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Патент USA US2126880

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Aug. 16, 1938.
E. F. GARDNER
2,126,880
PUMPING APPARATUS
Filed Jan. 25, 1937
4 Shee'ts-Sheet l
Áííorneus
Aug. 16, 1938.
E. F. GARDNER
`
PUMPING APPARATUS
Filed Jan. 25, 1937
2,126,830
'
`"-1 Sheets-Sheet 2 l
A ítorneus
Aug. 16, 1938.
E. F. GARDNER
2,126,880
PUMPING APPARATUS
Filed Jan. 25, 1937
4 Sheets-Sheet 5
Ínveníor
_Za-¿7.5072 Í Gard/’7a er’
Aug. 16, 1938.
E. F. GARDNER
2,126,880
PUMPING APPARATUS
Filed Jan. 25, 1937
Eds@
4 Sheets-Sheet 4
Inventor
:I Hummm
Patented Aug. 16, 1938
2,126,880
UNITED STATES PATENT OFFICE
2,126,880
PUMSPING APPARATUS
Edson F. Gardner, Covington Township, Lacka
wßnna County. Pa.
Application January 25, 1937, Serial
No. 122,240
6 Claims. (Cl. 103-44)
This invention appertains to new and useful
improvements in pumping apparatus and more
Figure 13 is a sectional view on the line |3-|3
particularly to apparatus for pumping iluid from of Figure 1.
Wells.
Referring to the drawings wherein like nu
The principal object of the present invention is merals designate like parts, it can
to provide a pumping apparatus whereby liquid
10
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 object of the invention is
to distribute the
pumping load over both halves
cycle; i. e., in the one-half of
¿o
20
25
age tank under pressure.
Other important objects and advantages of
the invention will become apparent to the reader
of the following specification.
In the drawings:
(à O
Figure 1 represents a vertical sectional view
through the well casing and well casing head
and well assemblies.
Figure 2 is an end
elevational view of the
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.
drainage and ventilation.
Extending downwardly from the core |5 is the
eduction pipe 2| connecting with the well as
sembly 1.
Referring to Figure 3, it can be seen that
the pump 6 consists of the shell 22 having the 30
head 23 at one end secured to the shell by ma
necting rod 30 for the cylinder 21 extends
through the head 29 and threads into the collar 40
3|. A cushion annulus 32 is provided between
the head 29 and the collar 3| while a coiled
compressible spring 33 is interposed between
cross
sectional
view
on
the
line.
8_8 of Figure 7
the _collar 3| and the head 28.
’I'he head 28
Figure 9 is a top plan view of the cylinder
perhead
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 the clamp ring 36 between which and the head
5
Figure 8 is a
valve elements shown in Figure 4.
Figure 12 is a side elevational view of the pis
ton
shell shown in Figure 4 with a part broken
away.
33 a packing gland 31 is clamped and disposed 50
55
2,126,880
2
A seating ring 39 is threaded into the clamp
ring 36 and has the pin 40 extending inwardly
presslble spring 9| for normally urging the valve
therefrom with the check valve 4| thereon as
well as the spring means 42 for normally main
taining 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 ad
jacent end of the pipe line I9.
Upstanding from the top portion of the shell
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 nor
mally 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 compressi
ble coiled spring 81 is interposed between the 10
22 is the barrel 44 flanged at its upper end as at
10 45 for supporting the flanged end 46 of the bon - flanged lower end of the piston 69 and the bottom
of the cup-like section 60.
net structure 41. A diaphragm 48 is clamped be
It can now be seen, that when the cylinder 21
tween the flanges 46-45 and traverses the in
of the pump 6 in Figure 3 is moved toward thc
terior of the barrel 44 and bonnet 41 as shown in right the column of iiuid in the pipe |8--2| is 15
Figure 3. A cup member 49 rests upon the dia
placed under pressure and this forces the cylin
15 phragm 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 adopt
ed. A second cup structure 5| bears against the
underside of the diaphragm 48 and a coiled com
pressible spring 52 is interposed between this cup
5| and the valve element 53 which normally en
gages the removable seat 54. The usual receiving
tank (not shown) has a pipe line connection to
25
the neck 55.
der 61 and piston 69 downwardly in the shell 69
vagainst the tension of the spring 81. As this as
sembly moves downwardly, the valve 18 will open
and allow liquid to ñll the cylinder 61 as weil as 20
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 pis 25
ton 69 upwardly displacing the liquid from the
space 88 into the cylinder 61 through ports 19
In some instances where it may be desirable
and in view of the fact that it cannot leave the
that the pump shown in Figure 3 be employed cylinder 61 by way of the valve 18, it must pass
for pumping air to the tank, a check valve 56 is upwardly through the ports 83. This fluid is then 30
mounted on the head 23. When the pump is used
30 for pumping liquid, the air intake 51 is sealed. in the shell 22 in advance of the superhead 33 of
the cylinder 21. By now reversing the direction
However, when it is desired that air be com
of the cylinder 21 so that the cylinder 21 is mov
pressed, the air intake is opened and operation ing toward the right, the trapped liquid is put
of the cylinder 21 will cause air to be drawn into under compression so that the valve 4| opens
the shell 22 and forced into the space 58 and sub
and allows a portion of the liquid to pass into
sequently pass the valve 5_2 to the tank collecting the superhead 33 and out through the ports 34 to
the same.
Now referring to Figure 4, (the internal well
assembly) it can be seen that this assembly con
sists of the shell 59 internally threaded at its low
40 er 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.
A45
The upper end portion of the shell 59 is inter
nally threaded to receive the externally threaded
ring 62 and the enlarged externally threaded low
er 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
50 the upper edge of the shell 59 and acts as lock
ing means.
The ring 62 acts as a clamp ring for theV pack
ing 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 gener
ally referred to by numeral 69. This piston unit
consists of the shell 10 having the outwardly dis
posed circumferentìally extending iiange 1| and
00 the pair of annular members 12-13 thereon. In
terposed between the annular member 13 and the
member 12 is the packing gland 14 and also a
second packing gland 15 is interposed between
f the flange 1| and the annulus 12. The cylinder
18 of the piston 69 is externally threaded to en
gage through the annulus 13 and into the inter
nally 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. Further
75
more, a stem 88 rises from the head 16 and has
the valve 18 thereon as well as the coiled com
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 40
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 diñerential assembly in conjunction with
the valve 53.
The same serving to maintain a
suiiicient and- practically 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 inter
posed betweeen the shoulder 3| and the head 28 55
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.
2,126,880
Having described the invention, what is claimed
3
as new isz
sponsive to pressure on the liquid column in the
1. In combination, a pump, a well liquid educ
tion 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
eduction pipe by the pump for trapping and lift
ing liquid through the eduction pipe, said pump
pipe by the pump for trapping and lifting liquid
through the eduction pipe, a pipe leading to the
10 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 down
wardly tapering pocket in the said body, a hollow
15 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 educ
tion 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 down
wardly 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 educ
tion pipe, a connection between the pump and
the upper portio" ' ’ ‘be eduction pipe, and means
45 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 lon
gitudinally slidable cylinder in the shell, said shell
being provided with a port therein for communi
cation with the eduction pipe, a head structure
on the slidable cylinder, a check valve provided
for passing liquid from the liquid intake end of
55 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 educ
tion 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
comprising a shell having a head at each end
thereof, a longitudinally slidable cylinder in the
shell, said shell being provided with a port there
in 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 10
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 pro
vided With an actuating rod, and shock absorbing
means between the rod and the cylinder.
15
5. In combination, a pump, a well liquid educ
tion 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, said pump compris
ing 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 com
munication with the eduction pipe, a head struc
ture on the slidable cylinder, a check valve pro
vided 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 out
wardly movable check valve at the outlet port of
the shell and diiîerential spring means for main
taining 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 educ
tion 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 50
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 posi
tion, said diil'erential spring means consisting of 55
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 sec
ond spring.
EDSON F. GARDNER.
00
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