US1968141A - Liquid petroleum gas distributing system - Google Patents

Description

July 31, 1934. J. B. GREEN LIQUID PETROLEUM GAS DISTRIBUTING SYSTEM Filed April 24 1933 2 Sheets-Sheet l Invenlor flllorney July31,1934. V J,B,GREE- v 1,968,141

LIQUID PETROLEUM GAS DISTRIBUTING SYSTEM Filed April 24. 1953 2 Sheets-Sheet 2 1 J v E {1 I 1Ivenzm f1 llomey Patented July 31, 1934 UNITED STATES PATENT OFFICE LIQUID PETROLEUM GAS DISTRIBUTING SYSTEM 1 Claim.

This invention relates to a method of and means for distributing liquid petroleum gases, such as propane, the general object of the invention being .to provide means whereby the liquid can be delivered from one tank to another without the use of pumps and other mechanicalmeans. I This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:- i

Figure 1 is a diagrammatic view showing how the invention is carried out.

Figure 2 is a view partly in section and partly in elevation, showing the receiving or storage tank and the pipes for connecting the same with the delivery tank.

Figure 3 is a detail sectional view showing how a faucet on a pipe on the delivery tank is connected to a valve of a pipe leading to the storage tank.

In these drawings, the numeral 1 indicates the receiving or storage tank for supplying stoves or other heating units of a building A with gas. A portion of the pipe line leading from the tank into the building is shown at 2 and contains the valve 3 and the pressure regulator 4. This tank is also supplied with a gauge, the tube through which a part ofthe gauge passes being shown at 5 and the float at 6. Figures 1 and 2 show the storage tank located underground and these figures also show a pipe 7 passing from a point adjacent the bottom of the tank through the tankto a point above the ground where the upper end of the pipe is connected to a shut-off valve 8. A second pipe 9 has its lower end in communication with the top of the tank and its upper end is connected to a shut-off valve 10.

The supply tank is shown at 11 and Figure 1 shows this tank as carried by a truck 12. This tank 11 has a short pipe 12' leading from bottom part and a short pipe 13 leading from its top part, these pipes being connected with the valves 14 and 15. Flexible hose 16 and 17 lead from these valves 14 and 15 and have the faucets 18 and 19 connected to their lower ends. These faucets are each formed with a flange 20 at its lower end which is beveled to engage a beveled seat atthe upper end of a valve 8 or 10, as shown in Figure 3, a collar 21 being threaded to' the upper end of the valve and engaging the flange for fastening the faucet to the valve, as also shown in Figure 3.

Thus when the storage tank is to be refilled from the supply tank, it is simply necessary to make the connections between the faucets 18 and 19 and the valves 8 and 10, after which the valves 10, 19 and 15 are opened to permit the pressure above the liquid levels in the twqtanks to equalize and then the valves 14, 18 and8 are opened so that the liquid in the tank 11 will flow into the tank 1 and the air and gases replaced by the liquid flowing into the tank lwill flow into the upper part of the tank 11 and thus replace the liquid flowlngfrom said tank 11.

Attention is called to the fact that the pipe 7 extends below the liquid level in the tank 1 so 'that the inflowing liquid from the/tank 11 flows into the liquid in the tank l, so that'the inflowing liquid is not vaporized as'it would be if delivered into "the tank 1 above the liquid level and if the liquid was delivered to the tank 1 above the liquid level, there would be danger of freezing or stopping of the inlet at the tank 1.

Thus the invention eliminates the use of pumps and the like for forcing the liquid from the supply tank into the storage tank and this invention makes it possible to refill the storage tanks on premises of users very easily and quickly and at a greatly reduced cost to the consumer of this type of fuel.

t is thought from the foregoing description that the advantages and novel features of the invention will be readily'apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is:-

A gravity distributing system for volatile liquids comprising a storage tank and a portable elevated delivery tank, a pipe having its lower and connected with the top of the storage tank, a valve at the upper end of said pipe, a second pipe passing through the top of the storage tank to a point adjacent the bottom thereof, a valve at the upper end of said second pipe, a pair of short pipes, containing valves, one connected to the bottom of the delivery tank and the other to the top thereof above the liquid level therein, a hose connected to each short pipe, a faucet connected to the free end of eachhose and means for detachably connecting each faucet to a first mentioned valve.

JAMES B. GREEN.

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