 circular pits 22 are arranged on the longitudinal center of the top surface at intervals, and two opposite sides of the upper part of the pipe wall of the external thread tubular part at the lower end of the bottom shell 2 are respectively provided with an inclined medium channel 23 communicated with the bottoms of the 2 circular pits 22;
the upper shell 3 is provided with two circular hollow cavities 31, the two circular hollow cavities 31 arranged on the upper shell 3 are respectively matched and corresponding to the 2 circular pits 22 arranged at intervals on the longitudinal center of the top surface of the bottom shell 2, and the lower bottom surfaces of the two circular hollow cavities 31 arranged on the upper shell 3 can be respectively in sealing contact with the upper top surfaces of the 2 circular pits 22 arranged at intervals on the longitudinal center of the top surface of the bottom shell 2; the contact surface of the upper shell 3 and the bottom shell 2 is a sealing contact surface, and the upper shell 3 and the bottom shell 2 are fixedly connected in a sealing way by using 8 high-low thread self-tapping screws; the 2 micro switches 1 are arranged on the top surface of the upper shell 3 by using a micro switch bracket and a high-low tooth self-tapping screw, and the 2 micro switches 1 arranged on the top surface of the upper shell 3 by using the micro switch bracket and the high-low tooth self-tapping screw correspond to the two circular hollow cavities 31 arranged on the upper shell 3 respectively; the bottom plate 4 is fixedly connected with the upper shell 3 in a sealing way by using high and low thread self-tapping screws, and the top cover 5 is fixedly connected with the bottom plate 4 in a sealing way by using high and low thread self-tapping screws and a sealing gasket 6; the device also comprises microswitch contact triggering devices, wherein the number of the microswitch contact triggering devices is 2;
the microswitch contact triggering device comprises a pressure diaphragm 7, an ejector rod 8, a spring 9 and a trigger pressure adjusting nut 10, wherein the pressure diaphragm 7 is made of ethylene propylene diene monomer rubber, the hardness is 45-50 degrees, the tension is small, and the alarm error can be reduced; the ejector rod 8 is an ejector rod with a raised head at one end, the adjusting and triggering pressure nut 10 is in an inverted hollow convex shape, and an external thread is arranged on the outer surface of a smaller part of the adjusting and triggering pressure nut in the inverted hollow convex shape; 2 pressure membranes 7 are respectively installed in two circular hollow cavities 31 arranged on the upper shell 3 in a sealing manner, 2 pressure membranes 7 installed in the two circular hollow cavities 31 of the upper shell in a sealing manner can respectively slide up and down in the two circular hollow cavities 31 of the upper shell in a sealing manner, 2 ejector rods are respectively installed in the two circular hollow cavities 31 of the upper shell provided with the 2 pressure membranes 7 by using a raised head at one end of each ejector rod, the lower bottom surfaces of the raised heads at one ends of the 2 ejector rods are respectively pressed on the upper top surfaces of the 2 pressure membranes 7 installed in the two circular hollow cavities 31 of the upper shell in a pressing manner, 2 springs 9 are respectively sleeved on the 2 ejector rods installed in the two circular hollow cavities 31 of the upper shell in a covering manner, and 2 adjusting and triggering pressure nuts in the shape of an inverted hollow raised head are respectively installed on the top surfaces of the upper ends of the two circular hollow cavities 31 arranged on the upper shell 3 by using external thread sleeves arranged on the outer surfaces of, the upper end parts of 2 ejector rods with raised heads at one end of the two circular hollow cavities 31 of the upper shell respectively extend out 2 hollow through holes of the adjusting and triggering pressure nut in the shape of an inverted hollow convex head to form vacant end heads, and the upper end parts of 2 ejector rods with raised heads at one end of the two circular hollow cavities 31 of the upper shell respectively extend out 2 vacant end head parts of hollow through holes of the adjusting and triggering pressure nut in the shape of an inverted hollow convex head to form vacant end heads which respectively correspond to contacts of 2 micro switches 1 which are arranged on the top surface of the upper shell by using a micro switch bracket and a high-low thread self-tapping screw; 2 larger parts of the inverted hollow convex adjusting and triggering pressure nuts are rotated, and the lower bottom surfaces of the larger parts of the 2 inverted hollow convex adjusting and triggering pressure nuts can respectively apply different pressures to 2 push rods with raised heads at one ends and 2 springs 9 sleeved on the 2 push rods; the upper end parts of 2 mandrils with raised heads at one end in two round hollow cavities 31 of the upper shell respectively extend out of 2 vacant end heads formed by hollow through holes of the adjusting and triggering pressure nut in the shape of an inverted hollow raised head, and can respectively trigger contacts of 2 micro switches 1 which are arranged on the top surface of the upper shell by using a micro switch bracket and a high-low tooth self-tapping screw.
From the above description, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention, and the present invention is within the protection scope of the present invention. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.
Claims (1)
1. The utility model provides a fire control is with adjustable pressure switch of dual output formula, includes 2 micro-gap switches, characterized by: the lower end of the bottom shell is an external thread tubular part, 2 circular pits are arranged on the longitudinal center of the top surface at intervals, and two opposite sides of the upper part of the pipe wall of the external thread tubular part at the lower end of the bottom shell are respectively provided with an inclined medium channel communicated with the bottoms of the 2 circular pits;
the upper shell is provided with two circular hollow cavities, the two circular hollow cavities arranged on the upper shell are respectively matched and corresponding to 2 circular pits which are arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the lower bottom surfaces of the two circular hollow cavities arranged on the upper shell can respectively be in sealing contact with the upper top surfaces of the 2 circular pits which are arranged at intervals on the longitudinal center of the top surface of the bottom shell; the contact surface of the upper shell and the bottom shell is a sealing contact surface, and the upper shell and the bottom shell are fixedly connected in a sealing way by using at least 8 high-low thread self-tapping screws; the 2 micro switches are arranged on the top surface of the upper shell by using a micro switch bracket and a high-low tooth self-tapping screw, and the 2 micro switches arranged on the top surface of the upper shell by using the micro switch bracket and the high-low tooth self-tapping screw correspond to the two circular hollow cavities arranged on the upper shell respectively; the bottom plate is fixedly connected with the upper shell in a sealing mode through the high-low thread self-tapping screw, and the top cover is fixedly connected with the bottom plate in a sealing mode through the high-low thread self-tapping screw and the sealing gasket; the device also comprises microswitch contact triggering devices, wherein the number of the microswitch contact triggering devices is 2;
the microswitch contact triggering device comprises a pressure membrane, a push rod, a spring and a regulation triggering pressure nut, wherein the push rod is a push rod with a raised head at one end, the regulation triggering pressure nut is in an inverted hollow convex shape, an external thread is arranged on the outer surface of a smaller part of the inverted hollow convex shape regulation triggering pressure nut, 2 pressure membranes are respectively installed in two circular hollow cavities arranged on the upper shell in a sealing manner, 2 pressure membranes installed in the two circular hollow cavities of the upper shell in the sealing manner can respectively slide up and down in a sealing manner, 2 push rods are respectively installed in the two circular hollow cavities of the upper shell provided with 2 pressure membranes by using the raised head at one end, the lower bottom surfaces of the raised heads at one end of the 2 push rods are respectively pressed on the upper surfaces of the 2 pressure membranes installed in the two circular hollow cavities of the upper shell, 2 spring sleeves are respectively sleeved on 2 ejector rods with raised heads at one end, which are arranged in two circular hollow cavities of the upper shell, 2 adjusting and triggering pressure nuts in the shape of inverted hollow raised heads are respectively arranged on the top surfaces of the upper ends of the two circular hollow cavities arranged on the upper shell by using external thread sleeves arranged on the outer surfaces of the smaller parts of the adjusting and triggering pressure nuts, the upper end parts of the two ejector rods with raised heads at one end, which are arranged in the two circular hollow cavities of the upper shell, are respectively extended out of 2 hollow through holes of the adjusting and triggering pressure nuts in the shape of inverted hollow raised heads to form vacant ends, the upper end parts of 2 mandrils which are arranged in two circular hollow cavities of the upper shell and have raised heads respectively extend out of 2 vacant end parts which are formed by adjusting and triggering hollow through holes of a pressure nut in an inverted hollow raised head shape, and the vacant end parts can respectively correspond to contacts of 2 microswitches which are arranged on the top surface of the upper shell by using a microswitch bracket and a high-low thread self-tapping screw; 2 larger parts of the inverted hollow convex adjusting and triggering pressure nuts are rotated, and the lower bottom surfaces of the larger parts of the 2 inverted hollow convex adjusting and triggering pressure nuts can respectively apply different pressures to 2 push rods with raised heads at one ends and 2 springs sleeved on the 2 push rods; the upper end part of 2 mandrils with raised heads arranged at one end in two circular hollow cavities of the upper shell respectively extends out of 2 vacant end heads formed by hollow through holes of the adjusting and triggering pressure nut in the shape of an inverted hollow raised head, and can respectively trigger contacts of 2 micro switches arranged on the top surface of the upper shell by using a micro switch bracket and a high-low tooth self-tapping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921465360.3U CN210156309U (en) | 2019-09-04 | 2019-09-04 | Dual-output type pressure-adjustable pressure switch for fire fighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921465360.3U CN210156309U (en) | 2019-09-04 | 2019-09-04 | Dual-output type pressure-adjustable pressure switch for fire fighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210156309U true CN210156309U (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921465360.3U Withdrawn - After Issue CN210156309U (en) | 2019-09-04 | 2019-09-04 | Dual-output type pressure-adjustable pressure switch for fire fighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210156309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391110A (en) * | 2019-09-04 | 2019-10-29 | 济南迈克阀门科技有限公司 | A kind of fire-fighting double output type pressure-adjustable pressure switch |
-
2019
- 2019-09-04 CN CN201921465360.3U patent/CN210156309U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391110A (en) * | 2019-09-04 | 2019-10-29 | 济南迈克阀门科技有限公司 | A kind of fire-fighting double output type pressure-adjustable pressure switch |
| CN110391110B (en) * | 2019-09-04 | 2024-04-26 | 济南迈克阀门科技有限公司 | Double-output type pressure-adjustable pressure switch for fire control |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200317 Effective date of abandoning: 20240426 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200317 Effective date of abandoning: 20240426 |