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Патент USA US3088688

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May 7, 1963
'
I
c. L. TURNER
3,088,678.
"LAWN SPRINKLER
Filed Nov. 15, 1961
D
2 sheets-sheet 1
é
INVENTOR
May 7, 1963
e. L. TURNER
3,083,678
LAWN SPRINKLER
Filed NOV. 15, 1961
2 Sheets-Sheet 2
.5
/
///
rl7j1g.4
INVENTOR
38
Geo/ye L. 7Z1r/1er
QKPM
a]
ATTORNEY
United States Patent O?tice
2
1
3,038,678
LAWN SPRINKLER
George L. Turner, Hickory Corners, Mich, assignor to
H. B. Sherman Manufacturing Company, Battle Creek,
MiclL, a corporation of Michigan
Filed Nov. 15, 1961, Ser. No. 152,557
8 Claims. (Cl. 239-—-23t§)
3-,n88,t78
Patented May 7, 1963
ing movement, and a spray de?ector in the form of a
- ?ipper carried ‘by the carrier and mounted for swinging
movement on a second longitudinal axis relative to the
carrier and being movable with the carrier.
Yet another object of this invention is to provide novel
spray de?ecting means which includes an inverted U
shaped carrier formed by a pair of end plates connected
at their upper ends by a connecting bar, and a V-shaped
?ipper carried by the carrier for movement therewith
This invention relates in general to new and useful im
provements in lawn sprinklers, and more particularly to a 10 and for pivotal movement relative to the carrier, the V
shaped ?ipper having a lower portion projecting down
lawn sprinkler of the wave type.
wardly ‘below the pivot axis thereof whereby when the
There are numerous ‘forms of wave type lawn sprinklers
carrier and the ?ipper are both disposed in a remote posi
available. However, the difficulties with the previous
tion, the lower portion of the ?ipper will be in the path
sprinklers of this general type involve water driven motors
which clog with foreign matter which commonly gets into 15 of a water spray so as to reverse the direction of move
ment of the carrier.
the hose, are expensive, and are generally of only mod
Still another object is to provide a novel spray de?ector
erate life, and another important consideration is the fact
that the sprinkling pattern which a one movable part
for wave type lawn sprinklers wherein same includes a
sprinkler with ?ipper produces, instead of being rectangu
V-shaped ?ipper, with the upper outer edges of said
In 20 ?ipper having outturned wings which provide more posi
tive action of the ?ipper and prevent same from coming
other words, with previous practice involving one mov
lar, as desired, is substantially of a ?gure-8 shape.
to rest so as to be di?icult to actuate through the force
able piece, wave type sprinklers is that when the sprinkler
?ipper is at one extreme end of its travel, the sprinkler
imparted by the water issuing from the lawn sprinkler
nozzle.
pattern comes to a rounded end and as the ?ipper starts
A further object of this invention is to provide a novel
returning to the other end of its extreme movement, the 25
spray de?ector structure ‘for use in a wave type lawn
pattern will gradually Widen ‘out until it is about half
sprinkler wherein the de?ector is in the form of an up
way to the upright position and then the pattern will start
standing V-shaped cross-sectional ?ipper carried by an
coming in so that by the time the ?ipper is in its upright
inverted U-shaped carrier with the carrier being pivotally
position, the pattern is again quite narrow. This pat
tern then gradually increases in width until the ?ipper 30 mounted for swinging movement about a ?rst longitudi
nal axis and the ?ipper being pivotally mounted on the
is approximately half way from its upright to its opposite
travel end position when it reaches a maximum width of
carrier for movement relative thereto about a second longi
sprinkled pattern and then starts shrinking down until
at the end of the travel, the pattern is of rounded end
tudinal axis, the carrier having stop means for restricting
the pivoting of the ?ipper relative thereto, and there being
con?guration again. This, of course, is not a good sprin
kling pattern since the ideal pattern is substantially rec
other stop means for restricting the pivoting of the car
rier, ‘both of said step means being of the resilient type
tangular rather than that of a ?gure-8 form. It was with
so as to‘ cushion the stopping of the ?ipper and the car
a recognition of these‘ problems that the sprinkler of the
present invention has been developed, and as a result,
the substantially rectangular pattern has been attained
along with low cost, and elimination of the need of a
water driven motor.
40
rier and thereby make the operation of the lawn sprinkler
relatively noiseless.
Still further objects and advantages of the invention
will appear as the description proceeds.
To the accomplishment of the foregoing and related
ends, the invention, then, consists of the means herein
after fully described and particularly pointed out in the
Accordingly among the objects of the present inven
tion has been the provision of a lawn sprinkler which has 45
claims, the annexed drawings and the following descrip
a nozzle having a con?guration so as to assure a sub
tion setting forth in detail certain means for carrying out
stantially rectangular spray pattern, such nozzle having
the invention, such disclosed means illustrating, however,
a relatively large central portion and oppositely extending
‘but several of the various ways in which the principle of
outlet slots which gradually taper inward as they extend
the invention may be used.
towards the outer ends thereof.
50
Another object of this invention is to provide a novel
In the annexed drawings:
nozzle for use in a lawn sprinkler to effect a rectangular
FIGURE 1 is a plan view of one form of the lawn
spray pattern with the lawn sprinkler, the nozzle having
a central portion generally of a circular outline and sub
stantially V-shaped end- portions pointing in opposite di
sprinkler, which is the subject of this invention, and shows
the general details thereof with a portion of the ?ipper
broken away to expose the outlet opening of the nozzle.
*FIGURE 2 is a side elevational view of the lawn sprin
kler of FIGURE 1.
sired substantially rectangular spray pattern.
FIGURE 3 is a rear elevational view of the lawn sprin
Another object of this invention is to provide a simpli
?ed and positive action wave type sprinkler which sprin 60 kler of FIGURE 1.
HGURE 4 is a bottom view of the lawn sprinkler.
kles a substantially rectangular spray pattern, and which
FIGURE 5 is a perspective view, on a reduced scale,
pattern may be made wide or narrow by means of an
of the lawn sprinkler.
adjustable member mounted over the nozzle outlet.
FIGURE 6‘ is a fragmentary transverse vertical sec
Another object of this invention is to provide a novel
tional view through the lawn sprinkler as taken along the
lawn sprinkler of the wave type which is provided with
65 section line 6-6 of FIGURE 1, looking in the direction
novel means for effecting the traveling or swinging of a
rections wherein the proper amount of water is provided
in the fan-like spray from the nozzle to produce the de
fan-like spray from a spray nozzle so as to shift the spray
of the arrows, and shows the internal details of construc
delivered from the spray nozzle over a predetermined
pattern without the need of a water driven motor.
tion of the lawn sprinkler.
A further object of this invention is to. provide in a
wave type lawn sprinkler a spray de?ector which includes
taken along the line 7—7 of FIGURE 1, looking in the
direction of the arrows, with the spray de?ector structure
a carrier mounted on a ?rst longitudinal axis ‘for swing
being swung substantially upright from the position shown
FIGURE 7 is a longitudinal vertical sectional view as
aosacre
3
4
in FIGURE 1, and shows more speci?cally the details
of mounting of the spray de?ector structure.
FIGURE 8 is a fragmentary plan View of the adjust
portion 27 of a maximum width and generally V-s'haped
end portions 28 which point away from the circular
central portion 27. This particular shape of the dis
charge opening 26 provides the proper supply of water
able nozzle which may be used to vary the width of
spray pattern delivered by the iwave-type lawn sprinkler
of the present invention.
Referring now to the drawings in detail, it will be seen
in the fan~shaped spray from the spray nozzle 24 so
that as the water spray is de?ected back and forth from
one side of the lawn sprinkler 10 to the other, a sub
that the lawn sprinkler is generally referred to by the
stantially true rectangular spray pattern is provided. In
numeral 10. The lawn sprinkler 119 includes a support
a conventional small lawn sprinkler an %” diameter
which may be of any suitable type and which is referred 10 opening 27, and a 1/2” length discharge opening 26 has
to by the numeral 11. The support 11 is illustrated as
been found to be very satisfactory for substantially rec
including a suitable relatively flat base 12 having a pair
tangular pattern sprinkling.
of longitudinally extending support ribs 13 projecting
In some cases the spray pattern is desired to be nar
downwardly from the underside thereof, as is best shown
rower and longer than the normal full width spray pat
in FIGURES 2 and 3. The base 12 is provided with 15 tern, and this is accomplished by providing the spray
a centrally located upstanding, integral housing, generally
nozzle 24 with a rotary adjustable member 48 as shown
referred to by the numeral 14. The housing 14 includes
in FIGURE 8. This adjustable member is preferably
an upstanding front portion 15 which terminates in a
of a shallow hollow cap form which will overlie and
depending rear wall 16. The housing 14 also includes
rotatably ?t and closely cover spray nozzle 24. The
a pair of side walls 17 which extend rearwardly of the 20 top portion of the side edges of this rotary adjustable
front portion 15 as well as forming the side walls thereof.
member 48 are preferably supplied, at the opposite side
The rear ends, FIGURE 7, the side walls 17 are con—
edges of same, with a pair of short circumferential slots
nected together by an upstanding rear wall 18. The
49 into which the ends of pivot pins 37a and 38a extend
housing 14 also includes a bottom 19 with drain open
and hold down the rotary adjustable member under con
ings 190, FIGURE 4, at one end thereof.
25 ditions of operation. Rotary adjustable member 48 is
The front portion 15, FIGURE 1, of the housing 14
preferably of a size to be readily rotated concentrically
has a tubular extension 20 at the forward end thereof.
about spray nozzle 24 and yet suitably frictionally held
A water supply tube 21, FIGURES 4 and 7, extends
against rotation between adjustments. This adjustable
through the tubular extension 29 generally above the
member 48 is provided on its top with an opening 50
plane of the base 12 and terminates beneath the bottom 30 of substantially the same shape as discharge opening 26
19 of the housing ‘14. A suitable hose coupling ?tting
of nozzle 24 but a little larger so as to not interfere with
22 is mounted on the forward end of the water supply
spraying of water through nozzle 24 when opening 26
tube 21 for connecting the same to a water hose.
is lined up with opening 50. However, when adjustable
The bottom 19 of the housing 14 is provided with a
member 48 is rotated to the position shown in FIGURE
central opening de?ned by a depending circumferential 35 8, the adjustable member 48 at the side edges of opening
?ange 23, FIGURE 7. A spray nozzle 24 has a lower
50 will cover the outer ends of the nozzle opening 26
tubular portion 25 which extends down through the
and thus narrow the delivered stream of water coming
?ange 23 and is secured to the side portion of the closed
out of nozzle 24 with resulting narrowing the spray pat
rear end of the water supply tube 21 with the interior
tern width while lengthening same. Adjustments of the
of the water supply tube 21 opening into the tubular
rotary adjustable member 48 between its end positions
portion 25 of the spray nozzle 24. In this manner, water
will, of course, likewise vary the spray pattern.
is supplied to the inner end of spray nozzle 24. The
The lawn sprinkler 19, FIGURE 7, also includes a
side of spray nozzle 24, FIGURE 4, is preferably pro
spray de?ector assembly generally referred to by the
vided with an integral projection 46 ?tting a correspond
numeral 29. The spray de?ector assembly 29 includes
ing groove in bottom 19 to hold nozzle 24 against turn
a carrier 30 and a spray de?ector in the form of a ?ip
ing out of suitable operating position. Water supply tube
per 31. These are generally seated within the con?nes
of the housing 14, as illustrated.
21 is likewise provided with an integral projection 47
?tting a corresponding groove in tubular extension 20
The carrier 30, FIGURE 7, includes a pair of up
to hold supply tube 21 in desired ?xed position.
standing end plates 32 and 33 which are connected to
At this time, it is pointed out that the water supply 50 gather at their upper ends vby means of a connecting bar
34. The connecting bar 34 may also be provided with
tube 21, FIGURE 7, and the spray nozzle 24 are prefer
ably formed from Cycolac plastic, which is a high-impact,
a forward extension 35 for appearance and added rigidity
of carrier 30.
styrene-type, rigid, thermoplastic resin, with this partic
ular plastic being used for the noted properties as well
The lower ends of the end plates 32 and 63‘, FIGURE
as for the simple reason that it is readily weldable to 55 7, are provided with opposed bosses 36 in which are dis
posed aligned pivot pins 37 and 38 carried by the rear
fasten the spray nozzle 24 to the water supply tube 21.
This particular plastic is soluble in acetone or methyl
wall "16 and the rear wall 18, respectively. In this man
ethyl ketone, which solvents are about as thin as water
ner, the carrier 30 is mounted for swinging movement
and according to the welding procedure followed, some
back and forth on opposite sides of a vertical plane pass
of the Cycolac plastic is ?rst dissolved into one of these 60 ing through the center of the discharge opening 26 about
a ?rst longitudinal axis which lies in the vertical plane
solvents, which makes a thicker welding solution, and
passing through the discharge opening 26, when the lawn
the solution is brushed over the bottom of the tubular
portion 25 after it has been placed within the ?ange 23.
sprinkler 10? is setting on a horizontal surface, and with
the ?rst longitudinal axis being disposed generally co
The water supply tube 21 is then coupled to the solution
coated face of the tubular portion 25 so as to weld or
‘bond the water supply tube and the spray nozzle 24
together as a single through passageway unit. It is to
be understood, however, that other types of materials
planar with the discharge opening 26.
The ?ipper 31, FIGURES 6 and 7, is of a V-shaped
cross-section and is ‘formed of a pair of Wings 39' connect
ed together at their lower ends to de?ne a pointed apex
may be utilized in the formation of the assembly con
40. An elongated pivot pin 41 extends the full length
sisting of the water supply tube 21 and the tubular por 70 of the ?ipper 311 and has the ends thereof journaled in the
tion 25 of the spray nozzle 24.
end plates 32 and 313‘ above the pivot pins 37 and 38. It
Reference is now made to FIGURE 1 wherein the
is also to be noted that ‘the wings 39 terminate at their
general outline of the discharge opening 26 of the spray
upper ends in outwardly directed wings 42 for supply
nozzle 24 is shown. It is to be noted that the discharge
ing ‘added pivoting force on ?ipper 3-1 by the stream of
opening 26 preferably has a generally circular central 75 water issuing from spray nozzle 24.
3,088,678
6
tially rectangular sprayv pattern as contrasted with the
In the operation of the lawn sprinkler 10’, a water spray
previous ?gure-8 pattern.
from the spray nozzle 24 would strike the projecting por
Although preferred embodiments of the invention have
tion of the apex 40' of the ?ipper ‘311, for instance, on the
been illustrated and described, it is to be understood that
left side thereof, FIGURE 6, but to the right of the pivot
minor modi?cations may be made in the invention within
pin 41. The pressure from-the water spray onthe ?ipper
the spirit and scope of the invention, as herein illustrated
31 would then cause the swinging force on ?ipper 31
and described. ‘It is further to be noted that while
to be in a counterclockwise direction about pivot pin 41.
directional terms have been used herein, the purpose of
On the other hand, this force acting on the ?ipper 3-1, at
same has been to facilitate describing the sprinkler as
the same time, is to the left of the axis of swinging of
the carrier 30', with the result that the carrier 30 is urged 10 resting on the ground in normal garden or yard sprinkling
position, and such terms are not to be considered as
to the right in a clockwise direction of rotation. During
limiting the invention.
the starting portion of this additional swinging movement
Other modes of applying the principle of my invention
or the carrier 30, the ?ipper SI is momentarily held in a
may be employed instead of those explained, change being
leftmost position with respect to the carrier 30. However,
as the carrier continues to swing from the left to the right, 15 made as regards the lawn sprinkler and combinations
herein disclosed, provided the means stated by any of the
as viewed in FIGURE 6, the pivot 41 of ?ipper 311 will
following claims or the equivalent of such statedmeans be
reach an overcenter position relative to nozzle 24, at
employed.
which time the ?ipper will also swing in a clockwise direc
I therefore particularly point out and distinctly claim as
tion about its pivot ‘41, the ?ipper swinging relative to
the carrier until it reaches an extreme right hand position 20 my invention:
11. A lawn sprinkler comprising a support, an up
with respect to the carrier where the upper inner edge
wardly directed nozzle carried by said support, said
of the ?ipper bumps ring 45. The ?ipper 31 continues
nozzle having a longitudinally elongated outlet to pro
to move back and forth as the spray hits ?rst one side
vide a fan-like spray, a water supply tube connected to
tinues to move to the right until the two reach their ex— 25 said nozzle for delivering water thereto, a carrier, said
of the ?ipper and then the other, and the carrier ‘30 con
treme right hand positions, at which time the effect at the
water spray on the ?ipper 31 results in the reversal of the
swinging movement of the ?ipper 31 and the carrier 30.
carrier being of an inverted U-shape and including a
pair of end plates and a connecting bar extending longi
‘The movement of the ?ipper, and separately the carrier,
tudinally between and secured to upper ends of said
end plates, ?rst mounting means on said support con
It is to be understood that the ?ipper 3'1, ?ipping back
tudinal ‘axis substantially aligned with said nozzle outlet,
is so rapid that the delivered droplets of water seem to 30 nected to lower portions of said end plates and mounting
said carrier for swinging movement about a ?rst longi
be continuous all the time over the spray pattern area.
a spray de?ector in the vform of a V-shaped ?ipper having
on its upper edges outwardly diverging Wings, a second
droplets which are ideal for sprinkling. It is again point 35 mounting means on said carrier mounting said ?ipper
thereon for movement therewith and ‘for swinging move
ed out at this time that the resultant spray pattern will be
ment relative to said carrier about a second longitudinal
of a substantially rectangular outline as compared to the
and forth in the spray stream issued from the spray nozzle
24, breaks up the spray stream into a myriad of small
axis substantially parallel to the ?rst, said wing carrying
edges of said ?ipper being disposed on opposite sides of
In order to cushion the spray de?ector assembly in its 40 said connecting bar for limiting swinging of said ?ipper
generally ?gure-8 shaped outline of previous sprinklers of
the single moving part type.
operation and reduce the noise of operation of the
sprinkler 10, the spray de?ector assembly 29 is provided
relative to said carrier, and means on said support en
gageable with said end plates for limiting swinging of
said carrier.
2. The lawn sprinkler of claim 1 wherein said nozzle is
URE 6, the end plate 32 is of a generally diamond-shaped
outline. The end plate ‘33, FIGURE 3, has a similar out 45 largest at its center and tapers towards the ends thereof
whereby a substantially rectangular spray pattern is
line. The lower portions of the end plates 32 and 33
formed.
normally engage the upper edges of the side walls 17 in
3. The lawn sprinkler of claim 1 wherein said ?ipper
the extreme swinging position of the carrier 30* so as to
with a few desirable ‘features. As is best shown in FIG
limit the extent of its swinging movement.
The lower
has a lower apex depending below said second longi
portions of the end plates ‘32 and 33 are provided with 50 tudinal axis into the path of the water spray vfor initiating
the swinging of said carrier from a remote position.
elongated slits '43 ‘to de?ne bottom connected spring
4. The lawn sprinkler of claim 1 wherein said connect
?ngers 44. It is these spring ?ngers 44 which come into
ing bar carries a resilient stop for engagement by said
contact with the upper edge of side walls 17, and thus
wing carrying edges of said ?ipper.
cushion the shock of the end plates 32 and 33‘ striking the
5. The lawn sprinkler of claim 1 wherein said end
side walls 17 and at the same time resiliently urge car 55
rier '30‘ in reverse direction.
plates have resilient extending edge portions for engage
ment with said support.
‘6. The lawn sprinkler of claim 1 wherein said ?ipper
has outwardly directed upper wings to make said ?ipper
controlled by the connecting bar 34. To this end, the
connecting bar 34 preferably carries a substantially cen 60 very responsive to liquid ?ow through said nozzle and
to prevent the stopping of said ?ipper in a balanced posi
trally located rubber ring 45 which projects to opposite
tion.
sides of the connecting bar 34 and is engaged by the
7. A lawn sprinkler comprising a support, an upwardly
wings ‘39 of the ?ipper 31 in their oscillating movement
directed nozzle carried by said support, said nozzle hav
and cushions same at the end of each swinging movement
65 ing a longitudinally elongated outlet to provide a fan
of same, and urges the ?ipper in opposite direction.
like spray, a water supply tube connected to said nozzle
It will be readily apparent that the lawn sprinkler,
for delivering water thereto, a carrier, ?rst mounting
which is the subject of this invention, is of an extremely
means on said support mounting said carrier for pivotal
simple construction, and may be readily assembled. It is
movement about a ?rst longitudinal axis lengthwise of
also apparent that the lawn sprinkler has substantially 70 said nozzle outlet, a spray de?ector, and a second mount
no wearing parts so as to have a long life and at the
ing means on said carrier mounting said spray de?ector
same time, the operation thereof is extremely quiet. In
for movement with said carrier and ‘for pivotal move
It is to be understood that the extent of swinging
movement of the ?ipper 31 relative to the carrier 30‘ is
addition, the lawn sprinkler is adjustable in size of the
ment relative to said carrier about a second longitudinal
rectangular spray pattern and provided with a specially
axis, wherein said spray de?ector is in the ‘form of a
shaped spray nozzle which produces the desired substan 75 ?ipper which is substantially V-shaped in cross-section
8,088,678
8
and having a lower apex depending below said second
longitudinal axis into the path of the water spray for
initiating the swinging of said carrier from a remote posi
tion, and wherein said ?ipper has outwardly directed
upper wings to make said ?ipper very responsive to liquid
?ow through said nozzle and to- prevent the stopping of
said ?ipper in a balanced position.
8. A lawn sprinkler comprising a support, an upwardly
directed nozzle carried by said support, said nozzle hav
ing a longitudinally elongated outlet to provide a ‘fan-like 10
spray, a water supply tube connected to said nozzle for
delivering water thereto, a carrier, ?rst mounting means
on said support mounting said carrier for pivotal move
ment about a ?rst longitudinal axis lengthwise of said
nozzle outlet, a spray de?ector, and ‘a second mounting 15
wherein there is a rotatable means mounted above said
nozzle for varying the size of the substantially rectangular
sprinkler pattern, ‘and further wherein the discharge open
ing of said nozzle is largest at its center and tapers toward
the ends thereof, whereby a substantially rectangular
spray pattern is formed.
References Cited in the ?le of this patent
UNITED STATES PATENTS
‘1,491,253
2,172,193
2,647,801
2,935,266
2,947,483
1924
1939
‘1953
1960
‘1960
FOREIGN PATENTS
means on said carrier mounting said spray de?ector for
movement with said carrier ‘and vfor pivotal movement
relative to said carrier about ‘a second longitudinal axis,
Barnes ______________ __ Apr. 22,
Downs ______________ __ Sept. 5,
Lycan ________________ __ Aug. 4,
Ooleondro et al _________ .. May 3,
Larson ______________ __ Aug. 2,
‘158,288
776,900
Australia ____________ __ Aug. 17, 1954
France ______________ __ Nov. 17, 1934
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