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Патент USA US2391475

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Dec. 25, 1945.
Filed June 24, 1940
Patented Dec. 25, 1945
Joseph B. Newhardt, Berwyn, Ill., assignor of one
half to Charles H. Angeli, Danville, Ill.
Application June 24, 1940, Serial No. 342,065
3 Claims.
The invention is concerned with improvements
in articles of manufacture of the class which are
buoyant in liquids such as water and are intend
ed to float in an upright position with a substan- ‘
tial portion of the article above the surface of
the water. The improvements provided by the
invention are particularly well adapted for use
in such articles as decoy waterfowl and children's
(Cl. 43-3)
terial advantage, for example, in decoys which,
as conventionally constructed of wood, are bulky
to transport and, unless carefully handled, are
subject to breakage, particularly at the neck.
Wooden decoys may also-become waterlogged if
not properly protected.
The collapsible construction is also cooperative
with the concave bottom. With these two fea
tures, the article may be collapsed to expel a
toys which resemble animate objects and which
10 large portion of the air from the space beneath
the concave bottom, and, when allowed to expand
One of the primary objects of the invention
with the edges‘of the concave bottom held be
is to provide an article of the 'class described
neath the surface of the water, a partial vacuum
possessing the high degree of stability or equi
is created which holds the article ?rmly upright
librium, particularly in rough or choppy Water.
in the water. Some water will, of ‘course, be
Furtherobjects of the invention are to provide 15 forced from the surrounding body thereof up
an article of this class which is relatively inex
into the low pressure space within the concave '
bottom, making the water level in this zone high—
and easy to transport.
er than that of the surrounding body of water
An outstanding feature of the invention is the
and/or causing the article to seek repose at a
reentrant or concave shape of the bottom of the
somewhat lower level ‘in the surrounding body
article. This I have found lends buoyant ar
of water. This additional water is held in posi
ticles, such as decoy water fowl, for example, ex
tion beneath the concave bottom and acts as bal
ceptionally good stability even in-rough water.
last. Water thus drawn into this space does not
It is common practice to weight decoys, this
constitute “added weight Or ballast" in the sense
having heretofore been necessary in order to pre
that this phrase is used in the appended claims.
vent them from rolling on their sides when
It there refers to weight built into or suspended
struck by a breeze or when the surface of the
from the body of the article for the purpose of
water upon which they are ?oating is rough or‘
choppy. Decoys having a concave, bottom, such 30 stabilizing or assisting to stabilize the same, or
ballast disposed within the body as in the hold
as provided by the invention, do not require
of a ship.
weights and ride upright with greater ease
Although soft rubber, a rubber-like composi
and stability than conventional decoys having
tion or other material possessing similar charac
weighted flat bottoms. This concave bottom
teristics is preferably'employed to construct ar
construction is likewise advantageous in chil
dren’s toys and the like which simulate ?sh, wa 35 ticles of the type provided by the invention, they
may within the scope of the invention be made
terfowl, frogs and other animate objects and are
of wood, compressed cellulosic material, such'as
intended to float in water. It applies alike to
papier-maché, pressed fibre board or the like, or
relatively small articles of this class intended
for use in bathtubs, wading pools and the like, 40 of synthetic resins, preferably those of the ther
moplastic variety, and may be either hollow or
as well as ?oats for use at the swimming pool
of substantially solid construction. The material
or beach and su?iciently large and buoyant to
employed must ‘either be non-hydroscopic, at
permit a child to ride thereon.
least to a degree which will prevent the article
Another advantageous feature of the inven
tion resides in constructing the article of such 45 from becoming water-logged, or the article may
be surfaced with a coating of waterproof mate
materials as soft rubber, waterproofed or rub‘
rial, such as, for example, shellac, spar Varnish
berired fabric or the like. Preferably, when con- '
v or one of the many waterproof paints, such as
structed of soft rubber or the like the article is
hollow with walls of such thickness that they
those having a bitumastic, synthetic resin or
may be collapsed but possess sufflcient resilience 60 latex base.
that they will return to their intended shape in
The accompanying diagrammatic drawing il
normal service without the use-of internal air
lustrates a decoy duck embodying the features
pressure or the like. This makes itlpossible to
provided by the invention. It will be understood,
materially reduce the bulk of the article for trans
or course, that the invention is not limited to
portation and storage and materially reduces or
decoys but contemplates other articles of the
pensive to manufacture, light in weight, rugged
eliminates breakage. Such construction is of ma
2,891,476 ~
general class above mentioned embodying some
or all of the features provided by the invention.
Figure 1 of the drawing represents a longi
tudinal section of the decoy duck.
curate explanation of what actually occurs but
the bene?t of the concave bottom, when thus
Figure 2 represents a front view of the decoy
illustrated in Figure 1.
Figure 3 illustrates the approximate shape of V
the decoy when compressed or ?attened for ship
ment or for expelling air from the Space beneath
the concave bottom.
used, is immediately evident when it is attempted
to lift the decoy vertically from the surface of
the water since considerable force is required to
accomplish this.
A suitable anchoring lug 8 having an opening
9 provided therethrough is preferably provided
atone or at each end of the decoy adjacent the
10 bottom edge 5. These lugs, in the case here illus
Referring to the drawing, it will be noted that
trated, are formed integral with 'and are of the
this particular decoy is hollow in construction.
same material as the wall I but they may comprise
The relatively thin walls, which are designated by
lugs, eyes, snaps or the like of metal or other ma
the reference numeral I, are of rubber compound
terial attached to the decoy in any convenient
-or similar .resilient material and may be cast, 15 manner.
These anchoring lugs are not intended
molded. or blown to the desired contour in any
of weights to stabilize the
of several well known manners. The general
decoy or act as ballast, since this is not required,
method of manufacture does not constitute a
but simply provide a means of securing or anchor
novel part of the present invention and a detailed
the decoy in a ?xed location so that it will not
description thereof is not necessary to an un
float away in a current or breeze.
A sum 20
There are, of course, many other speci?c
of reentrant bottom construction which
product is_ employed in the wall structure of the
may be employed within the scope of the in
decoy to insure resilience and preferably clay,
derstanding of the inventive features.
cient amount of latex or any similar synthetic
?brous material or other filler is incorporated
with the latex in su?icient quantities to lend the
walls enough rigidity that the decoy will retain
' its shape in service without resorting to the use
vention in decoys and other articles of the class
above mentioned, but that illustrated is deemed
adequate to teach the practical application of this
' feature of the invention.
The rubber decoy here illustrated is, as pre
viously indicated, adapted to be readily manu
Preferably, a small opening is provided through 30 factured by molding, casting or blowing and,
when formed with an exterior mold, the interior
the wall at some point above the water level to
surface of the latter is preferably roughened in
equalize the air pressure inside the body with
a definite pattern to leave a pattern in the outer
the atmosphere. Such an opening, indicated at 2
surface of the decoy which simulates the wings
in Figure l, is provided in the case here illus
of superatmospheric internal pressure or in?a
trated on the under side of the bill 3 but it may,
when desired, be disposed at any point in the
head, tall or back. This permits air to be forced
and feathers of a duck. To further impart a life
like appearance to the decoy, it may be painted
in colors closely corresponding to those of the
particular variety of waterfowl which the decoy
is intended to attract or suitable pigments for
from the interior of the decoy by pressing against
its sides, forcing it to assume the approximate 40
accomplishing this purpose may beincorporated
shape illustrated in Figure 3. Thus, it may be
in the material of which the walls are com
made to occupy a relatively small space for pack
posed. Ordinarily, the basic or predominant
ing and transportation. _
color of the waterfowl's feathers is incorporated
The decoy is provided with a reentrant or con
cave bottom 4 which preferably is of relatively 45 as a pigment in the latex mixture and its other
colors are painted on or applied with a mask and
large area and extends well up into the body,
after the article is cured. The eyes and
as illustrated. When the decoy is placed on the
water its lower edges 5, where the walls of the 1 bill may be given a natural appearance in the
concave bottom meet the side and end walls, ex
same manner. This method of treatment is also
This causes the decoy to ride upright or on an
It will be apparent that a decoy such as illus
applicable to toy waterfowl, ?sh, frogs and other
tend beneath the surface of the body of water in 50 articles
of the general class contemplated by
which the decoy is floated, sealing the space be
the invention.
neath the concave bottom from the atmosphere.
trated in Figures 1 and 2 may be constructed with
‘even keel and obviates the tendency, common to
?at bottom decoys, to keel over or roll on one 65 walls of relatively rigid, rather than resilient.
material. Also, when desired, it may be of sub
side or the other when they are not weighted.
solid construction, except for the re
Although unnecessary in most instances, even
entrant or concave bottom, in which case the
greater stability in the water maybe achieved
body may be either resilient or substantially rigid
with the concave bottom decoy illustrated by ?at
tening it to approximately the shape illustrated
in Figure 3, holding the lower edges 5 beneath the ‘
surface of the water and then allowing it to ex
pand to normal shape. This forces a large por
tion of the air from beneath the concave bottom
and, upon expanding. water from the surround- I
The invention: also contemplates lining the
walls of a hollow bodied decoy, such as shown in
the drawing, with gum rubber or the like which
will flow into a puncture and seal the same. The
gum rubber liningmay be applied to the entire
interior surfaceof the'walls or only to the con
ing body thereof will be forced up ‘into the space
cave bottom and that portion of the side and end
from which the air has been expelled to equalize
walls which arebeneath and immediately above
pressure in this zone. This is shown diagram
matically in Figure 1 where the surface of the . the water line when the decoy is in use. Such
surrounding water is indicated at 8 and the 70 treatment renders the decoy shotproof or in
other words, will prevent water from leaking in,
higher water level beneath ‘the concave bottom
through a puncture caused by gunshot, in suf?
is illustrated at 1. Water thus enclosed beneath
cient quantities to swamp or sink the decoy and
the concave bottom and held in place by the pres
will. also prevent destruction of the seal, beneath
sure of the surrounding body of water apparently
the concave bottom, by gunshot. This treat
acts as ballast. This may not be an entirely ac
ment is advantageous-regardless of whether the
walls are constructed 0! resilient or'rigid ma
internal and external pressure thereon, the nor
mal shape of the bottom wall being substantially
concave and de?ning a space which extends from
1. A waterfowl decoy having a substantially
the line of juncture of the bottom wall with the
hollow body formed by walls I of material,
such as soft rubberv'composition, possessing sum- i
side walls upwardly to a level above the surface
of a surrounding body of water in which the de
cient rigidity ‘to retain the intended shape 0!
coy is ?oated;
the decoy without in?ation vand su?iciently ~
resilient to ‘permit collapsing the decoy when
‘3. An article of the class described having a
substantially hollow body de?ned by walls of
not in service, said walls including a closed 10 resilient material possessing suiilcient rigidity to
retain their intended shape without in?ation but
bottom of substantially concave contourdeiin
permitting the article to be collapsed when not in’
ing a space of suillcient size to impart ?oating
service, the bottom wall being substantially con
stability to the decoy without the aid of added
cave- and de?ning a space within said body which
weight or ballast;
' ,
2. A waterfowl decoy of substantially hollow 15 is’ entirely con?ned when the article is ?oated
de?ning-walls formed of '
resilient material, such as soft rubber composi
tion, capable of being collapsed and capable of
returning to'normal shapeuponlequalization of a
and imparts ?oating stability thereto without
the use of added weight or ballast.
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