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Патент USA US2110027

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March l, 1938.
Filed Aug. 19, 1936
Patented- Mar. 1, 1938
2,110,027 '
Vincent~ Santarelli and John Giacobbe,~
Detroit, Mich.
application August. 19, 1936, serialr No. 96,824'
2' claims. ’ (o1. 10a-21:85).
Our- inventi'on relates: to» al new andï‘ useful»y im
Another object of the present invention is the
provement ina pumping mechanism» and particu:l provision in a device of this kind of an agitator
larly that: type of:A pumpingl mechanism» adapted
for use in. pumping liquids from reservoirs, conUl
tainersi, and'v the like and the inventiorrparti‘cu
larly lends. iïtselït for‘u'se.- on pur-r1p»operatedA spray
It isßan> object ot the present invention to- pro~
vide in a spray mechanism a pumping arrange
10’ ment, so- constructed‘- and arranged, that the liq
uid* passes into a welll or sunken- charnber and
from there is» forced by1 the pumping n'ieehani‘smy
to an outlet conduit. Devices ot‘ the general
type» referred to have been useld- and are well
known and particularly the type in* which arecip
rocating plunger rides in the wel-lì.` With the
which will serve to agitato the liquidi during the
pumping. operation' so that when solutions» are
used?, af settling of' the» dissolved material to the 5>
bottom of the tank will bey prevented.
Other objects will' appear hereinafter.
The invention consists. in the combination of
parts hereinafter described andì claimed.
Theinventiorr will be understood by a reference l0.
tothe accompanying drawing which forms a part
of this specification and in- which:
Fig; l is a top. plan view oi" a spray embodying
the invention.
Fig'. 2r is a. rear elevational view with parts 15.
broken» away and parts; shown- in section'.
types or construction which are well-known, the
Eig; 3 is a central sectional viewl through the
reciprocating plunger', on its backward movement,Y
is. withdrawn entirelyr trom» the» well in order to
20. permitÀ the flow of liquid: into# the welll so~ that,
upon: 11e-entry of the plunger into the well, the
liquid entrapped» therein
-be iorcedî outwardly
from the proper conduits..
objectionable tea-ture ifs that the pumping
25 plunger may'n'otbe properly alined with the welll,
so» thatits: reeentry into. the' welli will? be retarded.
and the pump plunger subjected to- considerable
excessive air; Thiaisv due-to thetact that the well
is of such an inside. diameter'throughout4 its- length
as> to snugly nt. the plunger and since the.- plung
er snugly nts the well throughout itsv length, >it
is necessary that the.` plungerv be. withdrawn; from
the: well to permit, the flow oí?. liquid. into: the Well.
pumping. mechanism, enlarged, and with parts
To overcome this disadvantage is one of the ob
jects of` the,V present invention and it is overcome
by forming the well of ‘av greater length than the
stroke of the plunger and enlarging the upper end
of the well so that when the plunger enters the
enlarged portion of the well, considerable clear
40 ance will be present around the plunger to permit
ñow of liquid into the well.
Since the plunger is
not withdrawn from the well and since the en
larged portion is tapered gradually to the smaller
portion, which snugly iits the plunger, even
45 though the pumping mechanism might not be
properly alined with the well, the plunger will
enter into snug engagement with the smaller
portion of the well easily and without being sub
jected to excessive wear.
Another object of the invention is the provi
sion of a simple and inexpensive valve mechanism
which may be easily and quickly removed and
replaced, which will function in a very eñicient
manner and which, when removed, will permit
55 access to the interior or the pumping mechanism.
broken away.
In the drawing, I' have illustrated the invention 20
used with atank 'l inthe top. 8'- of Vwhich there is
formed' an opening in which is positioned' the
sleeve 9.', carrying the screen IU; A cover I Il serves
as a. closure. for the opening so that material de
posited'in the tank may be screened through the 25
screen I0 and thus the passage of large particles
of solidi matter into; the tank would be prevented.
An` elevated bottom I I is.` formed on the tank and
secured: to; and, projecting downwardly from the
bottom oni one side thereof, is a well, the lower 3()y
portion I2 of which is of" smaller inside diameter
than the; upper‘ portion Il3, these portions: corn
municating by the inclined wall I4. Mounted
in the top 8?, in alinement with the well, is a
guide sleeve t5, through. which isV slidabl'y pro- 35
jected the pump barrel I6fy on which is ñxedly
mounted a head I'I. This head I1 is provided
with a boss I8, through which is projected the
angularly turned portion I9 of the pump rod 20.
Cotter pins 2l serve to retain the portion I9, pro
jected through the boss I 8. The lower end of
the rod 20 is attached to the lever 22, intermediate
its ends. This lever is pivoted on the pin 23, pro
jected through the bracket 24, which is mounted
on the tank l. 'I'he pin 23 projects through one 45
end of the lever 22 and the opposite end 25 is
angularly turned to provide a gripping portion
whereby the operator may grip the lever 22 and
rock it on its pivot pin 23 to effect a reciproca
tion of the barrel I6. The barrel I6 is provided 50
with a reduced tapered portion 26, which enters
the well and carries the threaded end 21, in
which is threaded one end of the plunger 28.
This plunger has the portion 29, which is adapted
to snugly engage the inner surface of the smaller 55
portion I2 of the well.> An opening 30 is formed
in the lower end of the plunger and closed by the
ball 3l, acting as a valve, this ball ñtting in the
pocket 32, formed in the plunger. Its removal
from the pocket 32 is prevented by wires 33,
which are welded or otherwise suitably secured so
as toextend across the pocket 32 at the upper
end thereof. Thus, liquid entering through the
opening 3€), will raise the ball 3| fromits seat and
may be permitted to pass into the interior of the
barrel I6. Extended longitudinally of the barrel
I6, is an outlet pipe 34, which terminates adjacent
the lower end of the tubular portion 26 and which
is secured at its upper end to the head I'I in com
munication with an outlet passage 35 which also
passes through the nipple 36, to which one end of
the flexible hose or conduit 3l may be attached.
This hose is connected through the valve 38 to
the rigid pipe 39, which serves asa gripping por
ture shown, but desire to avail ourselvesof such
variations and modiñeations as may come within
the scope of the appended claims.
Having thus described our invention, what we
claim as new and desire 'to secure by Letters
Patent is:
l. A pumping mechanism of the class described,
comprising: a liquid-receiving receptacle; a well
projecting outwardly below the bottom of said
receptacle, said well comprising an upper and a
lower portion, said upper portion being of greater
diameter than said lower portion and arranged
concentric of said lower portion, and said lower
portion being connected thereto by an inclined
wall; a top on said receptacle; a guide sleeve 15
mounted in said top in alignment with said well;
a pumping barrel slideably projected through
said guide sleeve; a tapered portion on the lower
end of said barrel extending into said well, said
tion for the operator and which carries the spray " tapered portion being threaded;«and a plunger 20
nozzle 40.
In operation, a rocking of the lever 22 will
effect, a reciprocation of the barrel IB, which will
serve to raise the plunger into the enlarged por
tion I3 of thefwell, so that liquid in the tank will
flow into the well and ñll it. lIt will be noted that
the plunger ydoes not withdraw from the well but
merely enters the enlarged portion so that on the
return or power stroke it is guided, positively, into
30 the small portion I 2 and as` it moves downwardly
threaded on said threaded portion and extending
into said well; means for reciprocating said bar
rel, said plunger upon reciprocation of said barrel
in one direction >moving from the larger portion
of said well into the smaller portion and upon 25
reciprocation in the opposite direction moving
from the smaller portion of said well into the
larger portion, said plunger being non-retract
able Íromsaid larger portion of said well.
2. A pumping mechanism of the class de
in the small portion, lthe liquidtrapped therein,
scribed, comprising: a liquid-receiving receptacle;
will be forced into the barrel I6, from which it
will pass into the pipe 34 and through the passage
a well projecting outwardly below the bottom of
said receptacle, said well comprising an upper
35 into conduit or hose 31.
and a lower portion, said upper portion being of
greater diameter than said lower portion and ar 35
Thus 4a failure of the
35 plunger to enter the well is prevented and exces
sive wear of the plunger is prevented. Moreover,
ranged concentric of said lower portion, and said
since this type of construction aiîords a positive
lower portion being connected thereto by an in
clined wall; a top on said receptacle; a guide
sleeve` mounted in said top in alignment with said
guiding of the plunger into the well, the plunger
may be formed from metal. It will also be noted
well; a pumping barrel slidably projected through 40
threaded portionl 2l, access to the threaded barrel said. guide sleeve; a tapered portion on the lower
I@ isaiîorded, thus facilitating a cleaning of the end of said barrel extending into said well, said
interior of the vbarrel I6 and affording access to ktapered portion_ being threaded; a plunger
the tube 34, so that it may be also cleaned, while threaded on said threaded portion said plunger
45 the head Il may be permanently mounted on the being of size for snugly engaging in the lower 45
portion of said well, said plunger having a pocket
barrel I6.
In order that the liquid may be constantly formed therein and provided with an opening
agitated and the deposit of sediment prevented, leading into said pocket, said pocket being in
40 that when the plunger is unscrewed from the
we mount an agitating arm 4I on the barrel I6
50 by means of the clamp 42. Consequently, since
the arm 4I moves with the barrel I6, it serves to
communication with the interior of said barrel, a
ball in said pocket for closing said opening; and 50
diametrically extending means >on said plunger
constantly agitate the liquid being pumped from
extending across said pocket for preventing
the tank.
movement of said ball from said pocket into said
- While we have illustrated and described the
55 preferred form of construction, we do not wish
to limit ourselves to the precise details of struc
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