US2816567A - Tank filling apparatus - Google Patents

Description

De@ 17, 1957 H. E. RlTTENHoUsE ET AL 2,816,567

TANK FILLING APPARATUS 3mm. i

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fizlljlf HTTORNEY Dec. 17,-1957 H. E. RITTENHoUsE ET AL 2,815,567

TANK FILLING APPARATUS Filed May 5 1950 4 Sheets-Sheet 2 H. E. RITTENHoUsE ETALl Dec. 17, 1957 TANK FILLING APPARATUS 4 Sheets-Sheet 3 ma kwa mou Filed May 5, 1950 m R 5 Y om .,m. NV T mm D navV w R A E .H s w Y u Q. 2N Sm. :u .3M EN Dec. 17, 1957 H. E. RITTENHOUSE ET AL 2,816,567 l TANK FILLING APPARATUS Filed May 5, 195o l 4 sheets-sheet 4 H3A 4 Ve HTTORNEY 2,816,567 Patented Dec. 17, 1957 TANK FILLING APPARATUS Howard E. Rittenhouse, Fort Wayne, and Sherwood Hinds, Columbia City, Ind., assignors of one-half to Tokheim Corporation, a corporation of Indiana, and one-hait to Bowser, Inc., Fort Wayne, 1nd., a corporation of Indiana Application May 5, 1950, Serial No. 160,266

14 Claims. (Cl. 137-393) This invention relates lto a tank filling apparatus. More specifically, it relates to a quick connection and tank iilling mechanism which enables a hose to be quickly attached to the lower portion of a tank for filling it. The apparatus will then automatically stop the iilling operation when a predetermined maximum level is attained in the tank so that the hose may be quickly detached from the tank.

The invention is particularly adapted for filling tank truck compartments. The present method of filling such tanks requires that the truck be spotted adjacent the loading rack and most racks are designed so that only two trucks at a time can be loaded.

Further the loading process is slow because the operator must climb onto the tank, open the compartments, stick them, position the discharge spouts, return to the loading rack and set the predetermined mechanisms on the meters and start the ow. When dispensing is complete, he again climbs onto the tank, removes the spouts, closes the compartments, climbs to the ground and into the truck so that he may drive it away. This is a time consuming process and also results in many injuries to the operators from falls, etc.

It is an object of the invention to eliminate the hazards to the operator by making it possible to fill the tank compartments without the operator leaving the ground.

Another object is to decrease the time lost in filling the compartments by eliminating the climbing, the opening, closing and sticking of the compartments.

Another object of the invention is to provide facilities in a single area which will make it unnecessary to spot the trucks in a particular position and which will accordingly make is possible to fuel many more trucks at the same time.

It is a further object to provide an apparatus which can also be used to empty the compartments.

A further object of the invention is to provide means which will prevent over-filling the compartments.

These and other objects will become apparent from a study of the specification and the drawings which are attached hereto and are made a part hereof and in which:

Figure 1 is a schematic sectional view showing the apparatus in the normal or inoperative position.

Figure 2 is a view similar to that of Figure l showing the parts in the tank illing condition.

Figure 3 is a view similar to Figures l and 2 but with the parts in the slow flow condition just prior to terminating the filling operation.

Figure 4 is a side elevation of the quick coupling connection with the hose connected.

Figure 5 is a sectional view of the nozzle latching and valve opening mechanism taken substantially on the line 5-5 of Figure 4.

Figure 6 is a sectional view taken substantially on the line 6 6 of Figure 4 showing the nozzle socket.

Loading and unloading controls Referring to Figures l to 3, the numerall represents a tank which has a bottom connection 3 serving'both as the inlet and outlet and which is connected with the conduit 5 leading from the body 7.

This body has a connection 9 which is joined to the quick coupler body 11 forming therewith a conduit or channel 13.

In the body 7, the primary valve chamber 15 communicates directly with the secondary valve chamber 17. The secondary valve 21 controls the flow of fluid under pressure to the passage 19 which communicates through the secondary venturi or vacuum producing means 25 and the primary venturi or vacuum producing means 27 with the outlet chamber 2.3. This chamber, in turn, comunicates by way of the passage 24 with the conduit 5.

Valve 21 is connected by stem 29 to a piston 31 movable in a cylinder 33. A spring 35 acts on the piston to hold the valve on its seat. The lower side of the piston is connected through a restricted port 36 to channel '75 and through a port 38 to chamber or passage 19, which is closed by a check valve 40. 'I'he lower side of the cylinder is connected by a conduit 37 with the valve chamber 39, in which a valve stem 41 reciprooates. The stem is urged downwardly by a spring 46 acting on a ange 48. The lower end of the stem is adapted to ride upon a ball valve 43 which controls a port 45 which opens into the chamber 17. A spring 47 urges the valve toward the seat.

The upper end of the valve stem is connected by a snitable lost motion connection to a lever 49 which is pivotally mounted at 51 on the body 7 which permits the lever to be depressed without moving the stem 41. A pin plate 43 is fixed to the body and is provided with an opening 55. A pin 57 is slidably mounted in the lever and a spring 59 urges the pin toward the plate. The lever has a finger 42 which engages a pin 44 on the stem of the valve 117 which projects through the body 7.

A secondary diaphragm chamber 61 is provided with a diaphragm 63 to which is attached a stem 65 which projects through the body 7. A spring 67 urges the stern outwardly. The diaphragm 63 carries a valve 64 which is adapted to close the passage or channel '75.

The chamber 61 is connected by conduit 69 to the throat of the secondary venturi 25. The chamber is also connected by a conduit 71 which passes through the top of. the tank and terminates in a probe having a relatively small orifice 73. The chamber is also connected by a channel or passage 75 to the chamber 33 ofthe secondary valve piston.

The primary valve 77 is mounted on a stem 79 slidable in boss 81 and opens into the chamber 15 to control the port S3. A spring 85 urges the valve toward the seat.

A cylinder 87 is disposed below the valve and a piston S9 is slidable therein. The tubular stem 91 of the piston is connected by means of a lost motion mechanism to the stem 79 of the primary valve. This connection comprises the tubular stem 91 fixed to v.the piston S9 which permits the valve stem 79 to move downwardly relative to the piston 89. A hook 93 engages a projection 95 so that when the piston moves down it will also move the stem to open the valve. A spring 97 urges the piston upwardly.

The upper side of the cylinder is connected with the channel 19 so that liquid under pressure is applied to force the cylinder down. The upper side of the cylinder is connected through a restricted port 99 to the Lower side of the cylinder which is also connected by a conduit 101 to the primary diaphragm chamber 103.

A diaphragm 105 is disposed across the chamber and supports a stem 107 which projects throughthe body 7. A spring 109 urges the stem outwardly. The diaphragm 105 carries a valve 106 which is adapted to close oit the conduits 101 and 111.

The chamber 103 is connected by a conduit 111 with the throat ot the primary venturi 27. Another conduit 1'13 connects this chamber with' the top of the tank, where it terminates 'in 'a'probe having'a 'restricted "orifice '115.

The orifice 115 is disposed at a lower level than orifice 73 so that it will be first reached by the liquid rising in the tank.

A second or restriction valve v117is slidably'mounted in a boss 119 andisurged toward `the `port 83 "by a spring y121.

Operation The operation of V-this portion -of .the device is as follows:

Assuming that `fluid .under pressure has been applled to the channel 13 and .chambers 15 and '17, the operator by raisingthe lever 49 for a -short time will free the ball valve 43 so that liquid under pressure in chamber 17 will 'lift valve-43 from port-45 and liquid under pressure `from .chamber 17 `will :ow through the port 45 and valve chamber 39.into conduit 37 tothe .under side of piston 31. This pistoni is raised against ythe pressure in chamber 17 and spring35 -so that liquid will flow into 4passage 19 .and through the venturi jets 25 and 27, chamber 23, passage 24, conduit and into tank 1. The lever V49 may 'be released and valve 43 closed as soon as the valve 21 is open.

The jet 27 relieves the pressure in conduit 111, chamber 103, the line-101 and the lower side of the piston 89 so that the liquid pressure in passage 19 applied to the upper side of the piston will depress the piston against the force of spring 97 and open the primary valve 77 against the pressure in chamber 15. This liquid under pressure then lifts valve 117 and liquid will flow directly to conduit 5 and the tank 1.

The pressure below the piston 31 is relieved through orifice 36 and duct`75 by the jet 25 by way of diaphragm chamber 61.

As the liquid fills the tank, liquid continues to ow through the jets which tend to create a vacuum in the diaphragm chambers 103 and 61, but are unsuccessful because gas .is supplied'to these chambers from the top of the tank through the probes 113 and 71, respectively.

However, when the liquid in thetank rises to the level that it covers the probe 113, the vacuum created by the primary jet is not satisfied `from the tank and the diaphragm 105 is drawn to the left and the conduits 101, 111 are closed. The pressure on 4the opposite sides of the piston 89 .becomes balanced .through the orifice 99 so that the spring :85 and .the'owofliquid will close the primary valve 77. lValve 117 will also be closed .by its spring 121. Flow of liquid to the tank continues, however, at a greatly reduced rate,fthrough the 'port of valve 21 and the jets until the .secondary probe 71 is covered with liquid.

The vacuum created by the secondaryjet then becomes effective to seat :the valve 64 so that conduit 75 is closed off andthe pressure above and `below the piston 31 is equalized through valve 40 from Lchannel`19. This permits spring 35 to close the valve .21. This stops all flow to the tank.

It will also be seenthat'the flowv can beistoppe'd manually by depressing the shaft or stem 65, should an emergency require. This closes valve 21, as described, and since the jets are stopped and pressure in conduit 19 is balanced across piston89, by the port99, the primary va'lve .will close.

The liquid may be drained fromthe tank by withdrawing the pin 57 in :lever 49, rotating the lever to the dotted line position-of Figure 2 and releasing the pin so that spring 59 will seat-itin the opening 55. The lever lifts pin .,441and valve 117 .so .that the liquid pressure will be applied'to the .valve A77.which:o,pens against the action of spring 85 and moves .relative to the piston due to the lost motion connection 93-.95 .described above.

When the required delivery has been made, pin 57 may be withdrawn and the handle tilted to the solid line position so .that spring 121 may close the valve 117 to 4 stop the flow. When the ow through the port is stopped, the spring'85 will return valve`77 to its seat.

Coupling 'and valves Since the tank is to be filled from the bottom, it is necessary to provide against loss of fluid should the valves just described fail to seat. Further, since the loading is accomplished from a hose which contains fluid under pressure, it is necessary to insure Ithat Ia fluid tight connection is made 'betweenthe hose and the body before either the valve at the v'tip of the .hose or that at the inlet to the body is opened.

Referring particularly Ito Figures 3 to 6, it will be seen that the 'hosei201 :is tted'witha tip, indicated generally by numeral 203, lprovided with an outletport 205 which is closed by a valve 207, thestem of which is slidable in boss 209. The spring 211 urges the valve to close the opening. The .portis :surrounded externally by an axial ange 213 which ,seats on a gasket 215 supported on the .body 217.

The exterior 4of .the tip has a sleeve 219 slidably mounted thereon and providedfwith radial flanges 221 and 223 extending respectively inwardly and outwardly. A spring 225 acts on flange 221 to ydraw'it to the left (Figure 3).

Referring particularly to Figures 1 'and 6, the body 217 is formed -With a recess 227 having a port 229 communicating with channel or conduit 13. This port is closed by an outwardly .opening valve 231 which has its stern 233 fixed in a bracket 235 which is slidably mounted on a rod 237. A spring 239, which normally surrounds the rod, bears on the bracket and holds the valve closed.

A cam shaft 241 is mounted in suitable bearings 243 in body 4217 (see Figure 5), passes through an elongated slot 245 in bracket 235 and carries a cam 247 which acts on a roll v249 .on the bracket to actuate the latter to open the valve 231.

A `tip locator 251 isfslidably mounted on the guide 253 of the body 217 and comprises a U-shaped channel 255 which is `open at the top for receiving the flange y223 of the tip.

The locator is guided yupon a rod 257 supported by the body 217 and is urged outwardly relative to the .body by a spring 259.

A pair of parallelfarmsf261 project past the body.217, one on each side thereofandeeach arm is provided with a -slot 263, `through which anend ofthe lcam shaft 241 projects. .A cam .265 .is fixed 4toeach end of the cam shaft and operates onza follower roll .267 carried by the corresponding arm 261 vto move the .locator relative to the guide 253 and body 217.

A .crank 269 is mounted on one .end of .the shaft to actuate it.

A latch Apawl ,271 is pivotally mounted onithe locator 251 at 273, has a notch v275 at the end which faces guide 253 and is urged to position the notch over the guide by aspring 277. .A cam nose 279 on the pawl projects through a lslot.281 in the locator in the path of the nozzle'tip so that whenthe tip is properly positioned in the locator, thelatchzpawl will bedepressed against the action `of its spring'to freethe latch from the guide.

Operation With the parts in the Figure 1 position, the nozzle tip is positioned with its flange 223 over the channel 255and moved to the lowermost position therein and pawl 271 is depressed to unlatched position. The crank 269 is then rotated in a counterclockwise direction to rotate the cams 247, 265.

Cams 265 first actuate rolls 267 and the'locator to the right (Figures l'to 4) "and draw'the 'ilange213 into sealing relation with 'the gasket 215. Any excess travel of the positioner after the flange is seated is absorbed by the spring 225.

VNear the end of the stroke of the crank, which is 'T5 approximately 330 degrees, the cam 247 actuates roll 249 to open valve 231 and this valve in turn forces valve 207 in the tip to its open position. The flow of liquid from hose 201 to channel 13 may start as soon as the valves are open.

After the filling operation has been completed, the crank 269 is rotated in a clockwise direction (Figure l) and the valves 231, 207 are first closed and thereafter the locator is moved outwardly to the Figure 1 position, whereupon the tip may be lifted from the channel.

It is impossible to open the valve 231 accidentally because the latch pawl 271 engages the guide 253 when the nozzle tip is not in the locator, to prevent rotation of the crank.

Multiple compartment tanks It is obvious that where the tank comprises a number of compartments, all of the compartments may be filled, individually through the usual manifold and directional valves by the single mechanism shown in Figures 1 to 6, but it will be necessary to provide means for selectively connecting the probes 71, 113 in each compartment to the diaphragm chambers 61, 103. This can be done by any known selector valve mechanism, by providing a valve manifold or by providing quick disconnect probe couplings at the chambers.

The probes may be made out of any suitable plastic tubing so that they will be flexible.

It is also possible to provide a series of valve bodies 7, all having their inlets 15 connected with the channel 13 from the quick connector and each having its outlet and probes connected with a particular tank compartment so that each compartment individually or all could be filled at once, each valve shutting off the fiow to its compartment when the latter is full.

Overhead #lling If desired, the valve mechanism comprising body 7 may be fiXedly installed on the usual loading rack instead of upon the truck.

In such case the quick coupler mechanism is eliminated and a connection is made directly to the supply pipe. The conduit is connected to the usual discharge spout.

The tank compartments are fitted with probes and a connection must be made from the probes to the diaphragm chambers. This system would operate in the same manner as described above.

It is obvious that various changes may be made in the form, structure and arrangement of parts without departing from the spirit of the invention. Accordingly, applicants do not desire to be limited to the specific embodiment disclosed herein primarily for purpose of illustration; but instead they desire protection falling fairly within the scope of the appended claims.

What we claim to be new and desire to protect by Letters Patent of the United States is:

l. In a liquid control system for a tank, the combination of a body having a first and a second conduit, a tank connected to the first conduit, a liquid line connected to the second conduit, a first and a second valve controlling communication between said conduits, means operable at will for opening the first valve, means under control ofthe first valve for opening the second valve, means responsive to a predetermined level in the tank for closing said second valve and additional means responsive to a different predetermined level in the tank for closing the rst valve.

2. In a liquid control system for a tank, the combination of a body having a first and a second conduit, a tank connected to the first conduit, a liquid line connected to the second conduit, a first and a second valve movable between open and closed positions for controlling communication between said conduits, manual means including first hydraulic means for opening said first valve, second hydraulicmeans under controlof said first valve i6 for opening said second valve, means responsive to a predetermined level in the tank for closing the second valve, means responsive to a different predetermined level for closing said first valve.

3. In a liquid control system for a tank, the combination of a body having a first and a second conduit, a tank connected to the first conduit, a liquid line connected to the second conduit, a first and a second valve controlling communication between said conduits, manual means including first hydraulic means for opening said first valve and holding it open, first and second vacuum producing means connected to be supplied with liquid by said first valve and each having a vacuum connection to a different predetermined level in the tank, second hydraulic means responsive to the opening of the first valve for opening Vthe second valve and holding it open, means operable .',by said first vacuum producing means, in response to the closure of its vacuum connection with liquid, for disabling the holding means for said second valve, means for closing said second valve to reduce the flow of liquid when it has reached a predetermined level in the tank, additional means operable by said second vacuum producing means, in response to closure of its vacuum connection with liquid, for disabling the holding means for said first valve, and means for closing said first valve to stop the flow.

4. In a liquid control system for a tank, the combination of a body having a first and a second conduit, a tank connected to the first conduit, a liquid line connected to the second conduit, a valve controlling communication between said conduits, manual means including hydraulic means for opening the valve and holding it open, a

vacuum producing means connected to be supplied with liquid from the valve and having a vacuum connection to a predetermined level in said tank, means operable by said vacuum producing means in response to closure of said vacuum connection by liquid, for closing said valve.

5. In a liquid control system for a tank, the combination of a body having a first and a second conduit, a tank connected to the first conduit, a liquid line connected to the second conduit, a first and a second valve controlling communication between said conduits, manual means including first hydraulic means for opening said first valve and holding it open, first and second vacuum producing means connected to be supplied with liquid by said first valve and each having a vacuum connection to a different predetermined level in the tank, seco-nd hydraulic means responsive to the opening of the rst valve for opening the second valve and holding it open, means operable by said first vacuum producing means in response to the closure of its vacuum connection with liquid for disabling the holding means for said second valve and additional means operable by said second vacuum producing means in response to closure of its vacuum connection with liquid for disabling the holding means for said first valve. 6. ln a liquid control system for a tank, the combination of a body having a first and a second conduit, a tank connected to the first conduit, a liquid line connected to the second conduit, a first valve controlling communication between said conduits, manual means including hydraulic means for opening said valve, a flow responsive valve opposed to said first valve, said first valve having a lost motion connection with said hydraulic means, and lost motion means connecting said flow responsive valve with said manual means for opening thereby, so that the direction of flow through said conduits may be reversed. 7. In a liquid control device, the combination of a body having a first and a second conduit, a valve port therebetween, a poppet type valve on either side of said port, mounted for movement toward and away from the port, yieldable means for urging each valve toward the port, operating means connected to each valve for opening it at will, said means including a lost motion means so '37 thatfeach =valve umay fopen independentlynof 'f thef operating means.

`8. In alli'quid .control system for atankgtheycombination of a body having a first andia second conduit,1'aitank connected Lto the first'conduit, :a liquidline.connectedto the second :conduit, a valve `controllingcommunication betweensaid conduits,..a pressurexresponsive member connectedto actuate the valve, means underfmanual control for applyingfiuid from one of said conduits to 'oneside of the member to open -the rvalve, Ia .restricted channel connectingthe opposite sides of the rmember, vacuum producing'means `operable inresponselto the openingzof said '.valve, a vacuum responsive device :connecteditosaid vacuum lproducing means and 4to the other sidefof'said member, a .control conduit connecting said device with the tank, and meanszoperableby said-device in response to `closure of said .control conduit'by :liquidgfor closing said valve by closing the connection ybetween'said other side fof said ymember 'and 'the'ivacuum producing means.

A9. 'In a liquid control system for a Ltank, the combination of abody having a first'andasecond conduit, a tank connected to the tir-st conduit, aliquid line connected to the-second conduit, afirst and-asecondfvalve controlling communication between said conduits, Ia first ypressure responsive member connected'to actuate -the first valve, manual means for applying fluid from one conduit to one side of said `member `to open the valve, `a Lsecond pressure responsive member connected to 'actuate the second r-valve, means responsive -to opening of the first valve for applying fluid "from said conduit to one side of said second member, restricted Vchannels connecting 'the opposite sides of each member, first and second vacuum producing means operable in response to-opening of said first valve, first and second vacuum responsive devices connected to said vacuum producing means respectively, a channel connecting the other side of Veachy of-said members with its corresponding vacuum producing device, a 'control -valve operable by the corresponding device for closing the corresponding channel, and means connecting each device with the tank at a different 'level therein, said devicesserving to close said control valves in predetermined order as said liquid llevel reaches'said predetermined levels.

10.1In a liquid control system for a tank, the'combination of 'a lbody having a rst anda second conduit, a Vtank connected to the "first conduit, a liquid line `connected to the second conduit, a valve -controlling lcornmunication between said'conduits, a pressure vresponsive member connected to actuate the valve, means under manual control for applying fiuid from one of said 'conduits to one side of the member to open the valve, a restricted channel connecting the opposite sides o'f the member, a passage under control of said valve 'for 'admittingliquid tosaid side of said member, a checkvalve in said passage, vacuum producing means operable in response to the opening of said valve, a vacuum responsive device connected to said vacuum yproducing means `and tothe other side of' said member, a control conduit connecting-said device with the tank, and means operable by said device in'accordance with a predetermined liquid level vin the tank for closing said valve by `closing Athe connection between said other side of said member and the vacuum producing means.

11. In a liquid control system for a tank, the combination of a body having a first and a second conduit, a ltank connected'to the first conduit, a liquid line connected tothe second conduit, a Vvalve controlling communication between said conduits, a pressure responsive memberconnected to actuate thevalve, means forapplying fluid from one conduit to oneside of the member to open `the valve, a vacuum producing unit, a channel connecting 'the rother side of said member `with "said unit, avacuum responsive device connected to said unit, a control valve operablerby sai'd device for controlling said passage, VIra-conduit `connecting vsaid vunit and device with fsaid tankatrafpredetermined level, whereby said controlivalvetwill'rbe closed whenv said connecting conduit is Iclosed lby :liquid in the tank, and means for substantially balancing the pressure across said member and for closing said 1valve, .when -said control valve is closed.

12. In azliquid'rcontrol lsystem for a tank, the combination'of'abodyrhavingtafirst and a second conduit, a tank connected'to'fthe first conduit, a liquid line connected to the second ifconduit, a valve controlling communication between `said conduits, a pressure responsive member connected to'actuate the valve, means for applying fiuid from onelconduitfto one sideof the member to open the valve, a vacuum producing unit, a channel connecting the other side of said member with said unit, a vacuum responsive device connected to said unit, a control valve operableby 'said device 'for controlling said passage, a third conduit connecting said unit and device with said tank'ata predetermined level, whereby said control'valve will'be closed when said third conduit is closed by liquid inthe vtank, and means for substantially balancing the pressure across/said member and on closing said valve, when said 'control valve is closed, a second valve controlling 'communication between said conduits, asecond pressure'responsivemember connected to actuate said second valve, means under control of said first valve for applying liquid from said oneconduit to said second member to open the second valve, a second vacuum producing unit, a second vacuum responsive device connected to the unit and Ato the .other side of the second member, a second vchannel connectingthe other side of the second member'and said'second unit, and a second control valve for'said channel, a .'fourthconduit connecting said second device and unit with the tank at a second predetermined level, whereby said control valve will be closed when said fourth conduit is closedby liquid in the tank, and means for substantially balancing the pressure across said second member and'for'closing said valve when said second controlvalve is closed.

13. The structure in accordance with claim 12, wherein said third and lfourth conduits are disposed at such predetermined'levels in said tank that said third conduit is first affected by the liquid so that said second valve will be first closed and thereafter said .first named valve will be closed.

14. "In a liquid control systemffor a tank, the combination of a body having a first and a second conduit, atank connected 'to .the ifirst conduit, a liquid line connected `to the second conduit, a first and-a second valvecontrolling communication between said conduits, manual means including firsthydraiilic means for opening said first valve an'd holding `t open, vacuum producing means connected tobe supplied with liquid by said first valve, second hydraulicmeans responsive to the opening of said first valve for opening the second valve :and holding it open, first and second actuable vacuum responsive means each connected with said vacuumLproducing means and with said first and second'hydraulic means respectively, a control conduit connecting each vacuum responsive means with said tank at a different predetermined level therein, said conduit, when open, serving to supply gas to said vacuum responsive meansto render said vacuum producing means ineffective to actuate them, but when closed by liquid, serving to render said vacuum producing means effective to actuate the corresponding vacuum responsive means, and means responsive to actuation of a vacuum responsive meansforclosing `the corresponding valve.

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