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Патент USA US3039132

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June 19, 1962
c. E. BIRDSALL
3,039,122
HYDRAULIC SUCTION HEAD FOR CLEANING WATER RESERVOIRS
Filed May 16, 1960
5-4
15
1NVENTOR
BY
ATTORNEYS
United States Patent 0
1,
3,039,122
Patented June 19, 1962
2
throats 11 on both sides of said channel. Additionally,
3,039,122
HYDRAULKC SUCTION HEAD FOR CLEANING
WATER RESERVOIRS
Clarence E. Birdsall, Rte. 2, Box 2747, Loomis, Calif.
Filed May 16, 1960, Ser. No. 29,526
1 Claim. (Cl. 15-1.7)
the height of channel 10 is less than the maximum height
of housing 1 so that the throats 11 merge above channel
10 below the central top portion 4 of said‘ housing. A
5 neck 12 is mounted on and upstands from such central
top portion 4 of the housing 1, being in communication
with the latter and serving the purpose hereinafter de
scribed.
This invention is directed to, and it is a major object
A relatively thin but full-length bristle brush 13 is dis
to provide, a novel hydraulic ‘suction head for cleaning
under~water surfaces--such 'as the botto. of a water 10 posed‘ in the channel 10, the brush including a longitudinal
supporting rigid back 14 in which the bristles at their upper
reservoir, and which may be a swimming pool, settling
ends are clamped, and which is considerably narrower than
tank, or the like.
the channel 10, as clearly shown in FIG. 3. This back
Another important object of this invention is to pro
above the bristles provides a longitudinal passage for the
vide a hydraulic suction head which includes an internally
mounted but depending brush adapted to sweep the under 15 reception of a horizontal rod 15 in ?tting and transversely
swingable relation, and which rod extends in the channel
water surface being cleaned; the head being formed so
10 from end to end thereof adjacent but short of its top.
that the brush is not disposed in the in?owing water, and
The rod 15 slidably projects through and is supported ad
which would tend to clog such brush with dirt, algae,
jacent its ends in the ends of the channel 10 and the hous
debris, etc. carried by such in?owing water.
It is also an object of the invention to provide a practi 20 ‘ing 1, as shown in FIG. 2, so that said rod may be readily
engaged and withdrawn from the brush by longitudinal
cal, reliable, and durable hydraulic suction head for clean
movement of the rod in one direction. The brush is thus
ing water reservoir, and one which will be exceedingly
removably mounted for to ‘and fro swinging movement in
effective for the purpose for which it is designed.
channelltl, and such brush is dimensioned so that it
These objects are ‘accomplished by means of such struc
ture ‘and relative arrangement of parts as will fully appear 25 depends below the bottom of the housing 1 a distance
su?icient to ride on and sweep the under-water surface
by a perusal of the following speci?cation and claim.
16 being cleaned.
In the drawings:
When the suction head is being drawn in the direction
FIG. 1 is a perspective view of the hydraulic suction
indicated by the arrow in FIG. 3, the brush occupies the
head.
FIG. 2 is an enlarged front elevation, mainly in section 30 position shown in such ?gure, but when the head is re
versed and moved in. the other direction, the brush like
and partly broken away.
wise reverses in its position. In other words, the brush
FIG. 3 is a fragmentary cross section on line 3~3
always engages the under-water surface 16 with a dragging
of FIG. 2.
and thus most effective sweeping action.
Referring now more particularly to the drawings, and
to the characters of reference marked thereon, the novel 35 A debris trap, indicated generally at 17, is disposed
directly above the neck 12, and such trap includes a
hydraulic suction head comprises an elongated, down
cylindrical container 18 having a top 19 and a bottom 20.
wardly opening, transversely extending suction housing,
The container 18 is threaded to the bottom 20 as shown,
indicated vgenerally at 1; such housing, which is closed at
and to the end that such container 18 may be detached
the ends, including a front wall 2, a rear Wall 3, a central
for the purpose of cleaning out debris which accumulates
top portion 4, ‘and outwardly ‘and downwardly sloping
therein.
top portions 5 which extend from the central top portion
A vertical tube ‘21 extends centrally through the bottom
4 to the ends of said housing 1.
20, projecting both above and below the same. The
At the ends thereof the suction housing 1 is formed with
downwardly projecting portion of ‘the tube 21 is threaded
upstanding cages 6, each having a wheel 7 journaled there
in; the wheels 7 extending below the cages 6 for engage 45 into the neck 12, while the upwardly projecting portion
of said tube terminates at its upper end in container 18 a
ment with the under-water surface being cleaned. Such
substantial distance from the top 19‘.
wheels ‘also support the suction housing 1 so that the
Within the container 18 the upwardly projecting portion
open bottom thereof runs adjacent but in clearance rela
of tube 21 is ?tted with an umbrella grid, indicated at 22.
tion to such surface.
The umbrella grid .22 comprises a plurality of inverted,
An elongated handle 8 extends at an upward and rear
substantially half-circle de?ector ?ngers 23 ?xed at their
‘ward angle from the back of the suction housing 1 central
inner ends to a common center point 2.4. From the center
ly of its ends; such handle being adjustably secured be
point 24 the de?ector ?ngers 2&3 radiate a distance greater
tween transversely spaced quadrants 9 ?xed ‘on and pro
than the radius of neck 12 and certain of such ?ngers
jecting from the rear wall 3.
An elongated, inverted, U-shaped channel 10' extends 55 terminate above the upper end of said tube 21. How
ever, a number of the ?ngers include downwardly extend
in the suction housing 1 from end to end thereof and in
ing shanks 25 which are ?xed at their lower ends to the
symmetrically spaced relation between the front wall 2
outside of the tube ‘21 so as to support the umbrella grid
and rear wall 3; such downwardly opening channel ter
22.
minating at the bottom in the same horizontal plane as
The top 19 of the debris trap 17 is formed with an up
60
the bottom of the suction housing 1.
standing neck 26 which communicates with the interior
The U-shaped channel 10 is of constant height from
of container 18‘. The neck :26 is coupled to a hydraulic
end to end thereof, and the end portions of such channel
suction hose 27 by means of a ?tting 28. The suction hose
extend through the downwardly and outwardly inclined
27 leads to, and is connected with, a suction pump
sloping portions ‘5 of the suction housing 1, as clearly
shown in FIG. 1. The adjacent wall of the wheel cages 65 (not shown).
In use of the above described hydraulic suction head it
6 form end closures for both the housing 1 and the chan
is worked back and forth on the under-water surface 16
nel 10—all in rigid unitary relation.
by means of the handle 8, and during such operation
As the U-shaped channel It} is much narrower from
water is drawn into and flows upwardly through the in
wall to wall in ‘a front to rear direction than the housing
1, and as such channel 10 occupies. a symmetrical position 70 take throats 11, thence passes into the central part of the
housing 1 directly below the top portion 4, and next
in such housing, there is formed-in the latter-intake
3,039,122
3
4
?ows upwardly through neck '12 and tube 21 into the
debris trap 17. As the water so ?ows, dirt, algae, and
other ‘debris, as swept from the surface 16 by the brush
16, is entrained in and carried with such Water into the
debris trap 17, and from whence the water is drawn out
through the suction hose 27.
As the water passes through the debris trap 17, any
not form a departure from the spirit of the invention, as
de?ned by the appended claim.
Having thus described the invention, the following is
claimed as new and useful, and upon which Letters Pat
ent are desired:
» r
A suction head comprising an elongated downwardly
opening suction housing, said housing being closed at its
rocks, metallic pieces, or the like which are of a size to
ends and having front and rear walls, a central horizontal
cause possible damage to the suction pump are caught
top wall portion and outwardly and ‘downwardly inclined
by the untbrella grid 22' and deflected ‘downwardly in the 10 top wall portions extending between the central portion
container 18, coming to rest on the bottom 20; this for the
and said ends, a suction conduit connected in communica
reason that the velocity in the container 18 is less than
tion with said central top wall portion, and an elongated
in the hose 27.
:By reason of the fact that the brush 13 is carried in the
downwardly opening straight-topped brush-containing
channel mounted in the housing intermediate the front
channel 10, and through which no water ?ows, the chance 15 and rear walls and in spaced relation thereto; the top of
the channel being spaced below the central top portion
of the ‘brush 13‘ being fouled with dirt, algae, or debris
of the housing but above the lower ends of said inclined
is greatly minimized; substantially all of such maerial
being carried about—or ?owing upwardly outside of—
top wall portions, and the end portions of the channel
extending to the ends of the housing through the corre
the channel 10 in the intake throats 1-1.
The described suction head provides a very e?ioient 20 sponding inclined top wall portions of the housing.
device for the cleaning of an under-water surface in a
reservoir, and a ‘device which can ‘be readily and con
veniently manipulated by the operator standing at the
edge of the reservoir and working the suction head by
means of the elognated handle 8. Further, the debris 25
trap 17 has substantial utility as a safety device to prevent
suction pump damage.
From the foregoing description it will be readily seen
that there has been produced such a device as will sub
stantially ful?ll the objects of the invention, as set forth 30
herein.
‘While this speci?cation sets forth in detail the present
and preferred construction of the device, still in practice
such deviations from such detail may be resorted to as do 35
References Cited in the ?le of this patent
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Kindel _______________ __ July 27,
Matchette _____________ __ June 9,
Fetters et al __________ _._ Dec. 28,
Tideman ____________ __ Nov. 18,
I'Martinet _____________ __ Oct. 25,
Ernzer ______________ __ Aug. 14,
Leathers _____________ __ Aug. 28,
Everson _____________ __ Dec. 27,
Brown et al __________ _... Nov. 11,
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Young _____________ _._ Feb. 16, 1954
Zabel _______________ __ Aug. 18, 1959
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