U.S. patent number 3,575,318 [Application Number 04/815,623] was granted by the patent office on 1971-04-20 for water pistol.
This patent grant is currently assigned to Jerome H. Lemelson. Invention is credited to Oskar Kunz.
United States Patent |
3,575,318 |
Kunz |
April 20, 1971 |
WATER PISTOL
Abstract
A toy water pistol having a detachably securable
water-containing cartridge which serves not only as a reservoir for
a substantial amount of water, but also as a biasing means for the
trigger. The cartridge is constituted as a multiply-pleated bellows
which is retained in a simulated barrel portion of the pistol. This
portion is open on one side, permitting the cartridge to be easily
inserted and removed. The forward end of the bellows has an orifice
through which water is ejected when the bellows is compressed by
squeezing of the trigger. A plunger having longitudinally spaced
transverse webs is guided by axially extending, circumferentially
spaced ribs within the barrel.
Inventors: |
Kunz; Oskar (Bergenfield,
NJ) |
Assignee: |
Lemelson; Jerome H. (Metuchen,
NJ)
|
Family
ID: |
25218341 |
Appl.
No.: |
04/815,623 |
Filed: |
April 14, 1969 |
Current U.S.
Class: |
222/79;
222/326 |
Current CPC
Class: |
F41B
9/004 (20130101); F41B 9/0065 (20130101); B05B
11/048 (20130101) |
Current International
Class: |
B05B
11/04 (20060101); F41B 9/00 (20060101); A63h
033/00 () |
Field of
Search: |
;222/79,326,327 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Summer; Leonard
Claims
I claim:
1. A toy water pistol comprising:
a. a body having a hollow barrel portion and a pistol grip portion,
a forward upper end portion of said barrel portion being cut
away,
b. a cartridge including a multiply-pleated bellows to hold water
to be dispensed as a stream when the bellows is compressed, said
cartridge having an orifice at one end for passage of water,
c. the forward end of said barrel portion having means to receive
and removably retain said cartridge with the orifice disposed at
the front end of said barrel portion when the cartridge is
positioned in said forward barrel portion through said cut
away,
d. a plunger having a web transversely of the axis of the barrel to
abut the rear end of the cartridge, and a second web rearwardly
thereof,
e. means to guide said plunger for movement on said axis comprising
axially extending, circumferentially spaced ribs at the rear of the
barrel portion and within the same,
f. means associated with said pistol grip portion to compress said
bellows to discharge water through said orifice,
g. said bellows comprising resilient, but generally shape-retaining
material to normally bias the bellows in expanded condition.
Description
SUMMARY OF THE INVENTION
This invention relates to a toy water pistol having an easily
replaceable cartridge serving as a reservoir for water, thereby
eliminating the need for hermetically sealing components of the
pistol. The cartridge is easily accessible from an open side of the
barrel portion of the pistol, and may be removed, and reinserted,
or replaced with another cartridge expeditiously and without having
to disassemble any parts.
It is a primary object of this invention to provide a new and
improved toy water pistol employing a compressible cartridge to
contain the water.
Another object is to provide a toy water pistol as aforesaid
arranged to eject a stream of water from an orifice at the front
end of a cartridge thereby avoiding the need for precise alignment
and assembly of the parts.
A further object is to provide an improved water pistol having a
minimum number of parts and capable of being molded from plastic
composition at relatively low cost.
Another object is to provide a water pistol employing a
blow-molded, inherently resilient, plastic bellows as a cartridge
for holding a charge of water, the bellows being normally in an
expanded condition and operative, following compression, to exert a
restoring force to bias the squeeze mechanism, e.g. a trigger,
without the need of a separate spring to effect such bias.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a side elevational view with parts broken away to reveal
the internal construction of the pistol;
FIG. 2 is a front elevational view;
FIG. 3 is a cross section taken on the line 3-3 of FIG. 1; and
FIG. 4 is a perspective view of an alternative form of pistol.
DESCRIPTION OF THE PREFERRED EMBODIMENT
FIGS. 1 and 2 show a toy water pistol having a body 11 which is
molded or otherwise formed of two symmetrical shells 12 and 13
joined on a medial vertical plane and shaped to define a pistol
grip 14 and barrel portion 15. It will be understood that the outer
aspect of the gun will simulate to some considerable degree, a
pistol of a conventional type in order to heighten the illusion.
The sides of the barrel are cut away to define an opening 16
providing entrance to a chamber 17 shaped to detachably retain a
cartridge 26. This latter is in the form of a multiply-pleated
bellows, and is preferably blow molded of a resilient, but
generally shape-retaining, plastic material such as medium or
low-density polyethylene and terminates forwardly in a tubular
extension 20 and there is a nozzle 27 in the form of a bushing
press-fitted to the extension 20. An orifice 21 is provided in the
front end of the nozzle 27. The front end of the chamber 17 is
defined by a wall 18 having a U-shaped opening 23 therethrough into
which the nozzle 27 is engaged with a moderate snap fit. By
providing the orifice 21 in a separate part, e.g. the bushing 27,
molding of the cartridge and provision of the orifice is
considerably simplified.
At its rear the chamber 17 slidably receives a skeletonlike piston
31 to transmit the force of the trigger to the inner end of the
cartridge 26. The piston comprises two discs 32,32 guided by a
plurality of ribs 33 formed on the interior of the body and there
are struts 35,36 integral with the discs 32,32. The rear strut 35
spaces the discs and the front strut 36 terminates in a disc 38
adapted to abut the rear face of the cartridge.
Compression of the bellows is effected by means of an actuator 22
simulating a trigger, and is rotationally supported by a pair of
pins 41,41 pivoted in individual bores in the two halves 12 and 13.
The upper end 42 of the trigger 22 engages the rear end of the
piston 31 so that, when the trigger is squeezed, the bellows is
compressed to discharge water through the orifice 21. It will be
apparent that the child may control the extent of squeezing of the
trigger to obtain brief or prolonged discharge of the water.
Further, it will be understood that the cartridge may be filled
while in place or may be readily removed and filled from a tap or
receptacle. If desired the child may have several cartridges
already filled and may load them in the pistol successively without
recourse to a source of water. These additional cartridges may be
carried in pockets in a belt or pouch further to heighten the
child's imagination.
If blow molded of medium or low-density polyethylene or material
having like resiliency, and properly shaped, the multiply-pleated
bellows 26 may be relied upon to exert a force against the end of
the piston 31 of such magnitude as to bias the finger-engaging
portion of the trigger 22 outwardly from the housing as shown in
FIG. 1 so that, following compression of the bellows to discharge a
stream of water and upon release of the trigger, this latter will
be restored to normal, or rest, position by the inherent bias of
the bellows, for subsequent actuation. In the conventional water
pistol, a spring is needed to bias the trigger of the gun to rest
position but, in accordance with the present invention the spring
is eliminated, thereby further simplifying the pistol and reducing
its cost.
FIG. 4 shows a modified form of the invention wherein the pistol is
a one-piece injection molding adapted to receive and retain a
water-containing cartridge of the type described above and shown in
phantom. The pistol 50 comprises a one-piece molding of semirigid
plastic composition such as medium or high-density polyethylene,
polypropylene or other material which has generally shape-retaining
qualities combined with some resiliency. The pistol comprises a
grip 52 having a front portion 53 and a rear portion 54 which are
deformable with respect to each other and the barrel portion 56 by
reason of the necked zones 52a, 53a and 54a. Disposed at the upper
end of the rear portion 34 and projecting forwardly, is a
semicylindrical retainer 57 which is open at the front and closed
at the rear by means of a wall 58. Carried at the top of the front
portion 53 is an extension 61 substantially the thickness of said
portion and formed with an upwardly projecting arm 62 having a
bifurcated formation 63 at its distal end defining a slot 64 to
receive, with a snap fit, the bushing 27 (FIG. 1). If desired the
slot 64 may include ribs 66 for detent-type retention of the
bushing. The rear wall of the bellows abuts the wall 58. The bottom
of the retainer 57 carries a channel 71 mating with the extension
61 for sliding engagement. Accordingly, as the pistol grip
comprising the parts 53,54 is squeezed, the bellows will be
compressed as the parts 61,71 slide on one another. It will be
obvious that the cartridge may be quite easily removed, charged and
reinserted into operative position.
The sliding connection between the parts 61 and 71 may be realized
by using a dovetail formation which is capable of being assembled
with a snap fit to maintain operative relation of the parts.
It will be understood that if the pistol of the invention is to
simulate a weapon with a longer barrel e.g. a rifle, that this may
be done simply by providing the longer barrel and lengthening the
piston 31 to correspond.
In order to increase the velocity of the stream of water the
orifice 21 may take a frustoconical form, with the smaller end
outward.
* * * * *