CA2704839A1 - Pressure testing apparatus for gas service delivery systems - Google Patents

Pressure testing apparatus for gas service delivery systems Download PDF

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Publication number
CA2704839A1
CA2704839A1 CA 2704839 CA2704839A CA2704839A1 CA 2704839 A1 CA2704839 A1 CA 2704839A1 CA 2704839 CA2704839 CA 2704839 CA 2704839 A CA2704839 A CA 2704839A CA 2704839 A1 CA2704839 A1 CA 2704839A1
Authority
CA
Canada
Prior art keywords
valve
pressure
tank
gas
delivery system
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.)
Granted
Application number
CA 2704839
Other languages
French (fr)
Other versions
CA2704839C (en
Inventor
Jimmie B. Shaw
Thomas W. Young
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.)
PRESTO-TAP LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2704839A1 publication Critical patent/CA2704839A1/en
Application granted granted Critical
Publication of CA2704839C publication Critical patent/CA2704839C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0007—Fluidic connecting means
    • G01L19/0015—Fluidic connecting means using switching means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/16—Dials; Mounting of dials
    • 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
    • G01M3/3209—Details, e.g. container closure devices
    • 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
    • F17C2201/0109—Shape cylindrical with exteriorly curved 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
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2205/0308—Protective caps
    • 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
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0338—Pressure regulators
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/038—Detecting leaked fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8326—Fluid pressure responsive indicator, recorder or alarm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87877—Single inlet with multiple distinctly valved outlets

Abstract

A gas delivery system for propane or natural gas includes a gas service line, a pressure regulator connected in the gas service line, and a flow control valve device permanently installed at a predetermined location in the gas service line, e.g., upstream of the regulator or downstream of a gas meter in the case of a natural gas system. The flow control valve device includes a valve body incorporating an integral pressure tap for enabling a measurement of gas pressure at the predetermined locations. The valve device also includes a valve operator having an open position in which flow takes place through the valve device and a closed position in which flow through the valve device is blocked and a locking mechanism with a specialized key issued only to service personnel for selectively locking the valve operator in the open and closed positions.

Claims (13)

1. A gas delivery system including a gas service line, a pressure regulator connected in the gas service line, and a flow control valve device permanently installed at a predetermined location in said gas service line, said flow control valve device comprising a valve body including an integral pressure tap for enabling a measurement of gas pressure at said predetermined location; a valve operator having an open position in which flow takes place through the valve device and a closed position in which flow through the valve device is blocked and locking means for selectively locking said valve operator in said open position and in said closed position.
2. A gas delivery system according to claim 1, wherein said valve operator comprises a valve handle, said valve unit further includes a valve stem and said locking means comprises a locking screw connecting said valve handle to said valve stem, said locking screw including a locking recess of a non-standard shape adapted to engage a locking tool including a screwdriver portion of a shape matching that of said locking recess.
3. A gas delivery system according to claim 1, wherein said pressure tap includes a flow restrictive orifice formed therein.
4. A gas delivery system according to claim 1, wherein said system comprises a propane delivery system including a propane tank and a tank service valve, and said flow control valve device is connected between said tank service tank and said regulator.
5. A gas delivery system according to claim 1, wherein said system comprises a propane gas delivery system including a propane tank and a tank service valve, said regulator includes first and second regulator stages, and said flow control valve is connected between said first and second regulator stages.
6. A gas delivery system according to claim 1, wherein said system comprises a natural gas delivery system and said valve is installed in said service line upstream of said regulator.
7. A gas delivery system according to claim 1, wherein said system comprises a natural gas delivery system and said valve is installed in said service line downstream of said regulator.
8. A gas delivery system according to claim 1, wherein said system comprises a natural gas delivery system including a gas meter and said valve is installed in said service line downstream of said meter.
9. A natural gas delivery system including a gas service line, a pressure regulator connected in the gas service line, a gas meter connected in said gas service line, and a flow control valve device permanently installed in the gas service line downstream of said meter, said flow control valve device comprising a valve body including an integral pressure tap for enabling measurement of gas pressure at said meter, a valve operator having an open position in which natural gas flows through the valve device and a closed position wherein natural gas is blocked from flow through the valve device and locking means for selectively locking said valve operator in said open and closed positions.
10. A natural gas delivery system according to claim 9, wherein said valve operator comprises a valve handle, said valve unit further includes a valve stem and said locking means comprises a locking screw connecting said valve handle to said valve stem, said locking screw including a locking recess of a non-standard shape adapted to engage a locking tool including a screwdriver portion of a shape matching that of said locking recess.
11. A kit for use in a propane tank system for enabling detection of escaping gas, the tank system including a propane tank, a tank service valve connected to the tank, and at least one regulator connected to the tank service valve, as well as at least one pressure port for enabling pressure in the system to be measured at the location of the port, and said kit comprising: a valve assembly for connection, in use, to a selected pressure port in the tank system, said valve assembly comprising:
a valve housing including a central bore therein and an end connection for providing connection of the valve housing to the pressure port, and a valve unit received in the central bore of said valve housing and including a valve operator actuable to open a fluid connection to the pressure port when said valve assembly is connected to the pressure port; and a separate pressure gauge adapted to be carried by tank service personnel and including a connector for providing connection of said pressure gauge to said valve assembly when said valve assembly is connected to said pressure port, and for, when connected to said valve assembly, providing actuation of said valve operator so that, in use with the tank service valve open, the gauge provides a reading of the pressure at the pressure port and, in use with the system pressurized and the tank service valve closed, the gauge provides an indication of the presence of a leak or open line in the propane tank system.
12. A kit as claimed in claim 11, wherein said pressure gauge comprises an indicating needle and further includes a pressure scale and an ambient temperature scale calibrated relative to said pressure scale so that the position of said needle that provides a reading of gauge pressure on said pressure scale also provides a reading of the corresponding minimum ambient temperature on said ambient temperature scale.
13. A pressure gauge device for use in a propane tank system, including a propane tank and a tank service valve, for enabling detection of propane escaping the propane tank system, said pressure gauge device comprising a pressure gauge including a connector for providing connection to a valve assembly, including a valve operator, connected in the propane tank system, and for, when connected to the valve assembly, providing actuation of the valve operator so that, in use with the tank service valve open, the gauge provides a reading of the pressure in the propane tank system at the valve assembly and, in use with the propane system pressurized and the tank service valve closed, the gauge provides an indication of the presence of a leak or open line in the propane tank system, said pressure gauge further comprising an indicating needle, a pressure scale, and an ambient temperature scale calibrated relative to said pressure scale so that the position of said needle that provides a reading of gauge pressure on said pressure scale also provides a reading of the corresponding minimum ambient temperature on said ambient temperature scale.
CA 2704839 2001-04-30 2002-04-25 Pressure testing apparatus for gas service delivery systems Expired - Lifetime CA2704839C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/843,955 2001-04-30
US09/843,955 US6719002B2 (en) 1996-02-20 2001-04-30 Pressure testing apparatus for gas service delivery systems
CA 2383482 CA2383482C (en) 2001-04-30 2002-04-25 Pressure testing apparatus for gas service delivery system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2383482 Division CA2383482C (en) 2001-04-30 2002-04-25 Pressure testing apparatus for gas service delivery system

Publications (2)

Publication Number Publication Date
CA2704839A1 true CA2704839A1 (en) 2002-10-30
CA2704839C CA2704839C (en) 2012-07-24

Family

ID=25291412

Family Applications (2)

Application Number Title Priority Date Filing Date
CA 2383482 Expired - Lifetime CA2383482C (en) 2001-04-30 2002-04-25 Pressure testing apparatus for gas service delivery system
CA 2704839 Expired - Lifetime CA2704839C (en) 2001-04-30 2002-04-25 Pressure testing apparatus for gas service delivery systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA 2383482 Expired - Lifetime CA2383482C (en) 2001-04-30 2002-04-25 Pressure testing apparatus for gas service delivery system

Country Status (2)

Country Link
US (1) US6719002B2 (en)
CA (2) CA2383482C (en)

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US7600536B1 (en) 2006-07-12 2009-10-13 Philip Steininger Gas distribution manifold for camping
US7766006B1 (en) 2007-03-09 2010-08-03 Coprecitec, S.L. Dual fuel vent free gas heater
US8057219B1 (en) 2007-03-09 2011-11-15 Coprecitec, S.L. Dual fuel vent free gas heater
US8403661B2 (en) 2007-03-09 2013-03-26 Coprecitec, S.L. Dual fuel heater
US8118590B1 (en) 2007-03-09 2012-02-21 Coprecitec, S.L. Dual fuel vent free gas heater
US8196615B1 (en) * 2008-04-21 2012-06-12 Jim Browarny Liquid/air pressure testing tool
ES2322750B1 (en) * 2009-02-10 2010-07-15 Francisco Santi Soriano Romero DEVICE FOR LEAK CONTROL OF AN ENDOSCOPE.
EP2302270B1 (en) * 2009-09-29 2012-09-12 Sun Test Systems B.V. A method for determining a functioning of a gas bleed valve
US9335190B1 (en) 2010-06-28 2016-05-10 Presto-Tap, Llc Fitting for use in fuel gas systems and applications using same
US8899971B2 (en) 2010-08-20 2014-12-02 Coprecitec, S.L. Dual fuel gas heater
US9342077B2 (en) * 2011-11-04 2016-05-17 Saint-Gobain Performance Plastics Corporation System, method and apparatus for plumbing fitting with removable sampling valve
US10113780B2 (en) * 2011-11-14 2018-10-30 The Armor All/Stp Products Company Refrigerant charging assemblies and methods of use
US20130187075A1 (en) * 2012-01-23 2013-07-25 Jomar International, Ltd. Dielectric union valve for liquid propane
DE102014005783A1 (en) 2014-04-23 2015-10-29 Armaturenfabrik Franz Schneider GmbH + Co. KG Connecting device for making a connection between a meter / valve block and a pipeline
US10364906B1 (en) 2016-07-13 2019-07-30 Engineered Controls International, Llc Dielectric regulator
US11614204B2 (en) 2017-03-03 2023-03-28 Federal Resources Supply Company, Llc Storage vessel leak detection, remediation, and method of training
US20190323924A1 (en) * 2018-04-20 2019-10-24 Kai-Ee Inc. Testing device for vehicles
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Also Published As

Publication number Publication date
CA2383482A1 (en) 2002-10-30
US6719002B2 (en) 2004-04-13
CA2383482C (en) 2010-09-14
CA2704839C (en) 2012-07-24
US20010037829A1 (en) 2001-11-08

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