US2126880A - Pumping apparatus - Google Patents

Description

Aug. 16, 1938. E. F. GARDNER PUMPING APPARATUS Filed Jan. 25, 1937 4 Shee'ts-Sheet l orneus Aug. 16, 1938. E. F. GARDNER 2,126,830

` PUMPING APPARATUS Filed Jan. 25, 1937 `"-1 Sheets-Sheet 2 l A torneus Aug. 16, 1938. E. F. GARDNER PUMPING APPARATUS Filed Jan. 25, 1937 4 Sheets-Sheet 5 nvenor Za-7.5072 Gard/7a er Aug. 16, 1938. E. F. GARDNER PUMPING APPARATUS Filed Jan. 25, 1937 4 Sheets-Sheet 4 Inventor Eds@ :I Hummm Patented Aug. 16, 1938 UNITED STATES PATENT OFFICE 2,126,880 PUMSPING APPARATUS Edson F. Gardner, Covington Township, Lackawnna County. Pa.

Application January 25, 1937, Serial 6 Claims.

This invention appertains to new and useful improvements in pumping apparatus and more particularly to apparatus for pumping iluid from Wells.

The principal object of the present invention is to provide a pumping apparatus whereby liquid sion to expand a collection chamber and then subsequently releasing the pressure from the r liquid column and allowing displacement of the collected volume.

Another important to distribute the object of the invention is pumping load over both halves o cycle; i. e., in the one-half of and well assemblies.

Figure 2 is an end pump.

Figure 3 is an enlarged vertical sectional view through the pump.

Figure 4 is a vertical sectional view through the well assembly.

Figure 5 is a cross sectional view on theline .0 5-5 of Figure 4.

Figure 6 is a cross sectional view on the line 6 6 of Figure 4.

Figure '7 is a side elevational view of the movable cylinder. 5 Figure 8 is a 8 8 of Figure 7 Figure 9 is a top plan view head shown in Figure 2.

Figure 10 is a side elevational view of the i cylinder head shown in Figure 9.

Figure 11 is a perspective view of one of the valve elements shown in Figure 4.

Figure 12 is a side elevational view of the piston shell shown in Figure 4 with a part broken away.

elevational view of the of the cylinder cross sectional view on the line.

No. 122,240 (Cl. 103-44) Figure 13 is a sectional view on the line |3|3 of Figure 1.

Referring to the drawings wherein like numerals designate like parts, it can drainage and ventilation.

Extending downwardly from the core |5 is the eduction pipe 2| connecting with the well assembly 1.

Referring to Figure 3, it can be seen that the pump 6 consists of the shell 22 having the head 23 at one end secured to the shell by manecting rod 30 for the cylinder 21 extends through the head 29 and threads into the collar 3|. A cushion annulus 32 is provided between the head 29 and the collar 3| while a coiled compressible spring 33 is interposed between the collar 3| and the head 28.

I'he head 28 perhead the clamp ring 36 between which and the head 33 a packing gland 31 is clamped and disposed A seating ring 39 is threaded into the clamp ring 36 and has the pin 40 extending inwardly therefrom with the check valve 4| thereon as well as the spring means 42 for normally maintaining the said valve 4| in seated position. The elbow 43 depends from the bottom of the shell 22 and is internally threaded for receiving the adjacent end of the pipe line I9.

Upstanding from the top portion of the shell 22 is the barrel 44 flanged at its upper end as at 45 for supporting the flanged end 46 of the bonnet structure 41. A diaphragm 48 is clamped between the flanges 46-45 and traverses the interior of the barrel 44 and bonnet 41 as shown in Figure 3. A cup member 49 rests upon the diaphragm 48 and a coiled compressible spring 50 is interposed between this cup and the top of the bonnet 41. Obviously in place of a diaphragm a piston or some other suitable means can be adopted. A second cup structure bears against the underside of the diaphragm 48 and a coiled compressible spring 52 is interposed between this cup 5| and the valve element 53 which normally engages the removable seat 54. The usual receiving tank (not shown) has a pipe line connection to the neck 55.

In some instances where it may be desirable that the pump shown in Figure 3 be employed for pumping air to the tank, a check valve 56 is mounted on the head 23. When the pump is used for pumping liquid, the air intake 51 is sealed. However, when it is desired that air be compressed, the air intake is opened and operation of the cylinder 21 will cause air to be drawn into the shell 22 and forced into the space 58 and subsequently pass the valve 5 2 to the tank collecting the same.

Now referring to Figure 4, (the internal well assembly) it can be seen that this assembly consists of the shell 59 internally threaded at its lower end to receive the upper externally threaded portion of the cup-like structure 68 which has the liquid receiving opening 6| in the lower end thereof.

The upper end portion of the shell 59 is internally threaded to receive the externally threaded ring 62 and the enlarged externally threaded lower portion 63 of the bonnet structure 64. A clamp ring 65 is provided on the externally threaded enlarged portion 63. This ring 65 bears against the upper edge of the shell 59 and acts as locking means.

The ring 62 acts as a clamp ring for theV packing gland 66 which wipes against the cylinder 61. The ring 62 is also provided with a depending apron 68 spaced from the cylinder 61 and this serves as an abutment for the piston unit generally referred to by numeral 69. This piston unit consists of the shell having the outwardly disposed circumferentally extending iiange 1| and the pair of annular members 12-13 thereon. Interposed between the annular member 13 and the member 12 is the packing gland 14 and also a second packing gland is interposed between f the flange 1| and the annulus 12. The cylinder 18 of the piston 69 is externally threaded to engage through the annulus 13 and into the internally threaded lower portion of the cylinder 61. A head 16 is threaded into the upper end of the piston cylinder 18' and has opening 11 therein over which the check valve 18 is engageable.

The lower portion of the cylinder `61 adjacent the valve 18 is provided with ports 19. Furthermore, a stem 88 rises from the head 16 and has the valve 18 thereon as well as the coiled compresslble spring 9| for normally urging the valve 18 against the head 16 and over the opening 11. The upper end of the cylinder 61 is provided with the head 82 having openings 83 therein normally closed by the valve 84. A stem 85 rises from the head 82 and has the valve 84 thereon and normally urged downwardly against the head 82 and over the openings 83 by the spring 86.

As can be seen in Figure 4, a strong compressible coiled spring 81 is interposed between the flanged lower end of the piston 69 and the bottom of the cup-like section 60.

It can now be seen, that when the cylinder 21 of the pump 6 in Figure 3 is moved toward thc right the column of iiuid in the pipe |8-2| is placed under pressure and this forces the cylinder 61 and piston 69 downwardly in the shell 69 vagainst the tension of the spring 81. As this assembly moves downwardly, the valve 18 will open and allow liquid to ll the cylinder 61 as weil as the increased space 88 between the shell 59 and the cylinder 61. The cylinder 21 is now moved toward the left in Figure 3 which releases the pressure on the column of fluid, permitting the spring 81 to exert its tension which drives the piston 69 upwardly displacing the liquid from the space 88 into the cylinder 61 through ports 19 and in view of the fact that it cannot leave the cylinder 61 by way of the valve 18, it must pass upwardly through the ports 83. This fluid is then in the shell 22 in advance of the superhead 33 of the cylinder 21. By now reversing the direction of the cylinder 21 so that the cylinder 21 is moving toward the right, the trapped liquid is put under compression so that the valve 4| opens and allows a portion of the liquid to pass into the superhead 33 and out through the ports 34 to the space 58. Due to the pressure above the valve 53, this liquid cannot at this time pass valve 53. The remaining portion of the liquid is forced into shell 59 as heretoforedescribed. The next movement toward the left by the piston 21 will drive the fluid from the space 58 pass the valve 53 to the pipe line from the neck 55 (not shown).

The diaphragm 48 and springs 58-52 serve as a dierential assembly in conjunction with the valve 53. The same serving to maintain a suiiicient andpractically constant pressure on the valve 53 regardless of the hydraulic pressure in neck 55 so that when the cylinder 21 is moved toward the right all of the pressure generated thereby will be communicated to the cylinder assembly denoted by reference character 1.

It can now be seen that the spring 33 interposed betweeen the shoulder 3| and the head 28 provides a novel means of taking up the shock of temporary excessive pressure and restoring this energy when the shock period has passed. Under normal operating pressures there is no movement of connecting rod 38 through the head 29, but when an abnormal pressure such as a water hammer is encountered against the head 28, the plunger 21 is forced outwardly along the connecting rod4 30 against the spring 33. When the excess pressure is removed, the spring 33 returns plunger 21 to its normal position.

It is preferable that the valve seats 39 and 54 each have a small bleeder slot therein to provide for priming of pipes I9 and 2|. p

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes inthe shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new isz- 1. In combination, a pump, a well liquid eduction pipe, a connection between the pump and the upper portion of the eduction pipe, and means at the lower end of the eduction pipe responsive to pressure on the liquid column in the eduction pipe by the pump for trapping and lifting liquid through the eduction pipe, a pipe leading to the pump, a union between the upper end of the eduction pipe and the last mentioned pipe, said union consisting of a body adapted to be disposed over the top of the usual well casing, a downwardly tapering pocket in the said body, a hollow core disposed into the pocket, said body and core having registering ports with which the pipe from the pump can communicate, and means for urging the core snugly into the said pocket of the body.

2. In combination, a pump, a well liquid eduction pipe, a connection between the. pump and the upper portion of the eduction pipe, and means at the lower end of the eduction pipe responsive to pressure on the liquid column in the eduction pipe by the pump for trapping and lifting liquid through the eduction pipe, a pipe leading to the pump, a union between the upper end of the eduction pipe and the last-mentioned pipe, said union consisting of a body adapted to be disposed over the top of the usual well casing, a downwardly tapering pocket in the said body, a hollow core disposed into the pocket, said body and core having registering ports with which the pipe from the pump can communicate, and means for urging the core snugly into the said pocket of the body, and a bonnet structure for the body and a threaded stem extending upwardly from the core and through the upper portion of the bonnet structure and provided with a nut at its upper end adapted to be fed downwardly on the stem and against the upper end of the bonnet.

3. In combination, a pump, a well liquid eduction pipe, a connection between the pump and the upper portio" be eduction pipe, and means at the lower end of the eduction pipe responsive to pressure on the liquid column in the eduction pipe by the pump for trapping and lifting liquid through the eduction pipe, said pump comprising a shell having a head at each end thereof, a longitudinally slidable cylinder in the shell, said shell being provided with a port therein for communication with the eduction pipe, a head structure on the slidable cylinder, a check valve provided for passing liquid from the liquid intake end of the shell to the liquid discharge end of the shell, and packing means on the head structure, said packing means adapted to wipe the inside of the shell.

4. In combination, a pump, a well liquid eduction pipe, a connection between the pump and the upper portion of the eduction pipe, and means at the lower end of the eduction pipe re-a the upper sponsive to pressure on the liquid column in the eduction pipe by the pump for trapping and lifting liquid through the eduction pipe, said pump comprising a shell having a head at each end thereof, a longitudinally slidable cylinder in the shell, said shell being provided with a port therein for communication with the eduction ppie, a head structure on the slidable cylinder, a check valve provided for passing liquid from the liquid intake end of the shell to the liquid discharge end of the shell, and packing means on the head structure, said packing means adapted to wipe the inside of the shell, said cylinder being provided With an actuating rod, and shock absorbing means between the rod and the cylinder.

5. In combination, a pump, a well liquid eduction pipe, a connection between the pump and portion of the eduction pipe, and means at the lower end of the eduction pipe responsive to pressure on the liquid column in the eduction pipe by the pump for trapping and lifting liquid through the eduction pipe, said pump comprising a shell having a head at each end thereof, a longitudinally slidable cylinder in the shell, said shell being provided with a port therein for communication with the eduction pipe, a head structure on the slidable cylinder, a check valve provided for passing liquid from the liquid intake end of the shell to the liquid discharge end of the shell, an outlet port for the shell, and packing means on the head structure, said packing means adapted to wipe the inside of the shell, an outwardly movable check valve at the outlet port of the shell and diierential spring means for maintaining the said last-mentioned check valve in closed position when pressure is being applied by the pump to the column of liquid in the eduction pipe.

6. In combination, a pump, a well liquid eduction pipe, a connection between the pump and the upper portion of the eduction pipe, and means at the lower end of the eduction pipe responsive to pressure on the liquid column in the eduction pipe by thel pump for trapping and lifting liquid through the eduction pipe, said pump comprising a shell having communication with the eduction pipe, a check valve provided fo passing liquid from the liquid intake end of tre shell to the liquid discharge end of the shell, an outlet port for the shell, and packing means on the head structure, said packing means adapted to wipe the inside of the shell, an outwardly movable check valve at the outlet port of the shell, and differential spring means for maintaining the said last-mentioned check valve in closed position, said diil'erential spring means consisting of a spring imposed upon said valve, a second spring acting upon the first spring, the pressure exerted by the second spring on the ilrst spring being varied by hydraulic pressure applied to the second spring.

EDSON F. GARDNER.

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