Deep-Well Pump. Page: 3 of 4
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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1,313,245
the piston 7, overruns the upper edge 16 of
the working barrel 6 thereby permitting this
working barrel to fill with the cleaning
fluid. On the down stroke of the pistons
5 the oil in the working barrel 4 is forced up
through the valve 10 through the hollow
sucker rod 8, and out through the discharge
conduit 1'. Also during the down stroke
the cleaning fluid is forced by the pistons 7
10 down through the port 13, up: through the
valve 14, being discharged into the working
barrel 4- at and around the valve 12, thereby
scouring and cleaning this valve of any ac-
cumulation of sand. This fluid also' passes
15 out through the valve 10 and tends also to
keep this valve clean. It follows from the
operation described that the fluid in the
working barrel 6 is under a greater pressure
than the oil in the working barrel 4, and
20 the result of this is that this cleaning fluid
tends to force its way. down between the
piston 5 and the working barrel 4, so as to
keep the working surfaces of these two parts
clean and free of said. and results in greatly
25 prolonging the life of the apparatus.
While I have described my improved ap-
paratis as particularly adapted and intend-
ed for pumping oil, it is obvious that it
may also be used with advantage in water
30 wells and in salt wells, and generally for
deep well pumping, where there is a tend-
ency for sand to flow into the wells.
Also, while I have described only one cii
bodiment of my invention, I am aware that
35 modifications may be made without depart-
ing from the scope of my claims.
What I claim is:
1. The method of preventing the accuiiu-
lation of sand in the working barrel of a.
40 deep well pump. comprising delivering a
scouring flow of fluid into the working bar-
rel at a point in the immediate vicinity of
the inlet valve within the period when the,
inlet valve is seated.
45 2. A deep well pumtp comprising a work-
ing barrel, an intake valve for said working
barrel, and ieans for delivering a fluid
from the surface of the ground into said
working barrel adjacent said valve, while
50 said valve is seated.
3. A deep well pump comprising a work-
ing barrel, an intake valve therefor. a see-
oh' I working barrel above the first, pistons
in -,aid working barrels connected to and op-
55 rated by a common sticker rod, means for
delivering a liquid into the upper work-
ing barrel and for forcing it on the down
stroke of the sucker rod into the lower
working barrel when said lower barrel is
60 ender the full static head.
4. A deep well pump comprising a work-
ing barrel, an intake valve therefor, a sec-
ond working barrel above the first, pistons'
in said working barrels connected to and
65 operated by a con mon sucker rod, meansfor delivering a .liquid into the upper work
ing barrel and for forcing it on the down
stroke of the sticker rod into the lower work-
ilg barrel at a point adjacent to the intake
valve of.tlic lower working barrel. 70
5. P1tiiipimg apparatus of the kind de-
scribed comIprising two working barrels. pis-
tons disposed in stid barrels and connectec(d
to each other and to a hollow sucker rod,
iieans including suitable valves and ports 75
whereby inder 1:eciprocation of said pistons
one piston operates to force fluid from the
well to the surface of the ground and the
other operates to deliver a cleaning fluid
into the working barrel of the first men- 80
tioned piston when the barrel of t(he first
mentioned piston is under the full static
head.
6. Pumping apparatus of the kind de-
scribed comprising two working barrels of 85
different diameters superimposed one on the
other, an elongated hollow member having
an enlarged upper portion adapted to func-
tion as a piston in the upper working barrel,
and a reduced lower portion adapted to 90
function as a piston in the lower working
,barrel, intake and outlet valves for said
working barrels, means for supplying a
fluid to the upper working barrel and for
delivering it .therefrom, into the lower work- 95
inr barrel, for the purpose described.
7. In an apparatus of the kind described,
a pump disposed in the well and adapted to
force liquid to the surface of the ground,
said pump having an intake valve, an aux- 100
iliarv pnup also disposed in the well, com-
mon operating means for both pumps,
means for supplying a liquid from the sur-
face of the .ground to the auxiliary pump,
and means for conveying liquid from the 105
auxiliary pump to a point adjacent the in-
take valve of the main pump.
8. A deep well pu111P comprising a main
working barrel, an intake valve therefor,. an
auxiliary barrel, pistons in said barrels con- 110
nected together. and means for delivering
a liquid into said auxiliary barrel and for
forcing it on the down stroke of the piston
in said main barrel into the main working
barrel adjacent said intake valve. 115
1. In an apparatus of the kind described,
a pump disposed in the well and adapted
to force liquid to the surface of the ground,
an auxiliary pump also disposed in the well,
said auxiliary pump being adapted to create 120
a higher pressure than the static head on
said main pump, common operating means
for both lutmlps, liteans for supplying a
liquid from the surface of the ground to the
auxiliary pump, and means for conveying 125
1 liquid from the auxiliary pump to the main
,puni at a point near the bottom of the
working barrel of said main pump.
10. In an apparatus of the kind described,
a pump disposed in the well and adapted to 130
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Andrews, Benjamin. Deep-Well Pump., patent, August 19, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1258520/m1/3/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.