U.S. patent number 3,890,655 [Application Number 05/392,046] was granted by the patent office on 1975-06-24 for whirlpool jet for bathtubs.
Invention is credited to Cleo D. Mathis.
United States Patent |
3,890,655 |
Mathis |
June 24, 1975 |
Whirlpool jet for bathtubs
Abstract
A whirlpool jet outlet for bathtubs, therapy tanks, swimming
pools and the like. A housing has a hollow interior chamber. A
water inlet supplying water under pressure is connected through one
side of the housing to the inner end of the chamber. A Venturi air
inlet is connected to the inner end of the chamber to speed the
flow of water through and out of the chamber. A water outlet is
screw threadedly mounted in the front of the chamber. The housing
extends through an opening in the side of the tub, the water outlet
being substantially flush with the inside of the tub. The wall of
the tub is gripped between the water outlet and the housing. A jet
outlet control is mounted for rotation by a coin or the like within
the water outlet to control the direction of water flow into the
tub.
Inventors: |
Mathis; Cleo D. (South El
Monte, CA) |
Family
ID: |
23549032 |
Appl.
No.: |
05/392,046 |
Filed: |
August 27, 1973 |
Current U.S.
Class: |
4/541.6; 601/169;
261/DIG.75 |
Current CPC
Class: |
A61H
33/027 (20130101); B05B 7/30 (20130101); A61H
33/6063 (20130101); F04D 35/00 (20130101); A61H
33/6052 (20130101); Y10S 261/75 (20130101) |
Current International
Class: |
A61H
33/02 (20060101); B05B 7/30 (20060101); B05B
7/24 (20060101); F04D 35/00 (20060101); A47k
003/10 () |
Field of
Search: |
;4/180,181,173,178,1
;138/40,39,41-46 ;128/66 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Artis; Henry K.
Attorney, Agent or Firm: Comstock; Robert C.
Claims
I claim:
1. A whirlpool jet for bathtubs and the like comprising a housing,
a chamber formed within said housing, a water inlet connected at
one end thereof to a source of water supply under pressure and at
the opposite end thereof to the inner end of said chamber, a
Venturi air inlet extending through said housing to the inner end
of said chamber, whereby the movement of water through said chamber
is speeded by a Venturi effect, a water outlet extending through a
circular opening in the wall of the bathtub, said water outlet
being threadedly mounted within the outer end of said chamber, said
water outlet having an annular radial flange, said flange having an
inner surface abutting against the inside of the bathtub wall, said
housing having a flat outer end abutting against the outside of the
bathtub wall, said water outlet having an annular groove formed
therein adjacent to said flange, a resilient O-ring bushing mounted
in said groove, said bushing making sealing engagement with the
inner edge surface of said opening, the bathtub wall upon
rotational tightening of said water outlet with respect to said
housing being held between said flange and said housing to mount
said jet on the bathtub without any fastening members being
connected to the bathtub, the threaded engagement between said
water outlet and housing providing automatic adjustment of said jet
to fit various thicknesses of bathtub walls.
2. The structure described in claim 1, said flange being thin and
comprising the only portion of said jet disposed on the inside of
said bathtub, said flange fitting substantially flush with the
inner wall of said tub to prevent injury by occupants of the tub
falling and striking against said jet.
3. The structure described in claim 2, and a jet outlet control
threadedly mounted within said water outlet, said control having an
angularly directed water passage extending therethrough, said
control being rotatable with respect to said outlet to control and
change the direction of water flow into said bathtub from said
jet.
4. The structure described in claim 3, said control having a pair
of diametrically spaced slots on opposite sides of the control
opening, said slots being adapted to receive a coin or the like to
rotate said control.
5. The structure described in claim 4, said flange having a pair of
diametrically spaced circular openings extending inwardly from its
outer face to accommodate a wrench for use in rotating said water
outlet with respect to said housing in mounting said jet on a
bathtub.
6. The structure described in claim 2, said source of water supply
comprising a water inlet pipe connecting with an inlet passage
extending transversely into the side of said housing inwardly from
the end thereof, said inlet pipe also being disposed inwardly from
the end of said housing toward the wall of the bathtub.
7. The structure described in claim 6, said passage extending
completely through said housing, and an outlet pipe connecting the
opposite end of said passage with at least one additional housing.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a whirlpool jet outlet for bathtubs which
may also be used in therapy tanks, therapy pools, swimming pools
and the like.
2. Description of the Prior Art
There are a number of whirlpool jet outlets and outlet structures
on the market at the present time, all of which are relatively
complex in their structure, installation and operation. They are
not readily adaptable to various types of installations and
environments. The water outlets of such devices customarily
protrude a substantial distance into the bathtub, which is
unsightly, is likely to result in accidents and injury and is
generally undesirable.
SUMMARY OF THE INVENTION
The present invention provides a whirlpool jet which is an
improvement over the prior art because of its extreme simplicity of
structure, installation and operation.
Another advantage of the invention is that the structure is compact
and the outlet does not protrude a substantial distance into the
tub or tank.
The invention provides a whirlpool jet outlet which can be equally
and easily installed on any existing tub, tank or pool. It is
universal and is automatically self-adjusting to varying
thicknesses of wall structure.
Because of its simplicity of structure, installation and operation,
it is more economical than existing devices and can be
manufactured, sold and installed at a substantially low price.
It is accordingly among the objects of the invention to provide a
whirlpool jet outlet for bathtubs and the like having all of the
advantages and benefits set forth above and which are provided by
the structure described in detail hereinafter in this
specification.
The invention also comprises such other objects, advantages and
capabilities as will later more fully appear and which are
inherently possessed by the invention.
While there are shown in the accompanying drawings preferred
embodiments of the invention, it should be understood that the same
are susceptible of modification and change without departing from
the spirit of the invention .
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top plan view showing the whirlpool jet outlet in use
on a bathtub;
FIG. 2 is an enlarged vertical sectional view of the same taken on
line 2--2 of FIG. 1;
FIG. 3 is a front elevational view of the same taken on line 3--3
of FIG. 2;
FIG. 4 is a partial sectional view similar to FIG. 2 of a first
alternative embodiment of the invention;
FIG. 5 is a partial sectional view similar to FIG. 2 of a second
alternative embodiment of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A first preferred embodiment which has been selected to illustrate
the invention comprises a main body member or housing 10. The
housing 10 is provided with a water inlet pipe 11, one end of which
may be soldered or otherwise attached to the side of the housing
10. The other end of the water inlet pipe 11 is connected to a
suitable source of water supply under pressure. The water inlet
pipe 11 connects with an inlet passage 12 which extends
transversely into the side of the housing 10 past the longitudinal
axis of the housing 10.
Connecting with the inner end of the inlet passage 12 is an axial
bore 13 which extends forwardly substantially along the
longitudinal axis of the housing 10 to an open ended chamber 14 of
substantially larger diameter.
The air inlet tube 15 has one end thereof soldered or otherwise
connected to the top of the housing 10. The opposite end of the air
inlet tube 15 is vented to the atmosphere. The air inlet tube 15
connects with a Venturi air inlet passage 15a which extends
downwardly from the top of the housing 10 to the inner end of the
chamber 14, directly above the termination of the axial bore
13.
A water outlet 16 has an exteriorly threaded shank 17 which extends
into and engages internal screw threading which extends around the
interior periphery of the chamber 14 for its entire length. The
shank 17 has an unthreaded hollow interior 18 which extends
completely through the shank 17. Both ends of the interior 18 are
open. Rotatably mounted within the outer portion of the hollow
interior 18 is a substantially cylindrical jet outlet control 19.
The outer end of the outlet control 19 buts against a radial wall
20 which is disposed adjacent to the outer end of the interior
18.
The jet outlet control 19 is provided with an angularly directed
water passage 21, which extends completely through the control 19.
The inner end of the control 19 has a flat radial wall 22 extending
completely around its periphery except for a cut away portion
forming the inner end of the passage 21. An elongated coil spring
23 is mounted between the wall 22 of the control 19 and the inner
end of the chamber 14. The coil spring 23 constantly urges the
control 19 outwardly and maintains it in any rotational orientation
to which it may be moved.
The outer end of the outlet 16 has a wide annular radial flange 24.
The exterior of the shank 17 adjacent to the inside of the flange
24 is provided with an annular collar 25 of substantially equal
diameter with the threading of the shank 17. An annular groove 26
is disposed between the collar 25 and the threading of the shank
17. A bushing 27 is mounted within the groove 26.
The outer face of the water outlet 16 is flat, except for an
annular inwardly bevelled portion 28, which surrounds the outer end
of the control 19.
In use, the device may be installed on a side or end wall 29 of a
bathtub, tank or pool by drilling a 1 inch hole through the wall
29. The shank 17 of the outlet 16 is mounted so that it extends
completely through the wall 29. The outlet 16 is disposed on the
inside of the wall 29 and the housing 10 is disposed on the outside
of the wall 29.
The shank 17 is threadedly engaged with the threading on the
interior of the chamber 14 of the housing 10 until the wall 29 is
disposed between the flat inner face of the flange 24 and the flat
outer end 35 of the housing 10, which surrounds the outer end of
the chamber 14. The flange 24 may be provided with a pair of
diametrically spaced openings 30 to accommodate a wrench for use in
rotating the outlet 16. The inner end of the housing 10 may be
provided with a pair of diametrically opposed flattened portions 31
to accommodate a wrench or other tool.
When the outlet 16 and housing 10 are brought into tight engagement
with the opposite sides of the wall 29, the bushing 27 forms a
sealing engagement with the inside of the wall 29 surrounding the
opening therein, to prevent water leakage. The outer flat face of
the control 19 is provided with a pair of diametrically spaced
slots 32 which are adapted to receive a coin or other suitable
operating member for the purpose of rotating the control 19 within
the outlet 16 to control and change the direction of movement of
water flowing out of the control 19. The bevelled portion 28 on the
outer face of the outlet 16 facilitates access to the slots 32.
When the water inlet pipe 11 is connected to a suitable
conventional source of water supply under pressure, the water flows
through the inlet passage 12 into the axial bore 13 and then into
the chamber 14. Passage of the water through the chamber 14 under
pressure draws air into the chamber 14 through the air inlet
passage 16 by Venturi action. Water from the chamber 14 passes with
substantial pressure, augmented by the Venturi action, through the
passage 21 of the control 19 into the tub or tank.
The direction of the jet water flow may easily be changed by merely
rotating the control 19 within the outlet 16 in the manner
described above. The control 19 is freely rotatable, but is held by
the spring 23 so that it will maintain any rotational orientation
to which it is moved.
The device can be used in any tank or tub wall through which an
opening of 1 inch diameter can be drilled, with room on the
opposite side of the wall to accommodate the housing 10.
It should be noted in particular that no faucets, balls, jets or
other outlet devices protrude into the bathtub or tank. The only
portion of the device which extends inwardly from the wall 29 is
the flange 24 of the outlet 16. It is flat and only a small
fraction of an inch thick. It cannot cause any personal injury and
is not unsightly.
FIG. 4 of the drawings shows an alternative embodiment of the
invention in which an alternate form of outlet control member 19a
is screw threadedly mounted within the outer end of the shank 17a.
This eliminates the necessity of using a coil spring and the
control 19a can be rotated and will maintain its rotational
position through frictional engagement of the threading which is
augmented by the force of the water passing through it.
For a more economical structure, the control member 19 may be
completely eliminated, as shown in FIG. 5 of the drawings. The
interior of the shank 17b is hollow and smooth. Water passes
through it and is projected straight out into the tub or in any
other fixed direction for which it may be constructed.
Instead of the flange 24 being round, with openings 30 to
accommodate a wrench, it may be formed with an irregular periphery
which accommodates use of a wrench or other tool. FIG. 5 of the
drawings shows an hexagonal flange 24b as merely one possible
alternative configuration. It should be understood that both of
these alternative structures are illustrated in FIG. 5 for
convenience for installation only and they obviously may be used
independently of each other.
It should be noted that the device of the present invention
requires no screws or other fastening members to be attached to the
tub.
The device may be made in various sizes, the one inch size referred
to herein being selected for purposes of illustration.
The passage 12 might extend completely through the housing 10, with
an outlet pipe 11a corresponding to the inlet pipe 11 being
connected to the opposite side of the passage 12. This arrangement
could be used to connect a plurality of outlets in series.
* * * * *