CN206504834U - A kind of liquid leakage locating and detecting device - Google Patents
A kind of liquid leakage locating and detecting device Download PDFInfo
- Publication number
- CN206504834U CN206504834U CN201720075888.4U CN201720075888U CN206504834U CN 206504834 U CN206504834 U CN 206504834U CN 201720075888 U CN201720075888 U CN 201720075888U CN 206504834 U CN206504834 U CN 206504834U
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- leakage
- detecting device
- liquid leakage
- locating
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Abstract
The utility model discloses a kind of liquid leakage locating and detecting device, including：Box body；The tray interior is provided with embeded processor, data processing circuit, register, display circuit, warning circuit, power circuit, control relay circuit, circuit for remotely controlling, leakage detection circuit；It is installed on the positive control panel of the box body；LCDs, button, power indication LED, broken string LED alarm lamp, leakage LED alarm lamp are provided with the control panel；It is arranged at the induction cable connection end on the control panel top；It is arranged at the power connector end of the control panel bottom, relay connection end, communication indicator lamp, order wire connection end.The utility model can realize long range leakage detection and localization, with multinomial warning function, monitor leakage alarm location information by alarm lamp and LCDs, the input of configuration parameter is realized by host computer, it is possible to be integrated to remote monitoring system.
Description
Technical field
The utility model is related to leakage detection and localization technical field, more particularly to a kind of liquid leakage positioning inspection
Survey device.
Background technology
With the arrival of the development of economic level, particularly information age, we have begun to step into data life, number
According to safe transmission become particularly important, it is therefore desirable to lay a large amount of power Transmissions and signal-transmitting cable, leak thing
Therefore detection alarm be exactly a wherein important content.And in large-scale computer room base station, warehouse or industry spot, monitoring leakage
The point of water has a lot, and at this time how quickly positioning the position of leakage and making timely and effectively handling just becomes particularly important
.
At present, leakage measuring instrument by sonic is mostly used to pipeline leakage detection positioning, its principle is, the leakage that sensor is detected
Sound, in LED or liquid crystal screen display in combination with headphone monitor after amplification, filtering, denoising and microprocessor processing.But
This method operating rate is slow, and efficiency is low, and sensor probe is easily disturbed by ambient noise, and positioning precision is low.In addition, market or
Leakage position is monitored in real time using controller and detection cable, its principle is that detection cable passes to constant electric current, when
When nearby having liquid leakage, short circuit occurs in detection cable, then the controller voltage corresponding by obtaining, current signal meter
Calculate the relative position of leakage.But existing controller function is single, it is impossible to which satisfaction can not meet user and controller is alarmed
Function and the integrated diversified demand of monitoring system.
Therefore, how to provide a kind of diversified liquid leakage locating and detecting device of warning function is those skilled in the art
The problem of urgent need to resolve.
Utility model content
In view of this, the utility model provides a kind of liquid leakage locating and detecting device, the utility model internal circuit
Long range leakage detection and localization can be achieved in design, with power supply, leakage, communication failure and the multinomial warning function of state, and can
To show leakage position, working condition, temporal information in real time, the real-time palm of the field personnel to leakage warning message is met
Control；The input that host computer realizes configuration parameter is connected by RS-485 serial line interfaces, it is possible to be integrated to remote monitoring system.
In order to achieve the above object, the utility model is adopted the following technical scheme that：
A kind of liquid leakage locating and detecting device, including：Box body；The tray interior is provided with embeded processor；With
Data processing circuit, register, display circuit, warning circuit, power circuit, the relay of the embeded processor electrical connection
Control circuit, circuit for remotely controlling；And the leakage detection circuit electrically connected with the data processing circuit input, for examining
Survey and transmit leakage alarm signal；Wherein, the data processing circuit is used to calculate processing leakage location information；The register
For storing leakage warning message；The warning circuit is used to export leakage alarm signal；The control relay circuit output
End is connected with external relay control device, and is disconnected and the outside relay of closure state control by the control relay circuit
Device control device produces actuation of an alarm；
It is installed on the positive control panel of the box body；It is provided with and is electrically connected with the display circuit on the control panel
LCDs, and the button electrically connected with the embeded processor, the button and embeded processor electricity
Connection, the reset for alarm signal；Power indication LED positioned at the LCDs side, broken string LED alarm lamp,
LED alarm lamp is revealed, and is electrically connected with the warning circuit；It is arranged at the induction cable connection on the control panel top
End, and the induction cable connection end detects that circuit input end is electrically connected with the leakage；It is arranged at the control panel bottom
The power connector end at end, relay connection end, communication indicator lamp, order wire connection end；Wherein described power connector end with it is described
Power circuit input is electrically connected；The relay connection end is electrically connected with the output end of the control relay circuit；It is described
Communication indicator lamp and the order wire connection end are electrically connected with the circuit for remotely controlling.
The power circuit input power is 12V dc sources；The liquid leakage locating and detecting device running status can
Indicate that instruction state is as follows by the power indication LED, the broken string LED alarm lamp, the leakage LED alarm lamp：
The power indication LED, which is turned on/off, indicates respectively that power supply energization is normal/abnormal；
The broken string LED alarm lamp, which is turned on/off, indicates respectively faulty/correct access of sensing cable；
The leakage LED alarm lamp, which is turned on/off, indicates respectively that monitored pipeline has leakage generation/No leakage to produce；
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, LCDs shows leakage positional information, work
Make status information and temporal information.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the induction cable connection end includes 4 wiring
4 wires inside end, the external induction cable of difference.
The induction cable is implanted into special copolymer by four different type wires, wherein two multi-color cords are low resistances
Surface insulation line；Two black lines are formed by radio frequency Polymer Processing, and its resistance per unit length is precisely machined and is fixed
Value, with high corrosion resistance and wearability.In No leakage, wherein electric current is steady state value between two wires, when the sense
Answer cable to be compromised liquid immersion, be then shorted between two conducting polymers, and surveyed current value is changed, the liquid
Body leaks locating and detecting device sensed current signal, calculates the exact position leaked.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the power connector end includes 2 DC terminals
With 1 PE terminals；Wherein described DC terminals are nonpolarity power access end.
The PE terminals are earth terminal, and good anti-interference is reached by accessing power ground.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the relay connection end includes N.C. wiring
End, COM terminals, N.O. terminals；And the external relay control device is local control device or remote automation
System.
The control relay circuit has normally opened, normally closed two states simultaneously, and user can voluntarily select access way：
The N.C. terminals and the COM terminals are accessed simultaneously, during the liquid leakage locating and detecting device alarm free signal, institute
Control relay circuit is stated for off-state, when producing alarm signal, the control relay circuit closure；Institute is accessed simultaneously
N.O. terminals and the COM terminals are stated, when stating liquid leakage locating and detecting device alarm free signal, the Control
Circuit is closure state, and when producing alarm signal, the control relay circuit disconnects.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the communication indicator lamp includes individual, respectively TX
Indicator lamp and RX indicator lamps, wherein the TX indicator lamps is send signal lamp, the RX indicator lamps are reception signal designation
Lamp；Communications status indicates as follows：
The TX indicator lamps flash simultaneously with the RX indicator lamps, and the liquid leakage locating and detecting device communication is normal；
The TX indicator lamps or the RX indicator lamps extinguish, and send Information abnormity or receive information is abnormal；
The RX indicator lamps length is bright, the order wire or the circuit for remotely controlling failure；
The TX indicator lamps extinguish simultaneously with the RX indicator lamps, and the liquid leakage locating and detecting device is without communication；
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the order wire connection end is provided with 2, and
And each order wire connection end includes two order wire terminals.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the order wire is that RS-485 multiple twins communicate electricity
Cable, and telecommunication is carried out using industry modbus rtu protocols.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the register can store 32 leakage alarms
Record.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, pass through order wire and the circuit for remotely controlling
The host computer of electrical connection；The host computer is provided with configuration platform；The circuit for remotely controlling is used to receive the configuration platform
The configuration parameter of input, and leakage alarm location information is sent to the host computer, so as to realize integrated with monitoring system.
It is preferred that, in a kind of above-mentioned liquid leakage locating and detecting device, the configuration platform include communication setting module,
Induction cable setup module, clock setting module；Wherein described communication setting module includes a variety of Configuration of baud rate options；It is described
Induction cable setup module has induction cable length write area and induction cable resistance write area, can monitor meter Suo Shu induced electricities
Cable；The clock setting module reads local zone time and is shown on the LCDs；Remote parameter sets more convenient institute
The setting of liquid leakage locating and detecting device is stated, without scene adjustment calibration, operation is more named convenient accurate, the configuration platform tool
There are a variety of baud rates optional, can carry out matching communication with integrated monitoring system.
Understand that compared with prior art, the utility model is disclosed to be let out there is provided a kind of liquid via above-mentioned technical scheme
Locating and detecting device is leaked, monitoring leakage alarm by the alarm lamp on the control panel and LCDs first positions
Information, and with larger storage area, history alarm logging can be retained, with SR, a key can be achieved and resets；Secondly
The input for realizing Local or Remote automated system by the control relay circuit is connected；The circuit for remotely controlling again
By the connection of RS-485 serial ports and host computer, the configuration parameter of finishing device is set, it is only necessary to carry out one to the induction cable
It is secondary to set, without scene adjustment calibration, while sending leakage alarms location information to the host computer, realize and remote monitoring system
That unites is integrated, further realizes the variation of warning function.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 accompanying drawings are general structure schematic diagram of the present utility model；
Fig. 2 accompanying drawings are internal structure schematic diagram of the present utility model；
Fig. 3 accompanying drawings are embodiment catenation principle figure of the present utility model；
In Fig. 1：
1 be box body, 11 be control panel, 12 be button, 14 be order wire connection end, 50 be liquid crystal display frequency, 61 be electricity
Source LED light, 62 be broken string LED alarm lamp, 63 be leakage LED alarm lamp, 71 be power connector end, 81 be relay connection
End, 91 be induction cable connection end, 131 be TX indicator lamps, 132 be RX indicator lamps.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
The utility model embodiment discloses a kind of liquid leakage locating and detecting device, the utility model internal circuit design
Long range leakage detection and localization can be achieved, with power supply, leakage, communication failure and the multinomial warning function of state, and can be real
When show leakage position, working condition, temporal information, meet real-time control of the field personnel to leakage warning message；It is logical
The input that RS-485 serial line interfaces connection host computer realizes configuration parameter is crossed, and it is integrated with remote monitoring system.
Referring to accompanying drawing 2, the utility model provides a kind of liquid leakage locating and detecting device, including box body 1；In box body 1
Portion is provided with embeded processor 2；The data processing circuit 3 that is electrically connected with embeded processor 2, register 4, display circuit 5,
Warning circuit 6, power circuit 7, control relay circuit 8, circuit for remotely controlling 10；And with the input of data processing circuit 3
The leakage detection circuit 9 of electrical connection, for detecting and transmitting leakage alarm signal；Wherein, data processing circuit 3 is used at calculating
Manage leakage location information；Register 4 is used to store leakage warning message；Warning circuit 6 is used to export leakage alarm signal；Relay
The device control output end of circuit 8 is connected with external relay control device 80, and is disconnected and closed form by control relay circuit 8
State control external relay control device 80 produces actuation of an alarm；
Referring to accompanying drawing 1, the positive control panel 11 of box body 1 is installed on；It is provided with control panel 11 and the electricity of display circuit 5
The LCDs 50 of connection, and the button 12 electrically connected with embeded processor 2, the reset for alarm signal；It is located at
The power indication LED 61 of the side of LCDs 50, broken string LED alarm lamp 62, leakage LED alarm lamp 63, and with alarm
Circuit 6 is electrically connected；It is arranged at the induction cable connection end 91 on the top of control panel 11, and induction cable connection end 91 and leakage
Detect the electrical connection of the input of circuit 9；It is arranged at the power connector end 71 of the bottom of control panel 11, relay connection end 81, communication
Indicator lamp 13, the connection end of order wire 15；Wherein power connector end 71 is electrically connected with the input of power circuit 7；Relay connection end
81 electrically connect with the output end of control relay circuit 8；Communication indicator lamp 13 and the connection end of order wire 15 are electric with remote control
Road 10 is electrically connected.
In order to further optimize above-mentioned technical proposal, LCDs 50 shows leakage positional information, work state information
And temporal information.
In order to further optimize above-mentioned technical proposal, induction cable connection end 91 includes 4 terminals, external sensing respectively
4 wires inside cable 90.
In order to further optimize above-mentioned technical proposal, power connector end 71 includes 2 DC terminals and 1 PE terminals；
Wherein DC terminals are nonpolarity power access end, for independent current source wiring.
In order to further optimize above-mentioned technical proposal, relay connection end 81 include N.C. terminals, COM terminals,
N.O. terminals；And external relay control device 80 is local control device or remote automation system.
In order to further optimize above-mentioned technical proposal, communication indicator lamp 13 includes 2, respectively TX indicator lamps 131 and RX
Indicator lamp 132.
In order to further optimize above-mentioned technical proposal, the connection end of order wire 15 is provided with 2, and each order wire
Connection end 14 includes two order wire terminals, wherein a wire realizes telecommunication, a wire is used to power in addition, i.e.,
In the case of without external power supply, it can be powered by order wire 15.
In order to further optimize above-mentioned technical proposal, order wire 15 is RS-485 multiple twin communication cable lines, and uses work
Industry modbus rtu protocols.
In order to further optimize above-mentioned technical proposal, register 4 can store 32 leakage alarm records.
In order to further optimize above-mentioned technical proposal, the host computer electrically connected by order wire 15 with circuit for remotely controlling 10
100；Host computer 100 is provided with configuration platform 101；Circuit for remotely controlling 10 is used for the configuration ginseng for receiving the input of configuration platform 101
Number, and leakage alarm location information is sent to host computer 100.
In order to further optimize above-mentioned technical proposal, configuration platform 101 includes communication setting module 102, induction cable and set
Put module 103, clock setting module 104；Wherein communication setting module 102 includes a variety of Configuration of baud rate options；Induction cable
Setup module 103 has induction cable length write area and induction cable resistance write area；Clock setting module 104 is read locally
Time is simultaneously shown on LCDs 50.
Referring to accompanying drawing 3, liquid leakage locating and detecting device is connected by RS-485 communication cables with host computer 100, and is led to
The configuration parameter of configuration platform 101 of host computer 100 is crossed, each liquid leakage locating and detecting device is both needed to possess an independent ground
Location, by configuring baud rate, has after identical baud rate to choose only one address and host computer 100, can be achieved with it is upper
The matching communication of machine 100, communications status can be shown by the indicator lamp 13 that communicates.
External input power can be connected by power connector end 71 with power circuit 7, be liquid leakage locating and detecting device
Power supply, power work state can be shown by power indication LED 61.
Induction cable 90 is detected after leakage signal, is caused the electric current for flowing into leakage detection circuit 9 to change, is passed through number
Leakage location data is calculated according to process circuit 3, and is sent to embeded processor 2, embeded processor 2 passes information respectively
Deliver to register 4, display circuit 5, warning circuit 6, control relay circuit 8, circuit for remotely controlling 10；Wherein, register 4 is deposited
Each leakage alarm location information is stored up, and can at most store 32 alarm location informations；Display circuit 5 believes leakage alarm positioning
Breath is transmitted to LCDs 50, while LCDs 50 obtains system time by host computer 100 and shown；Alarm
Circuit 5 carries out light warning by the leakage LED alarm lamp 63 of connection, when sensing cable failure or when not accessing correctly, breaks
Line LED alarm lamp 62 carries out light warning；Control relay circuit 8 produces closure or the state change opened, so as to control outer
Portion's relay controller 80 is produced in corresponding state change, such as opening and closing of control piper valve or remote automation system
The start and stop of warning device；Circuit for remotely controlling 10 by leakage locating alarming information by RS-485 communication cables transmit to
In the host computer 100 of matching, host computer can integrated monitoring system, by monitoring system so as to can realize to leakage locating alarming believe
The remote real-time monitoring of breath is shown；Staff is positive by control panel 11 after the completion of confirming leakage position and repairing
Button 12, can reset liquid leakage locating and detecting device, can continue to implement leakage monitoring.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of liquid leakage locating and detecting device, it is characterised in that including：Box body (1)；The box body (1) is internally provided with
Embeded processor (2)；What is electrically connected with the embeded processor (2) is used at the data of calculating processing leakage location information
Manage circuit (3), it is register (4), display circuit (5), warning circuit (6), power circuit (7), control relay circuit (8), remote
Process control circuit (10)；And the leakage detection circuit (9) electrically connected with the data processing circuit (3) input；Wherein, institute
State control relay circuit (8) output end to be connected with external relay control device (80), and pass through Control electricity
Road (8) disconnects produces actuation of an alarm with closure state control external relay control device (80)；
It is installed on the box body (1) positive control panel (11)；It is provided with the control panel (11) and the display electricity
The LCDs (50) of road (5) electrical connection；The embeded processor (2) is electrically connected with the button resetted for alarm signal
(12)；Power indication LED (61), broken string LED alarm lamp (62), leakage LED positioned at the LCDs (50) side
Alarm lamp (63), and electrically connected with the warning circuit (6)；The induction cable for being arranged at the control panel (11) top connects
End (91) is connect, and the induction cable connection end (91) is electrically connected with leakage detection circuit (9) input；It is arranged at institute
State the power connector end (71), relay connection end (81), communication indicator lamp (13), order wire (15) of control panel (11) bottom
Connection end；Wherein described power connector end (71) electrically connects with the power circuit (7) input；The relay connection end
(81) output end with the control relay circuit (8) is electrically connected；The communication indicator lamp (13) and the order wire (15)
Connection end is electrically connected with the circuit for remotely controlling (10).
2. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that LCDs (50) shows
Show leakage positional information, work state information and temporal information.
3. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that the induction cable connection
(91) are held to include 4 terminals, respectively 4 internal wires of the external induction cable (90).
4. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that the power connector end
(71) 2 DC terminals and 1 PE terminals are included；Wherein described DC terminals are nonpolarity power access end.
5. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that the relay connection end
(81) N.C. terminals, COM terminals, N.O. terminals are included；And the external relay control device (80) is local
Control device or remote automation system.
6. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that the communication indicator lamp
(13) 2, respectively TX indicator lamps (131) and RX indicator lamps (132) are included.
7. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that the order wire (15) is
RS-485 multiple twin communication cable lines, and use industry modbus rtu protocols.
8. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that the register (4) can
32 leakage alarm records of storage.
9. a kind of liquid leakage locating and detecting device according to claim 1, it is characterised in that by order wire (15) with
The host computer (100) of circuit for remotely controlling (10) electrical connection；The host computer (100) is provided with configuration platform (101)；Institute
The configuration parameter that circuit for remotely controlling (10) is used to receive the configuration platform (101) input is stated, and sends leakage alarm positioning
Information is to the host computer (100).
10. a kind of liquid leakage locating and detecting device according to claim 9, it is characterised in that the configuration platform
(101) communication setting module (102), induction cable setup module (103), clock setting module (104) are included；It is wherein described logical
Believe that setup module (102) includes a variety of Configuration of baud rate options；The induction cable setup module (103) is used to set induced electricity
Cable length and resistance；The clock setting module (104) is read local zone time and is shown on the LCDs (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075888.4U CN206504834U (en) | 2017-01-20 | 2017-01-20 | A kind of liquid leakage locating and detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075888.4U CN206504834U (en) | 2017-01-20 | 2017-01-20 | A kind of liquid leakage locating and detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504834U true CN206504834U (en) | 2017-09-19 |
Family
ID=59840037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720075888.4U Expired - Fee Related CN206504834U (en) | 2017-01-20 | 2017-01-20 | A kind of liquid leakage locating and detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206504834U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702865A (en) * | 2017-12-07 | 2018-02-16 | 成都量之星科技有限公司 | A kind of leakage inspector of stabilization |
| CN108492533A (en) * | 2018-05-02 | 2018-09-04 | 国网湖北省电力有限公司孝感供电公司 | A kind of unattended operation transformer station water logging disaster remote alarming device |
| CN109696871A (en) * | 2019-01-22 | 2019-04-30 | 华南农业大学 | A kind of mixed medicine-chest control system and control method based on Internet of Things |
| US10900859B2 (en) | 2019-06-14 | 2021-01-26 | Pica Product Development, Llc | Conductive fluid sensor cable |
| CN112706448A (en) * | 2020-12-07 | 2021-04-27 | 上海绚阳铝箔制品东台有限公司 | Aluminum foil product mould convenient to take out and control system thereof |
| US11621508B2 (en) | 2019-06-14 | 2023-04-04 | PICA Product Development LLC | Flat flexible conductive fluid crimp connector |
| US11761843B2 (en) | 2019-06-14 | 2023-09-19 | Pica Product Development, Llc | Flat flexible conductive fluid sensor cable and connector |
-
2017
- 2017-01-20 CN CN201720075888.4U patent/CN206504834U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702865A (en) * | 2017-12-07 | 2018-02-16 | 成都量之星科技有限公司 | A kind of leakage inspector of stabilization |
| CN108492533A (en) * | 2018-05-02 | 2018-09-04 | 国网湖北省电力有限公司孝感供电公司 | A kind of unattended operation transformer station water logging disaster remote alarming device |
| CN109696871A (en) * | 2019-01-22 | 2019-04-30 | 华南农业大学 | A kind of mixed medicine-chest control system and control method based on Internet of Things |
| US10900859B2 (en) | 2019-06-14 | 2021-01-26 | Pica Product Development, Llc | Conductive fluid sensor cable |
| US11621508B2 (en) | 2019-06-14 | 2023-04-04 | PICA Product Development LLC | Flat flexible conductive fluid crimp connector |
| US11761843B2 (en) | 2019-06-14 | 2023-09-19 | Pica Product Development, Llc | Flat flexible conductive fluid sensor cable and connector |
| CN112706448A (en) * | 2020-12-07 | 2021-04-27 | 上海绚阳铝箔制品东台有限公司 | Aluminum foil product mould convenient to take out and control system thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |