US20150233783A1 - Method for controlling a homogeneous batch of pressurised fluid cylinders - Google Patents

Method for controlling a homogeneous batch of pressurised fluid cylinders Download PDF

Info

Publication number
US20150233783A1
US20150233783A1 US14/700,407 US201514700407A US2015233783A1 US 20150233783 A1 US20150233783 A1 US 20150233783A1 US 201514700407 A US201514700407 A US 201514700407A US 2015233783 A1 US2015233783 A1 US 2015233783A1
Authority
US
United States
Prior art keywords
cylinders
batch
cylinder
information
conditioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/700,407
Inventor
Christian Bleys
Philippe Deck
Fabrice Pin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority to US14/700,407 priority Critical patent/US20150233783A1/en
Publication of US20150233783A1 publication Critical patent/US20150233783A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F17C13/003—Means for coding or identifying them and/or their contents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F17C5/005—Automated filling apparatus for gas bottles, such as on a continuous belt or on a merry-go-round
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0123—Shape cylindrical with variable thickness or diameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/05—Vessel or content identifications, e.g. labels
    • F17C2205/055—Vessel or content identifications, e.g. labels by magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/034—Control means using wireless transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0473—Time or time periods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure

Definitions

  • the present invention relates to a method for checking a homogeneous batch of pressurized-fluid cylinders.
  • the invention relates more specifically to a method for checking a homogeneous batch of cylinders of pressurized-fluid, particularly of pressurized gas, during at least part of the cycle of use of said cylinders.
  • the present invention provides a method for checking a homogeneous batch of pressurized-fluid cylinders during at least part of the cycle of use of the cylinders, the cylinders each being equipped with a valve provided with an electronic device comprising at least one sensor for measuring the pressure (P) obtaining inside the cylinder, a data storage/acquisition and processing system and an emitter of electromagnetic waves designed to transmit to a distance at least one of the information items from among: the identity of the cylinder and the pressure (P) measured inside the cylinder, the method involving an emission step in which all the cylinders of the batch emit at least one information item of the same nature when they are simultaneously in one and the same phase of the cycle of use, and a step of comparing the information items of the same nature emitted by the cylinders in order automatically to detect an anomaly in the batch.
  • FIG. 1 depicts a schematic and partial view illustrating the structure and operation of the checking of a pressurized-fluid cylinder batch according to the invention.
  • FIG. 2 depicts a schematic and partial view illustrating the structure and operation of one example according to the invention, of an electronic measurement and communication device carried by each cylinder of the batch of FIG. 1 .
  • the invention proposes a method for checking a homogeneous batch of pressurized-fluid cylinders during at least part of the cycle of use of said cylinders, the cylinders each being equipped with a valve provided with an electronic device comprising at least one sensor for measuring the pressure obtaining inside the cylinder, a data storage/acquisition and processing system and an emitter of electromagnetic waves, for example at radio frequency, designed to transmit to a distance at least one of the information items from among: the identity of the cylinder and the pressure measured inside said cylinder, the method involving an emission step in which all the cylinders of the batch emit at least one information item of the same nature when they are simultaneously in one and the same phase of the cycle of use, and a step of comparing the information items of the same nature emitted by the cylinders in order automatically to detect an anomaly in the batch.
  • embodiments of the invention may include one or more of the following features:
  • FIG. 1 schematically depicts a homogeneous batch of identical pressurized-gas cylinders 2 .
  • Each cylinder 2 is equipped with a valve 3 provided with an electronic device 4 comprising at least one sensor 14 for measuring the pressure P obtaining inside the cylinder 2 , a data storage/acquisition and processing system 44 and an emitter 34 of electromagnetic waves, for example at radio frequency, designed to transmit to a distance at least one of the information items from among: the identity of the cylinder 2 and the pressure P measured inside said cylinder (or an item of data representative of the pressure, such as the remaining capacity).
  • the pressure P sensor 14 the data storage/acquisition and processing system 44 , the emitter 34 of electromagnetic waves, a battery 54 and possibly a wave receiver and other elements such as a temperature T sensor 24 may be incorporated into one and the same device 4 known as “electronic pressure gauge” fitted in place of a mechanical pressure gauge of known type.
  • electronic pressure gauge An example of an electronic pressure gauge is described, for example, in document WO 2005/09337.
  • the electronic pressure gauge 4 is able to communicate with a reception member 5 (emitter) coupled (directly or remotely) to a data processing system such as a computer 6 .
  • the batch 1 can be controlled and monitored as follows.
  • the electronic pressure gauge 4 provided with radio frequency communication members may send out to a distance a signal S in the form, for example, of three redundant frames containing, by way of non-limiting example: the identifier of the cylinder 2 , the measured pressure P, the measured temperature T and various statuses (for example a low-pressure or high-pressure alarm, a battery state, etc.).
  • the signal S is sent out automatically by each electronic pressure gauge 4 more or less frequently according to whether or not it is in use (for example every hour when it is not in use or every minute when it is in use). These emissions at regular frequencies may be supplemented by automatic immediate emissions if the conditions of an alarm (for example a parameterized pressure value) are all met.
  • This phase of verifying the number and identity of the cylinders 2 may be performed before a conditioning (or during this conditioning when operating concurrently).
  • Monitoring the conditioning curves (10 to 40 acquisitions on each of the increases and/or decreases in pressure P) of the batch 1 makes it possible to see that the conditioning is progressing correctly.
  • Monitoring correct conditioning is characterized by pressure P curves with trends that are consistent between the cylinders 2 of the batch 1 (for example during the rinsing/filling/venting/evacuating cycles).
  • a cylinder 2 the valve of which may have remained closed will be easily detected and isolated because the measured pressure P would be practically zero.
  • a cylinder 2 the valve shutter of which may have become damaged will have an operation that is inconsistent with the other cylinders 2 of the batch 1 .
  • the latter detection is particularly tricky to effect in the prior part even though it is very important in the context of gas mixtures because there is then a high risk of obtaining mixtures of which the batch 1 is inconsistent.
  • An automatic status report of the cylinders 2 which are contained in the delivery truck can be created. This is advantageous in order to check the compliance of the consignment. This corresponds, for example, to a centralization display indicating the status of the cylinders (full/empty, number, type) in a fire tender and/or an ambulance so that a batch can be verified prior to any intervention.
  • a location system (of the GPS type) may be provided in the electronic pressure gauge 4 so that the suitability of the delivered product can be checked against the place of delivery.
  • the invention allows an inventory and monitoring of the pressure curves (leak detection) as described hereinabove.
  • the invention also makes it possible to detect anomalies by monitoring the pressure curves (leak detection) as described hereinabove.
  • Sorting The invention allows automation of the cylinders to be sought (recall of batch 1 , re-testing, etc.).
  • the invention is not restricted to the examples described hereinabove and may also relate to a device comprising all or some of the above features.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Measuring Fluid Pressure (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention relates to a method for controlling a homogeneous batch (1) of pressurised fluid cylinders (2) during at least part of the use cycle of said cylinders. According to the invention, each of the cylinders (2) is provided with a valve (3) having an electronic device (4) including at least one sensor (14) for measuring the pressure (P) inside the cylinder (2), a system (44) for storing/acquiring and processing data and an electromagnetic wave transmitter (34), for example using radio frequency, designed for the remote transmission of at least one of the following items of information: the identity of the cylinder (2) and the pressure (P) measured inside said cylinder. The method includes a transmission step in which all of the cylinders (2) in the batch (1) transmit at least one item of information of the same type when they are in the same phase of the use cycle at the same time and a step in which the same-type items of information transmitted by the cylinders are compared for the automatic detection of an anomaly in the batch (1).

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation of patent application Ser. No. 12/597,902, filed Mar. 27, 2008, which is 371 of International PCT Application PCT/FR2008/050536, filed Mar. 27, 2008, the entire contents of which are incorporated herein by reference.
    • FIELD OF THE INVENTION
  • The present invention relates to a method for checking a homogeneous batch of pressurized-fluid cylinders.
  • The invention relates more specifically to a method for checking a homogeneous batch of cylinders of pressurized-fluid, particularly of pressurized gas, during at least part of the cycle of use of said cylinders.
    • BACKGROUND Controlling and monitoring cylinders of conditioned gas during their cycle of use is of key importance on an industrial scale.
  • This is because the checking of cylinders of conditioned gas is subject to safety and industrial efficiency requirements and thereby entails a significant amount of logistic support and labor. This is a particularly sensitive issue in the medical field where a defective cylinder or a cylinder containing an incorrect mixture may have serious consequences.
  • It is an object of the present invention to alleviate all or some of the abovementioned disadvantages of the prior art.
    • SUMMARY OF THE INVENTION
  • The present invention provides a method for checking a homogeneous batch of pressurized-fluid cylinders during at least part of the cycle of use of the cylinders, the cylinders each being equipped with a valve provided with an electronic device comprising at least one sensor for measuring the pressure (P) obtaining inside the cylinder, a data storage/acquisition and processing system and an emitter of electromagnetic waves designed to transmit to a distance at least one of the information items from among: the identity of the cylinder and the pressure (P) measured inside the cylinder, the method involving an emission step in which all the cylinders of the batch emit at least one information item of the same nature when they are simultaneously in one and the same phase of the cycle of use, and a step of comparing the information items of the same nature emitted by the cylinders in order automatically to detect an anomaly in the batch.
    • BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1 depicts a schematic and partial view illustrating the structure and operation of the checking of a pressurized-fluid cylinder batch according to the invention.
  • FIG. 2 depicts a schematic and partial view illustrating the structure and operation of one example according to the invention, of an electronic measurement and communication device carried by each cylinder of the batch of FIG. 1.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • To this end, the invention proposes a method for checking a homogeneous batch of pressurized-fluid cylinders during at least part of the cycle of use of said cylinders, the cylinders each being equipped with a valve provided with an electronic device comprising at least one sensor for measuring the pressure obtaining inside the cylinder, a data storage/acquisition and processing system and an emitter of electromagnetic waves, for example at radio frequency, designed to transmit to a distance at least one of the information items from among: the identity of the cylinder and the pressure measured inside said cylinder, the method involving an emission step in which all the cylinders of the batch emit at least one information item of the same nature when they are simultaneously in one and the same phase of the cycle of use, and a step of comparing the information items of the same nature emitted by the cylinders in order automatically to detect an anomaly in the batch.
  • Furthermore, embodiments of the invention may include one or more of the following features:
      • the emission step is performed independently by each electronic device by automatically and repeatedly emitting information at determined time intervals,
      • the emission step is performed independently and automatically by each electronic device as soon as the data storage/acquisition and processing system detects a trigger condition relating to one of the items of information, such that a pressure threshold (P) is reached,
      • each emission of information by an emitter is performed by successively sending out several redundant identical messages,
      • the cycle of use of the batch of cylinders comprises a pre-conditioning phase during which the comparison step comprises: comparing the number of cylinders detected against a number of cylinders initially intended for the conditioning, and comparing the type of cylinders detected against the intended conditioning, in order to verify that the number and type of cylinder conforms to the intended conditioning,
      • the cycle of use of the batch of cylinders comprises a conditioning phase during which the cylinders of the batch are subjected to one or more filling operations and possibly to one or more withdrawing operations and possibly to one or more cleaning operations, the comparison step comprising: comparing curves of the variation in pressures (P) of the cylinders which have been obtained from the pressure values (P) measured by the sensors and emitted successively by the emitters so as to detect any curve of the pressure variation of a cylinder that is inconsistent with all the other curves and is the result, for example, of a valve that is closed and/or of a valve shutter that is defective,
      • the cycle of use of the batch of cylinders comprises a post-conditioning phase, the method comprising a step of recording the values of the final pressure (P) measured in each of the cylinders and possibly the value of the final temperature (T) in each of the cylinders as measured by a temperature (T) sensor,
      • the cycle of use of the batch of cylinders comprises a quarantine or storage phase during which the cylinders of the batch are not used, the comparison step comprising: comparing the curves of variation in pressures (P) of the cylinders or comparing the values of the pressure (P) in each cylinder before and after the quarantine phase in order to detect a cylinder that is suffering from a slow leak,
      • during the quarantine or storage phase, the comparison step comprises comparing the number of cylinders detected on the basis of the information received against the predefined number of cylinders,
      • the cycle of use of the batch of cylinders comprises a phase of delivering the batch, during which phase the comparison step comprises comparing and possibly recording characteristics of the batch (1) against a predefined batch,
      • the electronic device comprises a battery and a temperature (T) sensor, the information emitted during the emission step comprising: the identity of the cylinder, the pressure (P) measured inside said cylinder, the measured temperature (T) and possibly the state of the battery.
  • For a further understanding of the nature and objects for the present invention, reference should be made to the detailed description, taken in conjunction with the accompanying figures, in which like elements are given the same or analogous reference numbers.
  • Other particulars and advantages will become apparent from reading the description which follows, which is given with reference to the figures.
  • FIG. 1 schematically depicts a homogeneous batch of identical pressurized-gas cylinders 2.
  • Each cylinder 2 is equipped with a valve 3 provided with an electronic device 4 comprising at least one sensor 14 for measuring the pressure P obtaining inside the cylinder 2, a data storage/acquisition and processing system 44 and an emitter 34 of electromagnetic waves, for example at radio frequency, designed to transmit to a distance at least one of the information items from among: the identity of the cylinder 2 and the pressure P measured inside said cylinder (or an item of data representative of the pressure, such as the remaining capacity).
  • As depicted in FIG. 2, the pressure P sensor 14, the data storage/acquisition and processing system 44, the emitter 34 of electromagnetic waves, a battery 54 and possibly a wave receiver and other elements such as a temperature T sensor 24 may be incorporated into one and the same device 4 known as “electronic pressure gauge” fitted in place of a mechanical pressure gauge of known type. An example of an electronic pressure gauge is described, for example, in document WO 2005/09337.
  • The electronic pressure gauge 4 is able to communicate with a reception member 5 (emitter) coupled (directly or remotely) to a data processing system such as a computer 6.
  • By equipping, according to the invention, all the cylinders of an identical batch with such an electronic pressure gauge 4, the batch 1 can be controlled and monitored as follows.
  • The electronic pressure gauge 4 provided with radio frequency communication members may send out to a distance a signal S in the form, for example, of three redundant frames containing, by way of non-limiting example: the identifier of the cylinder 2, the measured pressure P, the measured temperature T and various statuses (for example a low-pressure or high-pressure alarm, a battery state, etc.).
  • The signal S is sent out automatically by each electronic pressure gauge 4 more or less frequently according to whether or not it is in use (for example every hour when it is not in use or every minute when it is in use). These emissions at regular frequencies may be supplemented by automatic immediate emissions if the conditions of an alarm (for example a parameterized pressure value) are all met.
  • Examples of phases of a cycle of use will now be described in conjunction with the invention (Filling/Quarantine/Delivery/Storage Full/In Use/Return Empty/Sort).
  • The emission of these signals S from a batch 1 makes it possible to locate, trace and identify the cylinders 2 of the batch 1 individually.
  • For a batch 1 comprising, for example, twelve cylinders 2, receipt of the twelve cylinder 2 identities makes it possible to verify that there are indeed twelve cylinders 2 in the batch 1, that the product is identical and that the docket detailing the intended filling with gas is properly suited to the type of cylinder 2.
  • This phase of verifying the number and identity of the cylinders 2 may be performed before a conditioning (or during this conditioning when operating concurrently).
    • During Conditioning:
  • Monitoring the conditioning curves (10 to 40 acquisitions on each of the increases and/or decreases in pressure P) of the batch 1 (in the sense of a line for simultaneously filling several cylinders 2) makes it possible to see that the conditioning is progressing correctly. Monitoring correct conditioning is characterized by pressure P curves with trends that are consistent between the cylinders 2 of the batch 1 (for example during the rinsing/filling/venting/evacuating cycles).
  • Thus, a cylinder 2 the valve of which may have remained closed will be easily detected and isolated because the measured pressure P would be practically zero. Likewise, a cylinder 2 the valve shutter of which may have become damaged will have an operation that is inconsistent with the other cylinders 2 of the batch 1. The latter detection is particularly tricky to effect in the prior part even though it is very important in the context of gas mixtures because there is then a high risk of obtaining mixtures of which the batch 1 is inconsistent.
    • After Conditioning:
  • It is possible to record (and to compare) the pressure/temperature thresholds obtained at the end of conditioning individually for each cylinder 2 of the batch.
  • During any quarantine period there might be:
  • Examining and comparing the pressure P curves during the quarantine period makes it possible to detect and prevent any slow leaks there might be by comparing the data from one and the same cylinder 2 before and after the quarantine period and also by a comparative study of the twelve pressure curves of the batch 1.
    • During a Delivery Phase:
  • The relevant information is obtained easily and automatically and allows guarantees to be made regarding the batch 1 delivered. An automatic status report of the cylinders 2 which are contained in the delivery truck can be created. This is advantageous in order to check the compliance of the consignment. This corresponds, for example, to a centralization display indicating the status of the cylinders (full/empty, number, type) in a fire tender and/or an ambulance so that a batch can be verified prior to any intervention.
  • A location system (of the GPS type) may be provided in the electronic pressure gauge 4 so that the suitability of the delivered product can be checked against the place of delivery.
  • During storage at the premises of the user: the invention allows an inventory and monitoring of the pressure curves (leak detection) as described hereinabove.
  • During use, the invention also makes it possible to detect anomalies by monitoring the pressure curves (leak detection) as described hereinabove.
  • When a delivery is returned: it is possible to monitor and count off the cylinders 2 taken back.
  • Sorting: The invention allows automation of the cylinders to be sought (recall of batch 1, re-testing, etc.).
  • The invention is not restricted to the examples described hereinabove and may also relate to a device comprising all or some of the above features.

Claims (14)

1. A method for checking a homogeneous batch of pressurized-fluid cylinders during at least part of the cycle of use of the cylinders, the cylinders each being equipped with a valve provided with an electronic device comprising at least one sensor for measuring the pressure (P) obtaining inside the cylinder, a data storage/acquisition and processing system and an emitter of electromagnetic waves designed to transmit to a distance at least one of the information items from among: the identity of the cylinder and the pressure (P) measured inside said cylinder, the method involving an emission step in which all the cylinders of the batch emit at least one information item of the same nature when they are simultaneously in one and the same phase of the cycle of use, and a step of comparing the information items of the same nature emitted by the cylinders in order automatically to detect an anomaly in the batch.
2. The method of claim 1, wherein the emission step is performed independently by each electronic device by automatically and repeatedly emitting information at determined time intervals.
3. The method of claim 1, wherein the emission step is performed independently and automatically by each electronic device as soon as the data storage/acquisition and processing system detects a trigger condition relating to one of the items of information, such that a pressure threshold (P) is reached.
4. The method of claim 1, wherein each emission of information by an emitter is performed by successively sending out several redundant identical messages.
5. The method of claim 1, wherein the cycle of use of the batch of cylinders comprises a pre-conditioning phase during which the comparison step comprises:
comparing the number of cylinders detected against a number of cylinders initially intended for the conditioning, and comparing the type of cylinders detected against the intended conditioning, in order to verify that the number and type of cylinder conforms to the intended conditioning.
6. The method of claim 1, wherein the cycle of use of the batch of cylinders comprises a post-conditioning phase, and in that it comprises a step of recording the values of the final pressure (P) measured in each of the cylinders and the value of the final temperature (T) in each of the cylinders as measured by a temperature (T) sensor.
7. The method of claim 1, wherein the cycle of use of the batch of cylinders comprises a quarantine or storage phase during which the cylinders of the batch are not used, the comparison step comprising: comparing the curves of variation in pressures (P) of the cylinders or comparing the values of the pressure (P) in each cylinder before and after the quarantine phase in order to detect a cylinder that is suffering from a slow leak.
8. The method of claim 7, wherein during the quarantine or storage phase, the comparison step comprises comparing the number of cylinders detected on the basis of the information received against the predefined number of cylinders.
9. The method of claim 1, wherein the cycle of use of the batch of cylinders comprises a phase of delivering the batch, during which phase the comparison step comprises comparing and recording characteristics of the batch against a predefined batch.
10. The method of claim 1, wherein the electronic device comprises a battery and a temperature (T) sensor, the information emitted during the emission step comprising: the identity of the cylinder, the pressure (P) measured inside said cylinder, the measured temperature (T) and the state of the battery.
11. The method of claim 1, wherein the electromagnetic waves are emitted at radio frequency.
12. The method of claim 2, wherein the emission step is performed independently and automatically by each electronic device as soon as the data storage/acquisition and processing system detects a trigger condition relating to one of the items of information, such that a pressure threshold (P) is reached.
13. The method of claim 12, wherein each emission of information by an emitter is performed by successively sending out several redundant identical messages.
14. The method of claim 13, wherein the cycle of use of the batch of cylinders comprises a pre-conditioning phase during which the comparison step comprises:
comparing the number of cylinders detected against a number of cylinders initially intended for the conditioning, and comparing the type of cylinders detected against the intended conditioning, in order to verify that the number and type of cylinder conforms to the intended conditioning.
US14/700,407 2007-05-03 2015-04-30 Method for controlling a homogeneous batch of pressurised fluid cylinders Abandoned US20150233783A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/700,407 US20150233783A1 (en) 2007-05-03 2015-04-30 Method for controlling a homogeneous batch of pressurised fluid cylinders

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0754841 2007-05-03
FR0754841A FR2915801B1 (en) 2007-05-03 2007-05-03 METHOD FOR CONTROLLING A HOMOGENEOUS BATCH OF FLUID BOTTLES UNDER PRESSURE
PCT/FR2008/050536 WO2008139074A1 (en) 2007-05-03 2008-03-27 Method for controlling a homogeneous batch of pressurised fluid cylinders
US59790209A 2009-10-27 2009-10-27
US14/700,407 US20150233783A1 (en) 2007-05-03 2015-04-30 Method for controlling a homogeneous batch of pressurised fluid cylinders

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US12/597,902 Continuation US9046219B2 (en) 2007-05-03 2008-03-27 Method for controlling a homogeneous batch of pressurized-fluid cylinders
PCT/FR2008/050536 Continuation WO2008139074A1 (en) 2007-05-03 2008-03-27 Method for controlling a homogeneous batch of pressurised fluid cylinders

Publications (1)

Publication Number Publication Date
US20150233783A1 true US20150233783A1 (en) 2015-08-20

Family

ID=38514290

Family Applications (2)

Application Number Title Priority Date Filing Date
US12/597,902 Expired - Fee Related US9046219B2 (en) 2007-05-03 2008-03-27 Method for controlling a homogeneous batch of pressurized-fluid cylinders
US14/700,407 Abandoned US20150233783A1 (en) 2007-05-03 2015-04-30 Method for controlling a homogeneous batch of pressurised fluid cylinders

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US12/597,902 Expired - Fee Related US9046219B2 (en) 2007-05-03 2008-03-27 Method for controlling a homogeneous batch of pressurized-fluid cylinders

Country Status (6)

Country Link
US (2) US9046219B2 (en)
EP (1) EP2153109B1 (en)
AT (1) ATE476624T1 (en)
DE (1) DE602008002075D1 (en)
FR (1) FR2915801B1 (en)
WO (1) WO2008139074A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3418619A1 (en) * 2017-06-24 2018-12-26 Messer Group GmbH System for remote surveying and marking of a compressed gas cylinder assembly

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915801B1 (en) * 2007-05-03 2009-07-17 Taema Sa METHOD FOR CONTROLLING A HOMOGENEOUS BATCH OF FLUID BOTTLES UNDER PRESSURE
FR2915798B1 (en) 2007-05-03 2010-04-30 Taema METHOD FOR CONTROLLING AN ELECTRONIC MANOMETER AND CORRESPONDING MANOMETER
FR2915799B1 (en) 2007-05-03 2010-10-01 Taema ELECTRONIC PRESSURE MEASURING PRESSURE GAUGE IN A CONTAINER
FR2955936A1 (en) * 2010-02-02 2011-08-05 Air Liquide Control unit e.g. pump, for controlling flow of fluid in duct of fluid distribution system, has radio frequency emitter controlled by electronic control logic for selectively sending information provided by pressure and temperature sensors
GB2553824A (en) * 2016-09-15 2018-03-21 Linde Aktiengesellshcaft A gas cylinder monitoring system
CN110220658B (en) * 2019-05-23 2024-03-12 北京锐业制药有限公司 High-frequency discharge leakage detection device
FR3136831B1 (en) * 2022-06-17 2024-05-24 Air Liquide Dynamic method for quickly filling identical batches of gas mixture bottles with high metrological precision

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6360546B1 (en) * 2000-08-10 2002-03-26 Advanced Technology Materials, Inc. Fluid storage and dispensing system featuring externally adjustable regulator assembly for high flow dispensing
US20040112435A1 (en) * 2002-12-17 2004-06-17 Olander W. Karl Gas storage and dispensing system for variable conductance dispensing of gas at constant flow rate
US20100037982A1 (en) * 2008-08-14 2010-02-18 Bauer Compressors, Inc. Method and apparatus for auto-cascade bottle filling
US8047079B2 (en) * 2007-05-03 2011-11-01 L'air Liquide Societe Anonyme Pour L'etude Et Exploitation Des Procedes Georges Claude Method for controlling an electronic pressure gauge and pressure gauge therefor
US9046219B2 (en) * 2007-05-03 2015-06-02 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Method for controlling a homogeneous batch of pressurized-fluid cylinders
US20170002983A1 (en) * 2014-01-22 2017-01-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Geoges Claude Valve for a pressurized fluid cylinder and corresponding cylinder

Family Cites Families (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490267A (en) * 1965-07-01 1970-01-20 William E Gordon Method and apparatus for determining the contents of a refillable container
GB1319764A (en) 1969-10-09 1973-06-06 British Oxygen Co Ltd Flow control valve device
FR2391455A1 (en) * 1977-05-18 1978-12-15 Elf Antargaz Checking system for content of gas bottle - has two crank arms which carry gamma rays emitter and detector respectively
US4147893A (en) * 1978-05-05 1979-04-03 Matson C G Gauging system providing remote readout of liquid levels in gasoline storage tanks
DE2951584A1 (en) * 1979-12-21 1981-07-16 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen METHOD AND ARRANGEMENT FOR CONTROLLING, MONITORING AND CONTROLLING THE OPERATION OF A MOST PASSIVE DATA DISPLAY, ESPECIALLY E.g. A LIQUID CRYSTAL DISPLAY (LCD DISPLAY)
FR2504650A1 (en) * 1981-04-22 1982-10-29 Utilisation Ration Gaz METHOD AND INSTALLATION FOR CONTINUOUSLY MONITORING AND ADJUSTING A SET OF GAS BOTTLE FILLING STATIONS
DE3432247C2 (en) * 1984-09-01 1986-12-18 Mannesmann Kienzle GmbH, 7730 Villingen-Schwenningen Arrangement for displaying a malfunction of a liquid crystal display
EP0180662B1 (en) 1984-11-08 1989-02-08 Dräger Nederland B.V. Measuring transducer, in particular for medical applications
GB2189887B (en) 1986-04-22 1989-11-29 Michael Stanley Slaney Pressure measuring device
JPH061226B2 (en) * 1986-05-07 1994-01-05 日本電装株式会社 Semiconductor pressure sensor
US4850228A (en) 1987-05-27 1989-07-25 Smc Corporation Pressure meter
US5016483A (en) * 1988-01-11 1991-05-21 Budinger William D Method and apparatus for determination and display of critical gas supply information
FR2646237B1 (en) * 1989-04-21 1994-01-07 Fabrication Instruments Mesure HIGH-PRESSURE GAS GAUGE DEVICE, PARTICULARLY FOR THE RESERVATION OF GASEOUS OXYGEN ON BOARD AN AIRCRAFT
LU87607A1 (en) 1989-10-11 1990-02-07 Ceodeux Sa VALVE ARRANGEMENT WITH RESISTANT PRESSURE VALVE FOR FILLING AND EMPTYING A GAS CONTAINER
US6672151B1 (en) * 1989-12-20 2004-01-06 Sentech, Inc. Apparatus and method for remote sensing and receiving
DE4009741A1 (en) 1990-03-27 1991-10-02 Kurt Puetz Gas bottle manometer for gas leak detection - has pressure detector and pressure threshold detector operating warning signal device
EP0451897A3 (en) 1990-04-09 1993-03-03 The Boeing Company Apparatus and method for providing an adaptable interface between computers
GB9011084D0 (en) 1990-05-17 1990-07-04 Ag Patents Ltd Volume measurement
DE4036521C2 (en) 1990-11-16 1996-09-05 Vdo Schindling Device for the visual inspection of a liquid crystal display
US5440477A (en) * 1991-05-20 1995-08-08 Creative Pathways, Inc. Modular bottle-mounted gas management system
FR2681934B1 (en) * 1991-09-27 1993-12-31 Automation Mecanique Provencale METHOD AND INSTALLATION FOR FILLING LIQUID GAS BOTTLES AND FOR MONITORING SUCH BOTTLES AFTER FILLING.
US5297423A (en) * 1992-07-27 1994-03-29 Integrated Product Systems, Inc. Storage tank and line leakage detection and inventory reconciliation method
LU88212A1 (en) 1993-01-15 1993-05-17 Luxembourg Patent Co Device for filling and emptying a gas mud
FR2706051B1 (en) * 1993-06-03 1995-07-28 Taema Gas distribution control assembly and gas cylinder equipped with such an assembly.
US5379637A (en) * 1993-10-12 1995-01-10 General Motors Corporation Natural gas vehicle fuel gauge system
AU691270B2 (en) * 1994-06-24 1998-05-14 Kabushiki Kaisha Neriki Valve assembly for gas cylinder
FR2723202B1 (en) 1994-07-28 1996-10-25 Magneti Marelli France Sa PHYSICAL SENSOR, IN PARTICULAR A TEMPERATURE SENSOR
US5578993A (en) * 1994-11-28 1996-11-26 Autronics Corporation Temperature compensated annunciator
US5648765A (en) * 1995-03-08 1997-07-15 Cresap; Michael S. Tag tansponder system and method to identify items for purposes such as locating, identifying, counting, inventorying, or the like
JP3394835B2 (en) 1995-03-20 2003-04-07 株式会社キャットアイ Parts mounting device
US7174783B2 (en) * 1996-01-23 2007-02-13 Mija Industries, Inc. Remote monitoring of fluid containers
FR2749839B1 (en) * 1996-06-14 1998-09-18 Provencale D Automation Et De APPARATUS FOR FILLING BOTTLES WITH LPG
WO1998005415A1 (en) 1996-08-01 1998-02-12 Wiederkehr, Hans Process and plant for introducing a gas into a liquid
IT1293193B1 (en) 1997-02-19 1999-02-16 Htm Sport Spa DEVICE FOR SIGNALING OF DANGER AND / OR EMERGENCY CONDITIONS FOR SCUBA DIVING.
GB9724168D0 (en) 1997-11-14 1998-01-14 Air Prod & Chem Gas control device and method of supplying gas
WO1999040553A1 (en) 1998-02-05 1999-08-12 Wan Tae Kim Alarm device for sensing gas quantity within pressure vessel
FR2776768B1 (en) 1998-03-27 2000-05-05 Ades Technologies DEVICE FOR MEASURING AND CONTROLLING PRESSURE AND TEMPERATURE IN HYDRAULIC INSTALLATIONS
EP0982121B1 (en) 1998-07-15 2005-08-24 Agfa-Gevaert Laminate comprising a glass layer having crack lines
US6229448B1 (en) * 1999-04-12 2001-05-08 Innovative Sensor Solutions, Ltd. Intrinsically safe fluid tank overfill protection system
US6137417A (en) * 1999-05-24 2000-10-24 Mcdermott; Francis Pressure monitor and alarm for compression mounting with compressed gas storage tank
FR2794216B1 (en) * 1999-05-26 2001-08-03 Air Liquide INSTALLATION FOR FILLING A CONDITIONING VOLUME WITH GAS
US6822565B2 (en) * 1999-07-20 2004-11-23 Keith A. Thomas Wireless gauge alert
EP1126202B1 (en) 2000-02-18 2004-09-22 Kabushiki Kaisha Neriki Valve assembly for gas cylinder
ATE285052T1 (en) 2000-03-15 2005-01-15 Gaslow Internat Ltd CONTROL SYSTEM
US6543444B1 (en) 2000-04-10 2003-04-08 John E. Lewis System and method for air time remaining calculations in a self-contained breathing apparatus
US6789126B1 (en) * 2000-05-09 2004-09-07 Sun Microsystems, Inc. Addressing message gates in a distributed computing environment
US6542848B1 (en) 2000-07-31 2003-04-01 Chart Inc. Differential pressure gauge for cryogenic fluids
FR2814794B1 (en) 2000-10-03 2003-01-03 Air Liquide METHOD FOR MANAGING GASES IN CUTTING, WELDING OR HEAT TREATMENT
EP1356228B1 (en) * 2000-11-17 2008-08-20 VenTek LLC Valve with handle including sensors and memory
US6494343B2 (en) * 2001-02-15 2002-12-17 Advanced Technology Materials, Inc. Fluid storage and dispensing system featuring ex-situ strain gauge pressure monitoring assembly
US7104124B2 (en) * 2001-05-04 2006-09-12 Stabile James R Method for indicating duration of gas supply remaining and providing result to user thereof
DE10146457B4 (en) 2001-09-20 2006-11-30 Messer Cutting & Welding Gmbh Gas cylinder unit
CA2425851C (en) 2002-04-19 2009-10-13 Nicholas Peter White System and method for monitoring and controlling gaseous fuel storage systems
US7224273B2 (en) * 2002-05-23 2007-05-29 Forster Ian J Device and method for identifying a container
US6862649B2 (en) * 2002-06-07 2005-03-01 The Boeing Company Behavioral translation of datalink messages between different protocols and platforms
US7140257B2 (en) 2002-12-10 2006-11-28 Ashcroft Inc. Wireless transmitting pressure measurement device
US7188345B2 (en) * 2003-03-19 2007-03-06 International Business Machines Corporation Installation of data-driven business integration adapters
US6922144B2 (en) * 2003-10-17 2005-07-26 Praxair Technology, Inc. Monitoring system for a mobile storage tank
FR2863037B1 (en) * 2003-11-27 2006-04-07 Air Liquide PROCESS FOR THE PREPARATION AND / OR FILLING BY A PRESSURIZED GAS OF AT LEAST ONE RECEPIENT, AND CORRESPONDING INSTALLATION
DE202004000564U1 (en) 2004-01-15 2004-04-01 Keller AG für Druckmeßtechnik Electronic pressure gauge
JP2005295508A (en) * 2004-03-08 2005-10-20 Seiko Epson Corp Conversion of color image into monochrome image
FR2868160B1 (en) 2004-03-24 2007-09-28 Taema Sa SYSTEM FOR PROCESSING PRESSURE DATA IN A RESERVOIR
JP2005274412A (en) * 2004-03-25 2005-10-06 Denso Corp Temperature sensor integrated type pressure sensor device
US20060243347A1 (en) 2005-04-02 2006-11-02 Humphrey Richard L System for monitoring propane or other consumable liquid in remotely located storage tanks
GB2415072B (en) 2004-06-07 2008-06-11 Dmatek Ltd A monitoring and tracking network
US7086272B2 (en) * 2004-06-11 2006-08-08 Min Wu Calibration method for digital air pressure gauge
US20060011475A1 (en) * 2004-06-30 2006-01-19 Hung-Hsiang Lin In-situ monitoring and controlling system for chemical vessels or tanks
US7561040B2 (en) 2004-12-13 2009-07-14 Veeder-Root Company Wireless probe system and method for a fueling environment
CA2635698C (en) 2005-01-07 2015-02-17 Electrochem Solutions, Inc. Wireless fluid pressure sensor
DE102006008427A1 (en) 2005-03-23 2006-10-05 Pro-Micron Gmbh & Co. Kg Modular Systems Measurement arrangement has for measuring mechanical pressure, force or displacement has at least one part of evaluation electronics arranged separately with sensor measurement cell in common housing by means of dividing wall
JP2007064765A (en) 2005-08-30 2007-03-15 Fujitsu Ltd Rfid tag device, rfid reader writer device and distance measuring system
WO2007138208A1 (en) 2006-05-31 2007-12-06 Taema Device for indicating a physical quantity
FR2901876B1 (en) 2006-05-31 2008-10-03 Taema Sa DEVICE INDICATING A PHYSICAL SIZE
FR2901875A1 (en) 2006-05-31 2007-12-07 Taema Sa Liquid`s e.g. medical fluid, physical quantity e.g. pressure, indicating device for bottle, has pressure sensor integrated to case and resin filling interior volume of case, and connection insert fixed to sensor by welding
FR2901874B1 (en) 2006-05-31 2008-08-15 Taema Sa DEVICE INDICATING A PHYSICAL SIZE
FR2901873B1 (en) 2006-05-31 2008-07-11 Taema Sa DEVICE INDICATING A PHYSICAL SIZE
FR2910591B1 (en) 2006-12-21 2009-04-10 Air Liquide TAP FOR PRESSURIZED GAS TANK AND TANK COMPRISING SUCH FAUCET
FR2915800B1 (en) 2007-05-03 2009-09-18 Taema Sa METHOD FOR CONTROLLING A PRESSURIZED FLUID CONTAINER
FR2915799B1 (en) 2007-05-03 2010-10-01 Taema ELECTRONIC PRESSURE MEASURING PRESSURE GAUGE IN A CONTAINER
FR2915821B1 (en) 2007-05-03 2009-11-20 Air Liquide METHOD FOR PROCESSING DATA RELATING TO A PRESSURIZED FLUID BOTTLE
CA2836011C (en) * 2008-09-15 2016-01-19 Scott Technologies, Inc. Method and system for filling a gas cylinder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6360546B1 (en) * 2000-08-10 2002-03-26 Advanced Technology Materials, Inc. Fluid storage and dispensing system featuring externally adjustable regulator assembly for high flow dispensing
US20040112435A1 (en) * 2002-12-17 2004-06-17 Olander W. Karl Gas storage and dispensing system for variable conductance dispensing of gas at constant flow rate
US8047079B2 (en) * 2007-05-03 2011-11-01 L'air Liquide Societe Anonyme Pour L'etude Et Exploitation Des Procedes Georges Claude Method for controlling an electronic pressure gauge and pressure gauge therefor
US9046219B2 (en) * 2007-05-03 2015-06-02 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Method for controlling a homogeneous batch of pressurized-fluid cylinders
US20100037982A1 (en) * 2008-08-14 2010-02-18 Bauer Compressors, Inc. Method and apparatus for auto-cascade bottle filling
US20170002983A1 (en) * 2014-01-22 2017-01-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Geoges Claude Valve for a pressurized fluid cylinder and corresponding cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3418619A1 (en) * 2017-06-24 2018-12-26 Messer Group GmbH System for remote surveying and marking of a compressed gas cylinder assembly

Also Published As

Publication number Publication date
EP2153109B1 (en) 2010-08-04
FR2915801B1 (en) 2009-07-17
WO2008139074A1 (en) 2008-11-20
FR2915801A1 (en) 2008-11-07
US9046219B2 (en) 2015-06-02
ATE476624T1 (en) 2010-08-15
US20100132437A1 (en) 2010-06-03
EP2153109A1 (en) 2010-02-17
DE602008002075D1 (en) 2010-09-16

Similar Documents

Publication Publication Date Title
US20150233783A1 (en) Method for controlling a homogeneous batch of pressurised fluid cylinders
US7619523B2 (en) Gas cylinders monitoring by wireless tags
US20200072698A1 (en) System and method for monitoring and reporting liquid nitrogen container level
US5612671A (en) Method of learning tire pressure transmitter ID
US20120007736A1 (en) System and Method of Determining Gas Detector Information and Status via RFID Tags
US6359556B1 (en) Tire air pressure monitoring apparatus and method
US20130145834A1 (en) Universal tire pressure monitoring system tool and absolute pressure compensation
CA2854497C (en) System and method for tracking agricultural commodities, e.g. crop inventories
KR20060003805A (en) Radio ic tag reader writer, radio ic tag system, and radio ic tag data writing method
EP3238130A1 (en) Environmental parameter monitor with machine readable display
WO2020236480A1 (en) Gas detector test and calibration method and apparatus
WO2002005235A9 (en) Method and apparatus for monitoring a product during shipping, storage and use
US20200386649A1 (en) System and method for monitoring and reporting liquid nitrogen container level
US20140136430A1 (en) Product integrity monitor
US20050220634A1 (en) Air brake system characterization by self- learning algorithm
WO2002007014A1 (en) Data logger for monitoring a consignment of goods
US6701230B2 (en) Method and system for monitoring the wheels of a vehicle
JP2011502086A (en) How to verify container integrity
CN106152410A (en) Air conditioning control device, control method and air-conditioner
US10384087B2 (en) Management server for managing maintenance of fire extinguishers and extinguisher management system including the same
CN112903211A (en) Equipment and method for detecting tightness of gas pipeline
US20040117082A1 (en) Device for transmitting measurements of a sensor to a central unit
CN214793594U (en) Pressure detection device and pressure detection system
US7739895B2 (en) Verification of scale calibration method and apparatus
CN111674210B (en) Tire freezing alarm system

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION