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Патент USA US2117622

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Mag/“17, 1938.
Filed Sept. 25, 1936
Patented May 17, ‘1938
Vincent W. Morton, San Francisco, and Mitchell
F. Schweiger, Berkeley, Calif.
Application September 23, 1936, Serial No. 102,182
1 Claim.
Our invention relates to douche apparatus; and
the broad object of the invention is to provide
apparatus adapted for connection with a source
of water under pressure and having an improved
a nozzle for controlling the ?ow of water, and also
embodying means for medicating the water, and
means for protecting the user against excessive
water temperatures and pressures.
The invention possesses other objects and fea
10 tures of advantage, some of which, with the fore
going, will be set forth in the following descrip
tion of our invention. It is to be understood that
we do not limit ourselves to this disclosure of
species of our invention, as we may adopt variant
embodiments thereof within the scope of the
Referring to the drawing:
Figure 1 is a side view, partly in section and
partly in elevation, showing a douche apparatus
20 embodyingthe improvements of our invention.
Figure 2 is a transverse sectional view showing
the nozzle mounting, taken in a plane indicated
by the line 2-2 of Figure 1; and
Figure 3 is another sectional view‘of the nozzle
25 mounting, taken in a plane indicated by the line
3-3 of Figure 1.
Figure 4 is a transverse sectional view through
the thermostatic valve chamber, taken in a plane
indicated by the line 43-43 of Figure 1.
In terms of broad inclusion, the douche appa
ratus embodying our invention comprises a hol
low handle for receiving water under pressure
and to which a nozzle is pivoted. The nozzle
communicates with the handle, and an arrange
35 ment of ports is provided so that flow of water
to the nozzle is controlled by relative turning
movement between the nozzle and handle. Water
is directed to the hollow handle by a flexible
duct adapted for connection with a source of
40 water under pressure, preferably the bib of a hot
and cold water mixing faucet. Means are also
provided in the apparatus for medicating the
water, and this means preferably comprises a
soluble cake of medicinal material disposed in
4.5 the hollow handle of the nozzle. A thermostati
cally controlled safety valve and a water pres—
sure relief valve are also preferably interposed
in the duct.
In greater detail, and referring to the drawing,
50 the douche apparatus embodying our invention
comprises a nozzle 2 pivotally mounted on a
hollow handle 3 to which a flexible duct 4 is
connected. The duct is provided with a coupler
portion 6 adapted to be slipped over the end of
55 a faucet bib, such as the bib of a hot and cold
(01. 128-—251)
water mixing faucet, so that water at a desired
temperature is supplied under pressure to the
Means associated with the pivot connection be
tween the nozzle 2 and handle 3 is provided for
controlling the flow of water. As shown in Fig
ure 3, the nozzle is provided with a tapered plug
portion 1 seated in. a complementary tapered
socket 8 opening out at one side in the lower end
of the elongated handle 3. ‘The pivot mounting 10
is completed by a pin 9 passing through the parts,
and the plug 7 is held ?rmly seated in the socket
by a spring ll encircling the pin. Communica
tion between the handle and nozzle is effected
by a passage l2 in the lower end of the handle H Or
and opening out into the socket, and a passage
H in the nozzle ported out on the tapered plug
and adapted to register with the passage l2.
These two- passages provide communication be
tween the handle and nozzle when the latter is
in the operating position extending outwardly
from the handle, as shown in Figure 1.
In this
operative position the nozzle performs its func
tion of irrigating desired areas. When the ports
are not in register the flow of water is cut off,
and this valve action provides convenient means
for closing the nozzle when flow is not desired,
as when the device is being carried across a room
or when the nozzle is being inserted. In order
to permit adjusting the nozzle in its extended 30
or operative position, without cutting off the flow
of water, the port in the handle is preferably
elongated so that the nozzle port will remain in
registration over a predetermined arc of nozzle
movement. Preferably this are is between the 45‘5
and 90° positions of the nozzle from the handle.
Another feature of the construction is the pro
vision of a second passage M in the nozzle, adapt
ed to register with the handle passage II when
the nozzle extends downwardly for purposes of
draining the handle. Suitable stops “5 are also
preferably provided on the handle and nozzle to
limit the latter when the drain passage is in
Means are also provided in the apparatus for
medicating the water discharging from the nozzle.
For this purpose a cored cylindrical cake I‘! of a
soluble medicinal material is provided in the cy
lindrical barrel formed by the tubular handle 3.
This cake may be of any suitable composition, 50
and is designed to medicate the water as the lat
ter washes through it. Additional cakes may be
supplied in separate packages for replacements
when a cake in the apparatus is used up.
shown in Figure 1, the cake I‘! is sized to fit the 55
tubular body of the handle, and rests upon a
screen l8 disposed in the bottom of the handle
The upper end of the handle is provided. with
a threaded cap l9, and a gasket 2| is interposed
between these parts to insure a tight joint when
the cap is- screwed down.
A neck 22 on the cap
provides a convenient connection for the ?exible
duct 4.
Means are also preferably provided in the ap
paratus for automatically closing the duct should
the wateraccidently become too hot. For this
purpose a chamber is interposed in the duct
system, preferably between the coupler portion
r 6 and the main duct 4, and comprises an upper
portion 23 having a tube engaging neck 24, and
a lower portion 26 having an oppositely disposed
neck 2'! for receiving the tube 4. The two halves
of the chamber are threaded together and sealed
by suitable gaskets 28. A valve 29 is slidably
mounted in the discharge opening at the lower
end of the chamber, and is controlled by a bi
metallic strip or diaphragm 30 having its ends
clamped between the halves of the chamber.
The normal position of this diaphragm is
shown in Figure 1, with the valve open; and when
the water exceeds a predetermined temperature
the diaphragm snaps down, closing the valve.
This automatic control therefore prevents injuri
30 ously hot water from reaching the nozzle 2. In
order to protect the diaphragm from the im
pingement of incoming water, a baffle plate 3! is
arranged over it and is also held between the
‘halves of the chamber. Both the baiile plate and
diaphragm are provided with annular flanges 32
for clamping between the chamber portions, and
a ring 33 is disposed between these ?anges for
spacing the ba?ie plate above the diaphragm.
Means are further preferably provided for pre
venting undue water pressure at the nozzle. This
protective device is also mounted on the chamber
23, and comprises a spring pressed valve 34 con
trolling an opening in the side wall of the charm
her. The spring 35 of the valve is compressed
against a cap 36 threaded on a boss 3'! of the
chamber; this boss having a slot 38 to provide
an outlet. Spring 35 is preferably carefully ad
justed at the factory, and is ?xed in adjustment
by tightly screwing on cap 36 to discourage tam
pering. The loading of this spring is preferably
50 equivalent .to about the pressure of a three foot
water head on the valve, or other safe pressure
for douche purposes.
In designing the valve chamber, the outlet
opening in neck 21 is made larger than both the
inlet opening in neck 24 and the pressure relief
opening controlled by valve 34; and the relief
opening is made larger than the inlet opening.
This permits free ?ow of water through the
chamber when relief valve 34 is closed, and also
allows the relief opening to amply take care of 10
the discharge when valve 29 is closed.
In preparing the apparatus for use, the valve
at the nozzle is closed and the hot and cold water
faucets are adjusted to give the desired tempera
ture and ?ow of water. Safety valve 34 will of
course open with the nozzle closed, and the ?ow
of water can be observed by the discharge through
outlet 38. The flow should be such that water
runs easily out of the opening, without spurting.
When the nozzle is subsequently opened the
safety valve 34 will close and the water discharge
through the nozzle. If at any time the pressure
in chamber 23 exceeds the loading pressure of
valve 34 the latter will open, thus protecting the
user against dangerous pressures that might ac 25
cidently occur. Valve 34 also operates as a dis
charge valve when the thermostatically controlled
valve 29 closes, and prevents the heavy line pres
sure from building up in the chamber.
The various parts of our apparatus, such as the 30
chamber 23, handle 3, and nozzle 2, may be
molded of any suitable material. A condensa
tion product, such as bakelite, is preferably used
however because of its durability and good ap
pearance. The several elements of the appara- '
tus including the rubber tubes 4 and 6 are readily
packaged and require little space for storage. A
feature contributing materially to the compact
ness of the structure is the pivoted arrangement
of the nozzle, since it collapses against the handle 40
3, as indicated by the dotted lines in Figure 1.
We claim:
A douche apparatus comprising a hollow han
dle having a discharge port, and a nozzle pivot
ally mounted on the handle and having a passage
with a port adapted to register with said handle
port, one of said ports being elongated to allow
registration of the ports in a plurality of posi
tions of said nozzle.
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