EP2667082A1 - Protective device - Google Patents

Protective device Download PDF

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Publication number
EP2667082A1
EP2667082A1 EP13168421.9A EP13168421A EP2667082A1 EP 2667082 A1 EP2667082 A1 EP 2667082A1 EP 13168421 A EP13168421 A EP 13168421A EP 2667082 A1 EP2667082 A1 EP 2667082A1
Authority
EP
European Patent Office
Prior art keywords
protective device
cap
valve body
output end
abutment
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.)
Withdrawn
Application number
EP13168421.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ezio Cavagna
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.)
Cavagna Group SpA
Original Assignee
Cavagna Group SpA
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 Cavagna Group SpA filed Critical Cavagna Group SpA
Publication of EP2667082A1 publication Critical patent/EP2667082A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F17C13/06—Closures, e.g. cap, breakable member
    • 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
    • F17C2205/0338—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
    • 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
    • F17C2223/0146—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
    • F17C2223/033—Small pressure, e.g. for liquefied gas

Definitions

  • the present invention relates to a protective device for valves for dispensing gas such as LPG, of the type known commercially as "Jumbo valves".
  • Such type of valve is normally employed for dispensing butane, propane or a mixture of the two gases and comprises a valve body which forms, internally, an axial passage duct which lies between a first, input end and a second, output end for connection respectively to a gas containment bottle and to a device for dispensing the gas typically by means of a pressure regulator.
  • the valve body has, on its outer surface and substantially at the second, output end, a recess for accommodating a sealing gasket.
  • Such recess extends between a first abutment formed in a position which is proximate to the second, output end and a second abutment formed in a position which is spaced axially from the first abutment.
  • the valve can be associated detachably with the pressure regulator by quick coupling means which, normally, comprise a track defined on the outer surface of the valve body which can be coupled to a retention device, typically using balls, which is supported by the pressure regulator.
  • valve body Along the extension of the passage duct and, generally, proximate to the second, output end, the valve body supports a cylindrical body which defines a flow control chamber associated with a flow control element.
  • protection devices which are normally constituted by plastic caps, to be detachably applied to the second, output end of the valve body in order to prevent, on the one hand, dust or dirt from working its way into the valve body and at the same time in order to reduce the outflow of gas from the valve.
  • the protective caps used today have an element for engaging the valve body and, normally, an elongated closing element which is adapted, with the flat surface that forms its free end, to close, in an upper region, the end of the cylindrical body which is directed toward the second, output end.
  • the aim of the present invention is to solve the above-mentioned problems and overcome the drawbacks, by providing a protective device which is considerably easier and more practical to use than conventional solutions.
  • an object of the invention is to make available a protective device which is extremely reliable in use.
  • Another object of the invention is to provide a protective device that is capable of being applied to all dispensing valves (such as "Jumbo valves") with the technical characteristics described above.
  • Another object of the invention is to provide a protective device that ensures an effective seal against the outflow of gas.
  • Another object of the invention is to make available a protective device which is low-cost, so as to make its use advantageous from an economic viewpoint as well.
  • the present invention relates to a protective device, generally designated with the reference numeral 1, for valves for dispensing gas (typically butane or propane or mixtures thereof) of the type commercially known as "Jumbo valves".
  • a protective device for valves for dispensing gas (typically butane or propane or mixtures thereof) of the type commercially known as "Jumbo valves”.
  • the protective device 1 comprises a cap 2 which can be associated detachably with a valve 10 of the type comprising a valve body 11 which forms a passage duct 12 which lies between a first, input end 12a and a second, output end 12b for connection respectively to a gas containment tank and to a pressure regulator or to a dispensing device in general.
  • a valve 10 of the type comprising a valve body 11 which forms a passage duct 12 which lies between a first, input end 12a and a second, output end 12b for connection respectively to a gas containment tank and to a pressure regulator or to a dispensing device in general.
  • the passage duct 12 has an axial extension.
  • the valve body 11 has, on its outer surface 11a and substantially at the second, output end 12b, a recess 13 for accommodating a sealing gasket 14, advantageously hollow and cylindrical, which lies between a first abutment 15 formed in a position which is proximate to the second, output end 12b and a second abutment 16 which is formed in a position spaced axially from the first abutment 15.
  • the valve body 11 can, in particular, be associated detachably with the pressure regulator, not shown in the figures, by quick coupling means.
  • the cap 2 comprises a lateral portion 3 which is designed to be arranged around a region of the outer surface 11a of the valve body 11 which is proximate to the second, output end 12b.
  • the lateral portion 3 supports means 4 for the detachable coupling of the cap 2 with the valve body 11.
  • Such detachable coupling means 4 are, in particular, adapted to be engaged with the valve body between the first abutment 15 and the sealing gasket 14.
  • the cap 2 supports a sealing body 5, which is adapted to mate with a cylindrical body 17 defining a flow control chamber 19 which is associated with a flow control element 18; the cylindrical body 17 is supported by the valve body 11 and is positioned along the extension of the passage duct 12 and, conveniently, is arranged proximate to the second, output end 12b.
  • the detachable coupling means 4 comprise at least one retention element 4a which extends in a radial direction from the inner surface of the lateral portion 3.
  • the retention element 4a has a circumferential extension.
  • the sealing body 5 is adapted to be coupled with the end 17a of the cylindrical body 17 which is directed toward the second, output end 12b.
  • the sealing body 5 comprises an elongated sealing element 6 which extends, during use, along a longitudinal direction 101 which corresponds substantially to the longitudinal axis 100 of the cylindrical body 17.
  • the free end of the elongated sealing element 6 is adapted to enter, advantageously with interference, the cylindrical body 17.
  • the flow control element 18 has, at the end directed toward the second, output end 12b, an engagement head 18a.
  • the flow control element 18 moreover can move, with respect to the cylindrical body 17, between a flow control position, in which the engagement head 18a is arranged close to the second, output end 12b, and at least one passage position, in which the engagement head 18a is arranged in a spaced position with respect to the second, output end 12b.
  • the elongated sealing element 6 has, at its free end, an axial hollow 7 which is designed to accommodate, when the cap 2 is stably associated with the valve body 11, the free end portion of the engagement head 18a.
  • the cap 2 comprises a base element 8 which is connected, advantageously at its peripheral portion, to the lateral portion 3 and which supports the elongated sealing element 6.
  • the base element 8 extends on a plane of arrangement which is arranged at right angles to the direction of extension 101 of the elongated sealing element 6.
  • the cap 2 is connected to a manoeuvring body 9 which is adapted to allow traction, by the user, on the cap 2 so as to facilitate its removal from the valve body 11.
  • Such manoeuvring body 9 comprises a grip ring which is connected to a connecting portion formed substantially at the free edge 3a of the lateral portion 3.
  • the cap 2 is made of plastic.
  • the elongated sealing element 6 can comprise a base body 6a which is provided monolithically with the cap 2 and a sealing body 6b which can be connected stably to the free end of the base body 6a and is made of a softer material than the base body 6a, for example elastomer, which is capable of deforming following the engagement inside the cylindrical body 17 so as to ensure a substantially hermetic seal.
  • the free edge of the elongated sealing element 6 is structured so as to deform elastically following the compression action, during insertion of the elongated sealing element 6 in the cylindrical body 17, of such free edge against an annular abutment which extends along the extension of the cylindrical body 17 about the longitudinal axis 100.
  • the elastic deformation of the free edge of the elongated sealing element 6 can be obtained by using suitable materials (for example elastomers) or by shaping the free edge itself in an adapted manner (for example by way of tapering).
  • the elongated sealing element 6 prefferably defines a circumferential hollow 6b for accommodating a sealing body which is constituted, for example, by an O-ring 6c.
  • Such circumferential sealing hollow 6a can be provided during the molding of the elongated sealing element 6 (and in general of the cap 2) or by way of hot-folding the lower free end of the sealing element 6.
  • the valve 11 has, at its outer surface 11a, a track 19 which is adapted to accommodate an engagement device supported by the pressure regulator.
  • a safety valve can be provided along the extension of the passage duct 12.
  • the elongated sealing element 6 is inserted in the cylindrical body 17, simultaneously locking the lateral portion 3 around the top of the second, output end 12b thanks to the action of the detachable coupling means 4 which engage between the first abutment 15 and the sealing gasket 14.
  • the cap 2 there can be at least one discharge opening which is adapted to allow the outflow of the gas possibly through the connecting region between the inner surface of the cylindrical body 17 and the outer surface of the elongated sealing element 6 in order to prevent, in fact, the force exerted by the pressure of such gas from resulting in the disengagement of the cap 2 from the valve body 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Valve Housings (AREA)
EP13168421.9A 2012-05-24 2013-05-20 Protective device Withdrawn EP2667082A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000107A ITVR20120107A1 (it) 2012-05-24 2012-05-24 Dispositivo di protezione

Publications (1)

Publication Number Publication Date
EP2667082A1 true EP2667082A1 (en) 2013-11-27

Family

ID=46397572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13168421.9A Withdrawn EP2667082A1 (en) 2012-05-24 2013-05-20 Protective device

Country Status (3)

Country Link
EP (1) EP2667082A1 (it)
CL (1) CL2013001453A1 (it)
IT (1) ITVR20120107A1 (it)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174657A2 (en) * 2000-07-17 2002-01-23 Repsol Butano, S.A. Sealer cap for pressurized gas container valve
US20080016924A1 (en) * 2006-07-18 2008-01-24 Goodwin Dwaine Lock assembly
EP2119535A1 (en) * 2008-05-16 2009-11-18 Max Co., Ltd. Fuel cartridge and gas-combustion type driving tool
US20110278316A1 (en) * 2010-05-11 2011-11-17 Bernardo Herzer Protective Cap for Tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174657A2 (en) * 2000-07-17 2002-01-23 Repsol Butano, S.A. Sealer cap for pressurized gas container valve
US20080016924A1 (en) * 2006-07-18 2008-01-24 Goodwin Dwaine Lock assembly
EP2119535A1 (en) * 2008-05-16 2009-11-18 Max Co., Ltd. Fuel cartridge and gas-combustion type driving tool
US20110278316A1 (en) * 2010-05-11 2011-11-17 Bernardo Herzer Protective Cap for Tank

Also Published As

Publication number Publication date
CL2013001453A1 (es) 2013-10-11
ITVR20120107A1 (it) 2013-11-25

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