US3092153A

US3092153A - Vented fill nozzle and adapter therefor

Info

Publication number: US3092153A
Application number: US19935A
Authority: US
Inventors: Ludwig T Stoyke
Original assignee: Lear Siegler Inc
Current assignee: Lear Siegler Inc
Priority date: 1960-04-04
Filing date: 1960-04-04
Publication date: 1963-06-04
Anticipated expiration: 1980-06-04

Description

June 4, 1963 T. sToYKE 3,092,153

VENTED FILL NOZZLE AND ADAPTER THEREFOR Filed April 4, 1960 2 sheets-sheer 1 lo 2E! 342756 :i Il l 52 36 l2 12u 38 5f? Q 2| mbz??2 Q g 2O 73 Q 3l 43 Q ee Q 30 42 28 60 23 67 B4 I4 e4 Q ||hl1n|.||,||,.\ /90 S @y 92 w@ |6 E 7o i@ eo |0 b ma? W l l 93 FIG. I

INVENTOR.

LUDWIG T. STOYKE BY ATTORNEY June 4, 1963 L. T. sToYKE 3,092,153

VENTED FILL NOZZLE AND ADAPTER THEREFOR Filed April 4, 1960 2 Sheets-Sheet 2 FIG. 2

INVENTOR.

LUDWIG T. STOYK E ATTORN EY United Smtes Patent y, 3,092,153 Patented June 4, 1963 3,092,153 VENTED FILL NOZZLE AND ADAPTER THEllllFOR b s Ludwig T. Stoyke Elyria io assignor y mesne a signments, to Lear, Siegler Inc., Santa lVIonica, Calif.,

a corporation of Delaware Filed Apr. 4, 1960, Ser. No. 19,935 5 Claims. (Cl. 141-302) which contain toxic material are filled from the bottom.

and vented from the top. The tank cannot be vented to the atmosphere because of danger to handling personnel.

The device contemplated by this invention overcomes the necessity for additional tank connections by utilizing the iill nozzle to both ill and vent the tank being filled.

It is, therefore, an object of this invention to provide a vented till nozzle and tank adapter.

It is another object of this invention to provide a vented iill nozzle `and tank Vadapter which is particularly useful in filling tanks which contain toxic materials.

Other objects will become apparent from the following description when taken in connection with the accompanying drawings in which:

FIG. l is a view, partially in section, of a typical fill nozzle in accordance with this invention, with the nozzle in its closed position; and

FIG. 2 is a View, partially in section, of the nozzle of FIG. l in its opened position.

In the figures, liquid conduit and fume vent conduit 12 are connected through nipple 24 of nozzlebody 11 and adapter 28 to the interior of a tank 14 which is to be filled. Nipple 24 and adapter 28 are connected together upon engagement by some means such as a plurality of hooked arms 73 and llange 40 to prevent disengagement during ow. It is, of course, understood that equivalent means could be utilized.

Valve stem 48 is adapted to open nipple 24 and adapter 28 to allow ow of iluid into tank 14 and to allow fumes to escape therefrom.

When adapter 28 is positioned in the top of a tank, vent conduit 12 is connected with the interior of tank 14 immediately adjacent adapter 28. When, however, it is desired to till the tank from the bottom and to vent it from the top, means forming a fume chamber 16 must be provided and a separate conduit 18 connected between adapter 28 and the fume space within tank 14. Means forming chamber 16 acts as a liquid barrier to prevent liquid return through fume conduit 12 while conduit 18 connects chamber 16 with the fume space of tank 14.

Nipple 24 has an external thimble 20 which -is substantially circularly symmetrical about the axis of valve stem 48. Radially interior of thimble 20 is va second thimble 22 which is spaced apart from thimble 20 by slotted

spacing members

21 and 23. Thimble 22 is substantially circularly symmetrical about the axis of valve stem 48 and forms with thimble 20 a fume chamber 12b or conduit which is connected to fume conduit 12 at 12a.

Thimbles

20 and 22 are rigidly connected together and hence do not move relative to each other.

Hollow Valve stem guide 26 is substantially circularly symmetrical about the axis of valve stem 48 and is slidable along the interior of thimble 22. Shoulder 30 slides onsurface 31 of member 26 and also acts to retain spring 32 and seals 36. The seals 36 are bias-ed in a downward direction when in the closed position illustrated in FIG. 1. When the open position illustrated in FIG. 2 is attained, the seals 36 are biased upward by coil spring 32 acting through collar 27 and ring 38 against the stationary stop 34. Member 26 has a radially outward extending flange 42 which slidingly engages llange 43 of thimble `20 when the valve is in its closed position as shown in FIG. 1. A washer 46 is held on flange 42 by means of a lock nut 47. Washer 46 .together with gasket ring 50 seals thev joint between

flange

42 and 43 when the valve is in its closed position as shown in FIG. 1.

The interior chamber 52 of slidable member 26 contains a radially inwardly extending web 54 which forms a centrally positioned collar S5 which is adapted to slidably engage valve stem 48 for free axial sliding.

Collar 56 is fixed to valve stern 48 and is adapted to engage collar 55 to force member 26 downward, as shown in FIG. 2.

Stem head 58 is attached to the lower end of valve stem 48 and may be of resilient material or may be slightly swiveled to allow gasket 60 to engage the inner surface of member 26. Gasket 60 is preferably of resilient material which does not chemically react with the fluid which is being handled and which conforms to the contour of its- 11 into engagement with adapter 28 when fluid is flowing, i'

as shown in FIG. 2. Member 62 of adapter 28 is connected to tank 14 and has its inner surface contoured to` receive nipple 20. Member 64 is substantially symmetrical about the axis of valve stem 48 and is sealed therefrom by chevron seals 66 which mate withthe inner surface of member 62 and exterior surface' 24. To allow for the passage of vapor when the valve is opened, clearance is maintained between the inner surface of member 64 and the outer periphery of washer 46, as shown atk 12C of FIG. 2.

A sliding vent valve seat 68 is `attached to ll valve poppet guide 70 which is biased into an upward position by spring 72 to cause a seal between shoulder 74 and' washer 76 when the valve is closed.

A poppet valve seat 78 and a poppet valve body 80 slides on the inner periphery of member 70v and isbiased into its closed position by means of spring 82 to cause shoulder 84 and washer 86 to engage to create a fluid seal when the Valve is in its closed position, as shown in FIG. 1.

Member 64 forms an annular vapor chamber 88 which is 4connected through a plurality of conduits, such `as conduits and 92 to a vapor space 94 which is connected to the Vapor space within tank 14 by means of conduit 18'. If adapter 28 is set in the top of the tank, fluid barrier 16 and conduit 18 are removed and

conduits

90 and 92 are connected directly to the interior of tank 14 immediately adjacent the wall thereof. v

In operation, nozzle 11 and adapter 28 move from their closed position, as shown in FIG. l, into their openk under pressure to move through conduit 10, thence through the interior of member 26 adjacent valve stem 48 into the chamber 10a immediately above the closed poppet valve 78.

As valve stem 48 progresses downward, it also engages poppet valve seat 78 to force seat 78 downward against the bias of spring 82 to thereby open the seal between shoulder 84 and washer 86. As valve stem 48 progresses further downward, poppet valve body 80 clears the inner surface of member 70 to cause fluid to flow downward into the void b adjacent spring 82, thence through orifice 93 into tank 14.

Collar 56 attached to valve stern 48 engages collar 55 as valve stem 48 moves downward. As valve stem 48 moves further downward, member 26 is pushed downward to thereby open the vent space between

nipples

20 and 22 into the chamber 12e. As member 26 and washer 46 move downward, they engage vent valve seat 68. As member 46 moves further downward, it forces vent valve seat 68 against the urge of spring 72 to thereby cause shoulder 74 and washer 76 to disengage and to connect the annular vent space 88 with the vent space 12C. The coincidence of washer 46 with the top of member 68 effectively seals the liquid space and conduits from the vent conduits to allow free flow of vapors in the vent conduits.

When the valve is fully opened then, the vapor return path is from the vent space inside of tank 14, through conduit 18 into vapor space 94, thence through

conduits

90 and 92 into vent space 88, thence upward into vent spaces 12e and 12b.

The flow of fluid into tank 14 is from conduit 10 into conduit 10a, around valve 58 and valve body 80, into chamber 10b, thence into tank 14.

Thus, a vented liquid fill nozzle is presented which is particularly useful in filling tanks with fluids that have toxic vapor.

Although the invention has been described in detail, it is not intended that the invention should be limited by the above specification but only in accord with the spirit and scope of the following claims.

I claim:

1. A vented liquid fill nozzle comprising: means forming a liquid conduit; means forming a fume conduit; first valve means including a valve stem adapted to move along the axis of said liquid conduit and to close the end of said liquid conduit when said stem is in one extreme position; a slidable member including a web and a sleeve centrally located in said first conduit and slidingly engaging said valve stem, said slidable member defining the exterior portion of said first conduit; means attached `to said valve stem adapted to mechanically engage said slidable member to cause said slidable member to move axially with said valve stem; said second conduit means being defined by a pair of coaxial thimbles closed at one end by said slidable member and adapted to be opened when said slidable member moves axially.

2. A liquid iill nozzle as recited in claim 1 in combination with a fuel tank and a nozzle adapter attached thereto, said nozzle adapter being contoured to receive the outer one of said thimbles, and to receive the end of said slidable member and said valve stem; said adapter having a pair of poppet valves, each said poppet valve being spring-biased into its closed position and adapted to engage said nozzle to be opened by the opening of said first and second conduits in said nozzle; third and fourth conduits in said adapter, said third conduit connecting through said first poppet valve to said first conduit, said fourth conduit connecting through said second poppet valve to said second conduit; said third conduit connecting with the interior of said tank and said fourth conduit connecting to the fume space within said tank.

3. A vented nozzle and adapter comprising: first and second substantially concentric conduits within said nozzle; third and fourth substantially concentric conduits within said adapter, the interior geometry of said adapter engaging the exterior geometry of said nozzle; first valve means connected between said first and third conduits; second valve means separately biased with respect to said first valve means connected between said second and fourth conduits; said first and third conduits connecting between a liquid supply and the interior of a tank; said second and fourth conduits connecting between the fume space of a filling tank and the fume space of a receiving tank; and a valve stem-equipped with mechanical means for sequentially operating said first and said second valve means 4. A ven-ted liquid fill nozzle comprising: a valve stem; a first thimble substantially circularly symmetrical about the axis of said valve stem; a second thimble radially interior of said first thimble, substantially circularly symmetrical about the axis of said valve stem, and spaced apart from said first thimble by at least one spacing member to form a fume conduit; a hollow valve stem, substantially circularly symmetrical about the axis of said first mentioned valve stem and slidablel along the interior of said second thimble to form a liquid conduit; a radially outward extending flange and a seal on the outer end of said hollow stem and a radially inward extending flange on said first thimble, positioned to close said fume conduit when said 'hollow stern is in one extreme position of sliding movement; a stem head attached to the outer end of said first valve stem, positioned to close said liquid conduit when said first mentioned valve stem is in one extreme position of sliding movement; and a collar attached to said first mentioned valve stem and positioned to engage said hollow valve stern to cause said liquid and fume conduits to open and close together.

5. A vented tank adapter for a nozzle comprising (i) a housing having a fume conduit and an internal first annular valve seating means;

(i-i) a first cylindrical poppet valve member slidably mounted within said housing adapted to conduct uid therethrough and having a first annular valve seat engaging means adapted to engage said first annular valve seating means to constitute a closed first valve position to prevent escape of fumes from said tank;

(iii) a vfirst spring means cooperating with said housing and biasing said first poppet valve member into a closed valve position;

(iv) a second annular valve seating means on the internal surface of lsaid first cylindrical poppet valve member;

(v) a second poppet valve member slideably mounted within said first cylindrical poppet valve member and having a second annular valve seat engaging means adapted to engage said second annular valve seating means to constitute a closed second valve position, and thereby prevent the flow of fluid through said first cylindrical poppet `valve member;

(vi) a second spring means cooperating with said housing and biasing said second poppet valve member into a closed valve position;

(vii) a third annular valve seat engaging means concentric with said first annular valve seat engaging means and fixedly mounted on said first cylindrical poppet valve member, said third annular valve seat engaging means being adapted to contact a valve seat on said nozzle.

Sarniran Aug. 18, 1953 Klamm et al May 3l, 1960 Einf.

Claims

1. A VENTED LIQUID FILL NOZZLE COMPRISING: MEANS FROMING A LIQUID CONDUIT; MEANS FORMING A FUME CONDUIT; FIRST VALVE MEANS INCLUDING A VALVE STEM ADAPTED TO MOVE ALONG THE AXIS OF SAID LIQUID CONDUIT AND TO CLOSE THE END OF SAID LIQUID CONDUIT WHEN SAID STEM IS IN ONE EXTREME POSITION; A SLIDABLE MEMBER INCLUDING A WEB AND A SLEEVE CENTRALLY LOCATED IN SAID FIRST CONDUIT AND SLIDINGLY ENGAGING SAID VALVE STEM, SAID SLIDABLE MEMBER DEFINING THE EXTERIOR PORTION OF SAID FIRST CONDUIT; MEANS ATTACHED TO SAID VALVE STEM ADAPTED TO MECHANICALLY EN-