AU601223B2 - Dispensing nozzle - Google Patents

Dispensing nozzle Download PDF

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Publication number
AU601223B2
AU601223B2 AU79191/87A AU7919187A AU601223B2 AU 601223 B2 AU601223 B2 AU 601223B2 AU 79191/87 A AU79191/87 A AU 79191/87A AU 7919187 A AU7919187 A AU 7919187A AU 601223 B2 AU601223 B2 AU 601223B2
Authority
AU
Australia
Prior art keywords
nozzle
valve
lever
connector
dispensing nozzle
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.)
Ceased
Application number
AU79191/87A
Other versions
AU7919187A (en
Inventor
John Francis Treloar
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.)
RAOLERT Pty Ltd
Original Assignee
RAOLERT Pty Ltd
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 RAOLERT Pty Ltd filed Critical RAOLERT Pty Ltd
Publication of AU7919187A publication Critical patent/AU7919187A/en
Application granted granted Critical
Publication of AU601223B2 publication Critical patent/AU601223B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • 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
    • F17C2205/0341—Filters
    • 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
    • F17C2205/0376—Dispensing pistols
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Description

Il A_ 2hiM; L"~ AU-AI-79191/87 t PCT WORLD INTELLECTUAL PROPERTY ORGANIZATION PCT Internatial Bure
I
INTERNATIONAL APPLICATIO U SH4 U E .HE 3ENT COOPERATION TREATY (PCT) (51) International Patent Classification 4 International Publication Number: WO 88/ 01601 B67D 5/37 Al (43) International Publication Date: 10 March 1988 (10.03.88) (21) International Application Number: PCT/AU87/00300 (81) Designated States: AT (European patent), AU, BE (European patent), CH (European patent), DE (Euro- (22) International Filing Date: 1 September 1987 (01.09,87) pean patent), FR (European patent), GB (European patent), IT (European patent), JP, LU (European patent), NL (European patent), SE (European patent), (31) Priority Application Number: PH 7771 US.
(32) Priority Date: 1 September 1986 (01.09,86) Published (33) Priority Country: AU With international search report.
(71) Applicant (for all designated States except US): RAO- "/4 LERT PTY. LIMITED [AU/AU]: 307 309 The Kingsway, Caringbah, NSW 2229 (AU).
(72) Inventor; and Inventor/Applicant (for US only) TRELOAR, John, Francis [AU/AU]; 31 Immarna Avenue, Lilli Pilli, l.0 2 APR NSW 2229 (AU).
(74) Agents:-MAXWELL, Peter, Francis. et al,;.HaIforcLd,& AUSTl.at a -Maxwell, Level 20, National Mutual Centre,. 4 Mar- -ket-Streetr-,Sydney, NSW-2000 2 4 MAR i?9 ThIu sy PAMTEn O tICI n t '3 7 R t. T p i" ;A1 (54) Title: DISPENSING NOZZLE 'K V Vd t :~rtl il~ ,ua~ru~tsr.,,tmr.~.: r ,L I 3D (57) Abstract A dispensing nozzle has a body (10) adapted to be connected to a supply of liquidified petroleum gas by connector piece (11) and to a vehicle gas tank by I threaded insert (19) in swivel nut Gas is applied to the reservoir within the valve body (24) through the connector piece (11) and is delivered through a main valve having a valve seat (33) and a pis.
ton valve Piston valve (23) and valve cylinder (22) form a dash pot which is pressurised by gas flowing through passageway There is an annular gap between the piston valve (24) and the valve cylinder (22) through which gas will bleed as soon as the valve (23) is cracked from tsseat (33) to reduce the pressure in the dash pot which enables easy opening of the main valve. The swivel nut (15) is locked in position by pin (20) which engages one of a plurality of recesses (21) at its rear face when the nozzle Is open.
I -1- DISPENSING NOZZLE FIELD OF INVENTION This invention relates to nozzle assemblies and more particularly to nozzle assemblies suitable for dispensing liquified petroleum gas.
BACKGROUND ART Although the prior art contains a wide variety of liquifi petroleum gas dispensing nozzles, none incorporates a simple yet satisfactory locking arrangement that will O prevent accidental uncoupling of the nozzle from a tank 1 whilst the dispensing valve of the nozzle is open.
*o Accordingly, it is an object of the present invention to provide such a simple, yet workable locking arrangement.
DISCLOSURE OF THE INVENTION According to one aspect of the invention there is provided a dispensing nozzle having a connector adapted to couple the nozzle to a tank or the like and valve means operable by a lever to open and close the nozzle characterised by the provision of locking means operable to prevent uncoupling of the connector whenever the lever is in S its position which opens the valve wherein said locking means Comprises a pin actuated by the lever to engage one of a plurality of recesses formed in the connector.
A
d
I
U
0S S
S
C
C S S C* C e.g.
S S e.g.
S S
S
I -2- Fig. I is a front perspective view of a dispensing nozzle according to one embodiment of the invention, 1 I WO 88/01601 PCT/AU87/00300 -3- Fig. 2 is a rear perspective view of the dispensing nozzle shown in Fig. 1, Fig. 3 is a cross-sectional view of the dispensing nozzle shown in Figs. 1 and 2 with the main valve closed, Fig. 4 is an enlarged, partially cutaway view similar to Fig. 3 but with the main..valve open,- Fig. 5 is an enlarged, cutaway view of the lever locking arrangement prior to engagement, and, Fig. 6 is a view similar to Fig. 5 with the lever locked in the open position.
DESCRIPTION OF PREFERRED EMBODIMENT The nozzle assembly shown in the drawings includes a hollow body 10 having a connector piece 11 adapted to be connected to a supply line. The nozzle is operated by lever 12 that pivots about lever pin 13 and which is protected by guard 14.
A swivel nut 15 mounted over the outlet end 16 of the nozzle extends rearwardly towards the lever guard 14. The swivel nut 15 rotates on balls 17 that are accessible through ball plug 18. The swivel nut 15 has a threaded insert 19 by means of which the nozzle is connected to a L.P.G. tank of, say, a vehicle (not shown). Whenever the nozzle is open, rotation of the swivel nut 15 with respect of the body 10 is prevented by pin 20 engaging one of recesses 21 formed around the rear face of the swivel nut 15 whenever the nozzle is open.
WO 88/01601 PCT/AU87/00300 -4- The coupler portion of the nozzle includes a pressure release means comprising a dashpot system that consists of a cylinder 22 and a piston valve 23. As can be seen in Figs. 3 and 4 there is a small (say imm) annular clearance between the cylinder 22 and the piston valve 23 to allow leakage to occur as described below. The cylinder 22 is located within a valve body 24, the-hollow interior of-which constitutes the gas reservoir, and is held in position by filter body which supports a filter 26 and which is secured by means of circlip 27. A nose piece 28 is biased towards the position shown in Fig. 3 by a nose piece spring 29 positioned between the recessed end face of nose piece 14 and the recessed front face of a slide sleeve 30 that is mounted around the front end of the body 10 and the valve body 24.
An ring 31 seals the valve body 24 with respect to the body 10 and slide sleeve spring 32 connected between a rearwardly facing shoulder of the slide sleeve 30 and a forwardly facing shoulder of the valve body 24 acts as a return spring which comes into operation when the nozzle is being disconnected.
A piston valve seat 33 located at the downstream end of the valve body 24 is engaged by the front end of the piston valve 23 when the nozzle is closed. An ring 34 at the end of valve body 24 seals the valve body 24 with respect to the centrally located, rearwardly extending projection of the nose piece 28 when the nozzle is open. The nose piece 28 has a gas passageway 35 and an actuating abutment 36.
WO 88/01601 PCT/AU87/00300 In operation, the swivel nut 15 is connected to an adaptor on the L.P.G. tank of a vheicle and in so doing, the nose piece 28 is forcei to the right of Fig. 3 against the operation of nose piece spring 29 to close the gap between the upstream end of the nose piece 28 and the downstream end of the slide sleeve 30. At the same time, the gap between the abutment 36 of the nose piece,. 28 and the front face of the piston valve 23 is narrowed by the same amount.
The trigger lever 12 is then operated by moving its lower end to the right in Fig. 3 whereby its upper end pivots about pin 13 and drives the valve body 24 towards the nose piece 28. The abutment 36 of the nose piece 28 then lifts the front face of the piston valve 23 from its seat 33.
The pressure within the dashpot formed by the cylinder 22 and piston valve 23 is normally set by flow of L.P.G. from the body 10 through a bleed hole 37 on the axis of the cylinder 22. When the piston valve 23 is lifted from its seat 33, the pressure in the dashpot chamber is reduced by leakage through the annular gap described above to enable easy opening of the main valve 23, 33 by further movement of the lever 12.
The main valve 23, 33 is fully opened by further movement of valve body 24 towards the nose piece 28 (caused by further movement of lever 12) which moves the valve seat 33 away from the front end face of piston valve 23 against the action of spring 32. When the nozzle is open, the pin engages one of the recesses 21 to prevent rotation of the 6 swivel nut When the valve 23, 33 is cracked, the gas escapes from the dashpot 33, 23 faster than gas enters the passageway 37 and thus the pressure in the dashpot is reduced. The piston valve 23 is forced into the cylinder 22 against the action of spring 38 to open fully the valve 23, 33 (see Fig. Gas then flows, at full pressure, in the path shown by the arrows 9 in Fig. 4 from connector 11, through the reservoir formed by the valve body 24, through the ports 40 at the upstream end 1 .IE of cylinder 22, around the dashpot 22, 23 and through the ports 39 in the abutment 36 of the nose piece 28 to be delivered through passageway The lever 12 may be held in the open position by a latch 41 which is shown in Figs. 3, 5 and 6. The latch 41 is mounted on pin 42 in the guard 14 and biased by latch spring 43 as can be seen in Figs. 5 and 6. The hooked ei,d 44 of the latch 41 engages latch pin 45 in the end of the lever 12.
When the trigger lever 12 is released, the piston valve 23 closes against the valve seat 33 and the nose piece 28 is disengaged from the "O0 ring 34. The locked up volume of L.P.G. is then discharged to atmosphere.
Various modifications may be made in details of design and construction without departing from the scope and ambit of the invention.
L,

Claims (2)

1. A dispensing nozzle having a connector adapted to couple the nozzle to a tank or the like and valve means operable by a lever to open and close the nozzle characterised by the provision of locking means operable to prevent uncoupling of the connector whenever the lever is in its position which opens the valve wherein said locking means comprises a pin actuated by the lever to engage one of a plurality of recesses formed in the connector.
2. A dispensing nozzle incorporating locking means S as hereinbefore particularly described with reference to what is shown in the accompanying drawings. DATED this 8th day of June, 1990. h* RAOLERT PTY. LIMITED Patent Attorneys for the Applicant: PETER MAXWELL ASSOCIATES. 9 /com/87 1 071
AU79191/87A 1986-09-01 1987-09-01 Dispensing nozzle Ceased AU601223B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH7771 1986-09-01
AUPH777186 1986-09-01

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU55126/90 Division 1987-09-01

Publications (2)

Publication Number Publication Date
AU7919187A AU7919187A (en) 1988-03-24
AU601223B2 true AU601223B2 (en) 1990-09-06

Family

ID=3771797

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79191/87A Ceased AU601223B2 (en) 1986-09-01 1987-09-01 Dispensing nozzle

Country Status (2)

Country Link
AU (1) AU601223B2 (en)
WO (1) WO1988001601A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU643377B2 (en) * 1991-04-18 1993-11-11 Gilbarco Aust Limited Nozzle locking device
AU644187B2 (en) * 1990-07-05 1993-12-02 L G Equipment Pty Limited LPG filler valve receptacle
AU671748B2 (en) * 1993-05-14 1996-09-05 L G Equipment Pty Limited Pressurized fluid dispensing nozzle
AU671766B2 (en) * 1993-07-16 1996-09-05 L G Equipment Pty Limited Fluid dispensing nozzle

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836365A1 (en) * 1988-10-26 1990-05-10 Schering Ag FILLING DEVICE
FR2686680B1 (en) * 1992-01-28 1994-08-26 Staubli Sa Ets SAFETY APPARATUS FOR LOADING GAS CAPACITIES UNDER HIGH PRESSURE.
SG49609A1 (en) * 1993-05-14 1998-06-15 Gogas Pty Ltd Pressurized fluid dispensing nozzle
WO1995002554A1 (en) * 1993-07-16 1995-01-26 Gogas (Australia) Pty. Ltd. Fluid dispensing nozzle
DE20203247U1 (en) 2002-03-02 2003-04-17 Weh, Erwin, 89257 Illertissen Connection coupling with data interface
DE20203246U1 (en) 2002-03-02 2003-04-17 Weh, Erwin, 89257 Illertissen Connection coupling with sliding sleeve and collets
DE20203248U1 (en) 2002-03-02 2003-04-17 Weh, Erwin, 89257 Illertissen connection coupling
DE202004011088U1 (en) 2004-07-14 2005-08-25 Weh, Erwin Locking device for a quick-connect coupling
DE202005011557U1 (en) * 2005-07-22 2005-09-29 Hammelmann Maschinenfabrik Gmbh High pressure spray gun includes pressure lever pivotally connected to grip part and pressing against free end of grip lever in functioning position for easier use with less effort
FR2911593B1 (en) * 2007-01-18 2009-04-10 Cinetic Filling METHOD FOR TIGHTENING / DISCARDING A TEST OR FILLING ADAPTER FOR A FLUID CONTAINER OR CIRCUIT, AND CORRESPONDING ADAPTER
DE202009013012U1 (en) * 2009-09-28 2011-03-31 Apel, Helga Harnstoffbefüllkopf
US9409762B1 (en) * 2014-07-30 2016-08-09 Schultz Engineered Products, Inc. Liquid delivery nozzle
JP6034462B1 (en) * 2015-09-28 2016-11-30 株式会社タカギ Nozzle gun and lever lock mechanism
KR102322855B1 (en) * 2017-04-25 2021-11-08 현대자동차주식회사 Gas receptacle
DK3767153T3 (en) * 2019-07-16 2021-12-06 Oasis Eng Ltd FILLING NOZZLE FOR GASY OR DENSIFIED FUEL WITH RELATIONSHIP BETWEEN COUPLING AND ACTIVATION

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB755364A (en) * 1954-06-01 1956-08-22 Eldorado Ice Cream Company Ltd Improvements in or relating to packaging machinery
EP0039977A1 (en) * 1980-05-09 1981-11-18 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Loading device, especially for LPG
US4596278A (en) * 1985-05-06 1986-06-24 Husky Corporation Balanced, two-stage poppet valve for fuel dispensing nozzle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735364A (en) * 1953-03-30 1955-08-17 Avery Hardoll Ltd Improvements in or relating to liquid dispensing apparatus
AU1128570A (en) * 1969-02-11 1971-08-12 Emco Wheaton Inc Dispensing nozzle automatically closed by positive back pressure
US3805857A (en) * 1972-11-17 1974-04-23 Texaco Inc Vaporizable fuel transfer system and seal therefor
DE3313258A1 (en) * 1983-04-13 1984-10-18 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal QUICK RELEASE COUPLING

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB755364A (en) * 1954-06-01 1956-08-22 Eldorado Ice Cream Company Ltd Improvements in or relating to packaging machinery
EP0039977A1 (en) * 1980-05-09 1981-11-18 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Loading device, especially for LPG
US4596278A (en) * 1985-05-06 1986-06-24 Husky Corporation Balanced, two-stage poppet valve for fuel dispensing nozzle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU644187B2 (en) * 1990-07-05 1993-12-02 L G Equipment Pty Limited LPG filler valve receptacle
AU643377B2 (en) * 1991-04-18 1993-11-11 Gilbarco Aust Limited Nozzle locking device
AU671748B2 (en) * 1993-05-14 1996-09-05 L G Equipment Pty Limited Pressurized fluid dispensing nozzle
AU671766B2 (en) * 1993-07-16 1996-09-05 L G Equipment Pty Limited Fluid dispensing nozzle

Also Published As

Publication number Publication date
AU7919187A (en) 1988-03-24
WO1988001601A1 (en) 1988-03-10

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