U.S. patent number 3,571,820 [Application Number 04/734,960] was granted by the patent office on 1971-03-23 for hydromassage bath installation.
This patent grant is currently assigned to Jacuzzi Research, Inc.. Invention is credited to Roy A. Jacuzzi.
United States Patent |
3,571,820 |
Jacuzzi |
March 23, 1971 |
HYDROMASSAGE BATH INSTALLATION
Abstract
A hydromassage bath installation wherein a jet assembly is
mounted in a vertical wall of a bath tank in spaced relationship to
the drain opening, with all flow passages in the circulatory system
being above a drain line valve to assure a sanitary isolation of
the drain line from the circulatory system during use, and further
assure complete emptying of the bath water to the drain line upon
opening of the drain valve.
Inventors: |
Jacuzzi; Roy A. (Oakland,
CA) |
Assignee: |
Jacuzzi Research, Inc.
(N/A)
|
Family
ID: |
24953760 |
Appl.
No.: |
04/734,960 |
Filed: |
June 6, 1968 |
Current U.S.
Class: |
4/541.4; 4/685;
601/157; 4/541.6 |
Current CPC
Class: |
A61H
33/6078 (20130101); A61H 33/02 (20130101); A61H
33/6063 (20130101); A61H 33/0087 (20130101); A61H
2033/0033 (20130101); A61H 2033/145 (20130101) |
Current International
Class: |
A61H
33/00 (20060101); A61H 33/02 (20060101); A61H
33/14 (20060101); A47k 003/00 () |
Field of
Search: |
;4/171,172,173,180
;128/59,66 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Geiger; Laverne D.
Assistant Examiner: Massenberg; Donald B.
Claims
I claim:
1. A hydromassage bath assembly for installation in a system having
a drain line, comprising:
a bath tank having vertical walls and a bottom wall, one of said
walls having an overflow opening, and said bottom wall having a
drain opening, and means for connecting said overflow opening to
said drain line;
a jet assembly mounted in a vertical wall of said tank at a
location spaced from said drain opening, and including a jet
nozzle;
a pump having an intake end and a discharge end;
means flow connecting said pump discharge end along the outside of
said tank to said jet nozzle; and
means for selectively flow connecting said drain opening to said
pump intake end and to said drain line, each to the exclusion of
the other, whereby said pump may circulate the water in said system
to the exclusion of said drain line, or drain to said drain line
along with water from said tank.
2. A hydromassage bath assembly in accordance with claim 1,
characterized by said selective flow connecting means including a
hollow fitting flow coupled to said drain opening, conduit means
flow connected to said fitting for flow connecting said fitting to
said drain line, and a drain valve in the flow passageway formed
between said fitting and said conduit means, and means in a wall of
said fitting above the location of said drain valve, for flow
connecting said drain opening to the intake end of said pump when
said valve is closed, and to permit said pump to drain to said
drain line when said valve is open to flow connect said drain
opening to said drain line.
3. A hydromassage bath assembly in accordance with claim 1,
characterized by a first jet assembly mounted at substantially the
junction of a side and end wall, and a second jet assembly mounted
substantially diagonally therefrom, with the nozzle of each jet
assembly connected to the pump discharge end, and said tank having
its cavity contoured to encourage placing oneself along the other
diagonal.
4. A hydromassage bath assembly in accordance with claim 2,
characterized by all flow passageways between said pump and said
jet assembly being above said drain valve in elevation.
5. A hydromassage bath assembly in accordance with claim 1,
characterized by said means for flowing connecting the pump
discharge end to said nozzle including a pipe connection sloping
upwardly from said pump discharge end to said nozzle.
6. A hydromassage bath installation comprising: a bath tank having
vertical walls and a bottom wall, one of said vertical walls having
an overflow opening, and said bottom wall having a drain
opening;
a jet assembly mounted in a vertical wall of said tank at a
location spaced from said drain opening, and including a jet
nozzle;
a pump having an intake end and a discharge end;
means flow connecting said pump discharge end along the outside of
said tank to said jet nozzle;
a drain line; and
means for selectively flow connecting said drain opening to said
pump intake end and to said drain line, each to the exclusion of
the other, whereby said pump may circulate the water in said system
to the exclusion of said drain line, or drain to said drain line
along with water from said tank.
7. A hydromassage bath installation in accordance with claim 6,
characterized by said selective flow connecting means including a
hollow fitting flow coupled to said drain opening, conduit means
flow connecting said drain line to said fitting and a drain valve
in the flow passageway formed between said fitting and conduit
means, and means flow connecting said pump intake end to said
fitting in a wall thereof at a location above said drain valve.
8. A hydromassage bath installation in accordance with claim 7,
characterized by said jet assembly including a snorkel-type air
intake tube anchored at one end in said jet assembly and having an
exposed end within said tank above expected water level in said
tank during use, and means flow connecting the discharge end of
said pump to said jet nozzle, said means including a pipe
connection sloping upwardly from said pump discharge end to said
nozzle.
Description
My invention relates to hydromassage bath equipment and more
particularly to a hydromassage bath installation and assembly.
In the past, various attempts have been made to convert a
conventional bathtub into a hydromassage bath installation through
the application thereto of a hydromassage system. Such attempts are
exemplified by such patents as C. Jacuzzi, U.S. Pat. No. 3,159,849;
F. Nash, U.S. Pat. No. 3,287,741; C. Jacuzzi, U.S. Pat. No.
3,297,025; Schneider et al., U.S. Pat. No. 3,319,266; and Guiler,
U.S. Pat. No. 3,345,982.
In all these patents, a jet assembly is installed in the available
drain opening of the tub and supplied through the drain opening by
a motor-driven pump located outside of the tub. In the main, an
installation of this kind requires substantial and complex plumbing
fittings and valves to assure sanitary isolation of the involved
drain line from the circulatory system, and if such precautions are
disregarded in an attempt to simplify an installation, such
installation is hardly likely to satisfy the sanitary code
requirements of the various jurisdictions throughout the
country.
Among the objects of my invention are:
1. To provide a novel and improved hydromassage bath assembly;
2. To provide a novel and improved hydromassage bath assembly of
extreme simplicity, and which, in spite of its simplicity, will
satisfy code requirements for sanitary isolation of the drain line
from the circulatory system;
3. To provide a novel and improved hydromassage bath assembly which
is not restricted to bathtubs, but may involve tanks in general,
including those in which the expected water level will be too high
to render a drain opening installation practical;
4. To provide a novel and improved hydromassage bath installation
in which there prevails a normal strong tendency for all water in
the system to empty into the drain line upon cessation of pump
operation and opening of the drain valve; and
5. To provide a novel and improved hydromassage bath installation
requiring no special complex fittings.
Additional objects of my invention will be brought out in the
following description of a preferred embodiment of the same, taken
in conjunction with the accompanying drawings wherein:
FIG. 1 is a three-dimensional overall view depicting a hydromassage
bath installation of the present invention;
FIG. 2 is a plan view of the hydromassage bath installation of FIG.
1;
FIG. 3 is a side view in elevation, of the hydromassage bath
installation of FIG. 1;
FIG. 4 is a view, partly in section, of a jet assembly as installed
in a vertical wall of the tub in the installation of FIG. 1;
and
FIG. 5 is a view in section, taken in the plane 5-5 of FIG. 2.
Referring to the drawings for details of my invention in its
preferred form, the same involves a bathtub 1 having vertical
sidewalls 3, 5 and end walls 7, 9, and a bottom wall 11, one of the
end walls having an overflow opening 13, and the bottom wall having
a drain opening 15.
The bathtub may be of conventional design though I prefer one
having its cavity contoured to suggest placing oneself along a
diagonal, in addition to providing flat surface areas 17, 19 at
diagonally opposite corners along the remaining diagonal.
At each flat surface area thus formed, one may install a jet
assembly 25.
Each such jet assembly may be constructed along the lines of any
one of the various embodiments illustrated in the patent to C.
Jacuzzi, U.S. Pat. No. 3,297,025, and as such, will generally
comprise a housing 27 having an open forward end terminating in a
peripheral flange 29, the housing being inserted through a
correspondingly shaped opening in the wall of the tub, with the
peripheral flange, sealingly engaging the wall of the tub.
The rearward end of the housing is closed except for provision of
passageways 33 and 35 to one of which may be coupled a conduit or
pipe 37 for supplying water to a jet nozzle 39 swivel mounted in
the rear wall of the housing and terminating in a discharge end 41
at the open end of the housing. The remaining passageway 35
provides for air intake to the nozzle.
Anchored at one end to the rear wall of the housing outside of the
tub and in communication with the air passageway to the jet nozzle,
is a snorkel-type tube 45, the free end of which passes through a
proximate point in the tub wall, the end of the tube thus exposed
being internally threaded and provided with an air adjustment means
for controlling the air intake to the jet nozzle during use. Such
air control means may take the form of a hole 49 through the neck
of a screwcap 51 threadedly installed in the exposed end of the
tube.
For details of a construction of the jet nozzle and its swivel
mounting within the housing, reference is made to the
aforementioned Jacuzzi U.S. Pat. No. 3,297,025.
Water to each jet nozzle is supplied by a motor-driven pump 55 of
the impeller type having an intake end 57 and discharge end 59, the
discharge end being connected to each such nozzle by a conduit or
pipe 61 running along the outer side of the tub. The return flow
from tub to the intake end of the pump is by way of the drain
opening and connecting pipe 63, to complete the circulatory system
involving all flow between the pump and the jet nozzle.
Inasmuch as the water in the tub must also flow through the drain
opening to a drain line 65 when one desires to empty the tub upon
completion of a bath, the problem arises of providing means for
selectively connecting the pump intake end or drain line to the
drain opening, each to the exclusion of the other while at the same
time effecting sanitary isolation of the drain line from the
circulatory system when the hydromassage system is in use, to
preclude any possibility of drawing drain water and sediment from
the drain line into the circulatory system while in use.
Toward solving this problem, I provide selective flow connecting
means 67 including a hollow fitting 69 which is coupled to the
drain opening of the tub. At its lowermost end, the fitting is flow
connected to the drain line by a conduit 71 and T-coupling 73, and
controlled by a drain valve 75 in the flow passageway thus formed.
This valve may be manually actuated in the manner of the
conventional drain valve in a bathtub. This may take the form of a
lever 77 mounted in the overflow opening 13, and controlling a
linkage system extending along the conventional overflow tube 79
and the conduit 71 to the valve, the overflow tube being flow
connected to the drain line via the third arm of the
T-coupling.
The pump should be mounted at an elevation above the drain valve
and with its intake or suction line 63 connected to the fitting 69
at a point above the valve also, whereby the entire circulatory
system will be disposed above the drain valve. Thus a complete
emptying of the tub and circulatory system may be effected merely
by opening of the drain valve and such elevational relationship
will further assure the sanitary isolation of the drain line from
the circulatory system, with the drain valve closed and the
circulatory system functioning. Such complete draining of the
system may be enhanced by appropriately sloping flow lines from the
pump discharge end to the jet nozzles.
Should the drain opening 15 be blocked as by a washrag, with the
resulting tendency of the pump suction to lift the drain valve 75,
the air intake via the overflow opening 13 will break the pump
vacuum. Waste water from the drain line cannot be drawn into the
system under these conditions.
It will be apparent that the ability to isolate the drain line from
the circulatory system, in part, has been made possible by removing
the jet assembly from the drain opening and installing the same in
a vertical wall of the tub, whereby the pump no longer has to feed
the jet nozzle through the drain opening, but can now supply the
jet nozzle at an elevation substantially above the drain valve, and
this, in conjunction with the installation of the pump along with
the pump intake flow connection, above the elevation of the drain
valve, will assure complete protection against contamination from
the drain line.
Such arrangement offers the additional advantage that the system of
the present invention may be applicable to tanks in general,
including such tanks wherein the expected water level may be such
as to render impractical, the installation of a jet assembly in a
drain opening in the bottom wall of such tank.
Also by mounting the jet assembly in a vertical wall of a tank, the
system is not restricted to but one jet assembly but may employ a
plurality of such jet assemblies.
The location of the jet nozzle in a recessed housing as disclosed,
and with the air control protruding but slightly from the wall
surface, there is little opportunity for an individual injuring
himself by engagement therewith, and such probability is
essentially eliminated by the contour of the tub being such as to
cause the individual to position himself along the remaining
diagonal of the tub.
From the foregoing description of my invention in its preferred
form, it will be apparent that the same fulfills all the objects
attributed thereto, and while I have illustrated and described same
in its preferred form, the same is subject to alteration and
modification without departing from the underlying principles
involved, and I accordingly do not desire to be limited in my
protection to the specific details illustrated and described,
except as may be necessitated by the appendant claims.
* * * * *