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Патент USA US3020579

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Feb. 13, 1962
R. B. COTTING
3,020,561
BATHTUB CONSTRUCTION
Filed Sept. 2, 1958
3 Sheets-Sheet 1
i ;.i i
2
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INVENTOR;
P0372219 60571229.
Feb. 13, 1962
R. B. COTTING
3,020,561
BATHTUB CONSTRUCTION
Filed Sept. 2, 1958
3 Sheets-Sheet 2
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INVENTOR.
Faye/152 670 iii/7g,
Feb. 13, 1962
R. B. COTTING
3,020,561
BATHTUB CONSTRUCTION
Filed Sept. 2, 1958
3 Sheets-Sheet 3
INVENTOR.
Raye/i (bx/airy
I
ice
E?ZiLS?l
Patented Feb. 13, 1962
2
3,020,561
BATHTUB CONSTRUCTION
Roger
Cotting, Rte. 1, Box 41C, Sarasota, Fla.
Filed Sept. 2, 1958, Ser. No. 758,442
6 Claims. (Cl. 4-173)
This invention relates to bathtubs, and more particu
larly to an improved tub of standard size and contour
constructed to ?t into and be installed in bathrooms of
without in any way sacri?cing the durability, appearance‘
or utility of the tub.
Brie?y, according to the present invention, a tub por
tion is provided around its top with a continuous rim
capable of being joined to, trimmed by, or inter?tted with
wall tiling. The shape of the rim, which is explained
hereinafter, enables installation under a large variety of
tiling conditions and, as a result, tiling which is added
about the tube to mask the sides of the tub or to support
many different con?gurations.
the tub in one or more walls may be extended to vary
For many years, bathtubs have been fabricated each
as a complete unit, usually on legs or pedestals, and hav
ing aprons to provide a ?nished appearance for those
sides of the tub which are not masked by the walls of
the dimensions of the complete built-in bathtub. In other
words, while the tub itself remains a standard size, the
recesses or the islands built of tile to receive the tub may
be of many varied lengths, widths, heights and shapes
the bathroom. Necessarily the tubs have been made in 15 and, accordingly, enable limitless freedom to the designer
a variety of shapes and forms to meet the needs for vari
ation in sizes and shapes of the bathrooms. For exam—
ple, bathtubs are now made as right hand, left hand, re
cessed corner (right hand and left hand) and island tubs
in order to meet the requirements of the designer, archi 20
tect and consumer; but even so, these are not su?icient.
Obviously, this multiple variation in tub design has
increased the cost of manufacture. Architects have found
these tubs to be a hindrance to the design of pleasing
or architect in his accomplishment of more handsome,
efficient and intriguing bathroom arrangements.
The novel features that are considered characteristic
of the invention 'are set forth with particularity in the ap
pended claims. The invention itself, however, both as
to its organization and its method of operation, together
with additional objects and advantages thereof, will best
be understood from the following description of speci?c
embodiments when read in connection with the accom
'rooms because of the necessity to ?t the rooms to the 25 panying drawings, wherein like reference characters indi
dimensions of the available tubs which limit freedom
cate like parts throughout the several figures and in which:
of use. Certain bathtubs have been suggested which
FIG. 1 is a perspective view of a standard tub unit ac
would ?t right or left hand plumbing, right hand or left
cording to the invention installed at an elevated or raised
hand corners or recesses. Even these, however, only
position in a three-wall recess considerably longer than
partially accomplish complete freedom of use and the 30 the tub;
design of bathrooms about these tubs is still limited by
FIG. 2 is a side elevation of the tub unit alone before
the size of the tub.
application of tile walls;
Having in mind the defects of prior art bathtubs, it
FIG. 3 is an end elevation of the tub unit shown in!
is the principal object of the present invention to obvi
FIG. 2;
ate the foregoing disadvantages and to provide a single 35
FIG. 4 is a plan view of the tube unit shown in FIG. 2;
standard bathtub unit adaptable for all types of con
FIG. 5 is an enlarged vertical sectional view taken
struction.
A
through the tub and wall against which it is installed sub
A primary object of the invention is to provide a bath
stantially on line 5—5 of FIG. 1;
.
tub in a single design or model which will interchange
FIG. 6 is an enlarged fragmentary vertical sectiona
ably ?t either right hand or left hand installations, and
view taken on line 6—6 of FIG. 1;
which may be installed in right or left hand corners and
FIGS. 7, 8, 9, 10, 11 and 12 are enlarged fragmentary
may be recessed, raised, or sunken, or installed as an
sectional views similar to FIG. 6 but illustrating different
island; regardless of the dimensions of the bathroom or
types of joints which may be used to connect the stand
alcove in which installed.
ard tub unit to adjacent tile walls or to walls built about
' Another important object of the invention is to pro 45 the tub for masking purposes;
vide a standard bathtub unit of universal application
FIG. 13 is a perspective view of the standard tub unit
which will permit the tiling of Walls in a bathroom in
installed in a right hand corner at normal height, and
which the unit is installed to mask or trim one, two, three
FIG. 14 is a perspective view of the standard bathtub
or four sides of the tub, eliminating the need for vari
unit installed in sunken position with its sides joined to
ation in the standard unit and the need for additional ap
one wall and the ?oor of a bathroom.
pendages such as skirts or aprons to mask the sides of
Referring now to the drawings, a standard tub unit 10
the tub.
according to the invention is shown in FIG. 1 installed in
A further object of the invention is to provide a stand
ard bathtub unit having a rim capable of jointing with
a left hand corner of a bathroom alcove at an elevation
standard tile construction walls to form a tile trim about 55 raised above normal, the alcove being considerably longer
than the tub. The standard tub unit 10 is provided
such rim in different ways, in diiferent positions and un
around its top with an outwardly turned rim 12 extend
der various tiling conditions.
A still further object of the invention is to provide a
standard bathtub unit having a plurality of optional sup
ing completely around its perimeter and desirably rec
and adjustable legs to vary the height of the installed
-tub, the combined rim and body supports enabling the
12. The foregoing dimensions are particularly adapted
tangular in form. The tub 10 may be of any suitable
port means including a support ?ange on the rim of the 60 length and width, and it is preferred to make the standard
tub and additional support sockets on the body of the
unit approximately 5 feet long and approximately 2 feet
tub, the latter being capable of receiving different height 6 and % inches wide overall dimensions over the tub rim
for installation with standard 4%"X41A" tile.
distribution of the tub weight to both the walls and the 65
The tub 19 itself is shaped in the usual manner, as best
floor of the room in which the tub is installed.
shown in FIGS. 2-4, with a considerable slope at one end
A further object of the invention is to provide ?ange
and a rather steep slope at the opposite end adjacent the
surfaces or their equivalent on the rim of the tub for the
drain opening 14. In the wall, at the latter end, an over
attachment of a suitable base for tiling a skirt over any
70 ?ow opening 16 is provided. The cavity of tub 10 may
exposed side of the tub.
be shaped according to the usual practice with inner wall
Yet another object of the invention is to effect consid
surfaces that slope inwardly and downwardly and with
erable economies in the cost of production and installation
3,020,561
3
rounded corners merging into each other, and with a bot~
tom that merges into the side walls.
The tub proper is a unitary body preferably formed of
be used, is then applied to the recess rear Wall 15, the
lower course of which bonds to the upstanding ?ange 20.
The tiles 40 of the lower course are positioned Within
?ange 20 and in a tile-setting bed 36 mounted on lath 38
secured to studs 37. A thin layer 41 of grout seals the
space between the bottoms of tiles 40 and the top of
cast iron and coated on its interior with porcelain or other
suitable surface to provide a dense, smooth and water
proof internal ?nish. The bottom and side outer surfaces
of the tub body, all of which will be masked in the instal
lation of the tub, may, however, be left quite rough and
un?nished.
A
ceramic tiles but obviously tiles of other materials may
rim 12.
At one end wall of tub 10, the bottom edge 22 of
tub rim 18 may rest on a plywood form, such as 42 in
The treatment of these surfaces of the tub
forms no part of the present invention and may be ac
FIG. 6, over which is applied the tile-setting bed 43.
To seal and trim the tub ?ange 12 at this end of the
tub, a course of standard ?anged tiles 44 having one
edge portion downwardly turned is ?tted with the down
complished by resort to practices and principles well
known in the art of casting or making bathtubs.
The tub rim 12 lies in a substantially horizontal plane
and the outer edges of the rim form the sides of 2. rec
tangle having square corners. This enables the tub to ?t 15 ward tile edges positioned within the upstanding ?ange
20 and bonded to the rim by a layer 41 of grout. This
against one wall, in a corner, in a three-wall recess of tub
provides
an attractive trim and watertight seal to the
length, or in a position with an adjacent ?oor area sub
rim 12 at the end of the tub which exactly matches the
stantially level with the rim 12, or any combination
tile seal at the inner side of the tub. The remainder of
thereof, whichever is desired. In all of these instances,
the
ledge between the tub 10 and wall 13 of the recess
20
except when disposed as an island tub, the sides of the
shown in FIG. 1 may be tiled in with standard ?at
rim 12 abutting a wall will be joined to the wall, and the
tiles 40.
remaining open sides will be masked by tile walls or ?oor
The ?anged tiles 44 may also be placed and bonded
over rim ?ange 20 at the side of the tub opposite wall
are made alike and the two end walls are also similar so 25 15 of the recess. These tiles are bonded to upstanding
tiles 40 forming a wall to the elevation of tub rim 12
that the tub body can be reversed from the position shown
which masks the front side of the tub. The recess end
in FIG. 1 to that, as for example, shown in FIG. 13.
wall 17, against which one end of the tub 10 abuts, is
Spaced inwardly a short distance from the edge of rim
also tiled with ?at tiles 40 in the manner shown in FIG.
12, preferably about the thickness of a standard tile, is
an upstanding ?ange 20 preferably at right angles to the 30 5 to seal the tub rim in the same manner as explained
for wall 15. In this manner, all parts of the tub are
upper face of the rim 12. Flange 20 is also preferably
masked
by standard tile with the exception of the in
continuous about the complete perimeter of the tub and
terior of the tub cavity and the upper surface of rim 12
extends upwardly only a short distance, about t716 inch
constructed from the floor or a wall to surround them
and inter?t with the rim. Two sides walls of the tub 10
or slightly more than the thickness of a standard wall tile.
The rim 12 is turned downwardly at right angles at its
outer edge in a short ?ange 18 which may extend about
the entire perimeter of rim 12. The downturned ?ange
18 has a lower edge 22 parallel to the upper face of rim
12 and adapted to support the tub on a ?oor, a wall cleat
or the like.
within the upstanding ?ange 20.
35
The use on the standard tub of the horizontally ex
tending rim 12 with the upstanding ?ange 20 and the
downturned ?ange 18 lends itself to different tiling meth
ods and conditions some of which are illustrated in FIGS.
7 through 12.
,
In FIG. 7, the tile 40 is positioned to rest on the
?ange 20 with its glazed surface in line with the inner
surface of such ?ange. In this illustration, the outer
face of downturned ?ange 18 is abutted against a block
ing member 46 fastened to the studs 37. The tile 40 is
Thus, the outer surface of ?ange 18 may position the
tub for installation against a side wall, while the lower
edge 22 may partially or wholly support the tub. A
plurality of slots 24, about % by 3/16 inch, are formed or
again set in a cement bed 36 set on the lath 38. The
cut in all sides of the downturned ?ange 18 and extend 45 layer 41 of grout is applied between the top of ?ange
upwardly from the lower surface 22. The slots 24 are
20 and the lower edges of the bottom course of tiles.
preferably spaced equally and approximately 6 inches
FIG. 8 illustrates the bonding of tile to the outer side
apart for the purpose of receiving, positioning or sup
of the upstanding ?ange 20. Atlhough ?at tile could be
porting bolts 64, as best shown in FIGS. 11 and 12.
used for this purpose, a ?anged tile 48 is shown set in
On the outer side walls of the tub body 10, four sleeve
a setting bed 50 mounted on lath 38 and resting on
like supports 26, each having a socket or bore 29, are
blocking member 52 which spaces ?ange 18 from the
formed, or secured as by welding, on the tub body 10,
studs 37.
as best shown in FIGS. 2, 3 and 5. These supports are
FIG. 9 illustrates a tiling condition or method which is
positioned near the end walls of the tub. The bottom 55 suitable for installing sunken or recessed tubs as an al
edges 27 of members 26 are adapted to function as feet
ternative to the arrangement shown in FIG. 6. Here, the
to support the tub at normal level since they extend a
short distance below the tub bottom. When it is desired
to support the tub from the ?oor at an elevated or raised
bottom edge 22 of tub ?ange 18 rests on a plywood form
54 to partially support the tub. A tile-setting bed 56 is
laid on form 54 and standard ?at tile 40 is laid in this bed
position, pipelike legs 30 may be inserted into the bores 60 with the edge of its ?rst course adjacent the outer face of
29 of the sleeves 26 for a distance of about 6 inches
rim ?ange 20. In this instance, a thin layer 41 of grout sets
where they bear against the bore end faces 28. Pipes 30
and seals the adjacent tile edges to the outer face of
are threaded at their lower ends 34 into openings in base
?ange 20.
members 32. The threads permit a slight adjustment
FIG. 10 illustrates a tiling method or condition similar
of the length of the legs 30 and leveling of the feet or
to that of FIG. 9 but in which the tub is sunken in a con
base members 32. Obviously, the legs 30 may be of dif
crete ?oor 58 with the bottom edge 22 of tub ?ange 18
ferent lengths to selectively support the tub 10 at a desired
resting on the concrete. A setting bed 56 for tile is laid
elevation.
above the concrete, and the tiling comprising ?at tiles 40
Referring to FIGS. 1, 5 and 6, it will be apparent that
is bonded to the outer face of ?ange 20 and approxi
the standard tub 10, when installed in a lengthened re 70 mately level with the ?ange top.
cess, at a raised elevation, may be supported at the appro
FIG. 11 shows the ?ange 18 of the standard tub butted
against a vertical plywood form 62 to which it is secured
priate level from the ?oor by means of the legs 30 with
by means of bolts 64 passing through the slots 24. A
one outer side of rim ?ange 18 secured to, as by bolts 64
course of curved tiles 60 is bonded to the outer side of up
or other hangers, and resting directly against the stud
line .37 of the rear wall of the recess. Tiling, shown as 75 standing ?ange 20 and set in a cement bed 66 which ex
3,020,561
6
tends vertically along form 62" and horizontally above
variety of installations, locations and tiling conditions
this form to rim 12.
In the tiling method or condition illustrated in FIG. 12,
a vertical stand of rib lath 70 is secured to the inner sur
face of the ?ange 18 by means of the bolts 64 passing
through the slots 24. The cement tile-setting bed 68 is ap
plied to latch ‘70 and the ?anged tiles 44 are laid on this
bed and bonded to the outer surface of upstanding ?ange
20.
which are possible with the standard tub unit described.
The elimination of skirts or aprons to mask the tub, and
the need for only one standard size and design of tub
rather than many tubs of different con?gurations and
dimensions to ?t different locations will permit consider
able economy in the production of the tub and its in
stallation, factors which add to the desirability of the
invention by lessening cost while increasing the freedom
Still other tiling methods and conditions are possible 10 of use.
and appropriate for use with the standard tub of this in
Although certain speci?c embodiments of the invention
vention. The positioning and dimensions of the ?anges
have been shown and described, it is obvious that many
20 and 18 are such as to permit a variety of tiling condi
modi?cations thereof are possible. The invention, there
tions, only some of which are illustrated. Standard tiles
fore, is not to be restricted except insofar as is neces
in common supply in the building industry and measuring 15 sitated by the prior art and by the spirit of the ap
pended claims.
4%" by 4%" and 1A" or 5/16" thick may be used without
cutting to trim the tub at its rim. Other size tiles may
What is claimed and desired to be secured by Letters
also be used.
Patent is:
The position of ?ange 20 spaced inwardly from the
1. A standard bathtub, adapted to be installed in any
outer edge of the rim approximately the thickness of the 20 location in a room, comprising a tub body having a
cavity and an outturned rim lying substantially in a hori
tile and extending upwardly about the same distance as
zontal plane, said rim enclosing the perimeter of the
the tile thickness lends itself to the variety of tile seals
tub body, and an upturned tile setting ?ange extending
described above. As explained, the tiles may be posi
upwardly from and completely about said rim and spaced
tioned and cemented to the inner or outer face of ?ange
20 or to its upper surface. Either ?at or curved tiles may 25 outwardly from the cavity and inwardly from the outer
edge of the rim thereby providing a substantially ?at sur
be employed. In all cases, the bathtub is sealed with an
face on either side of the ?ange.
attractive appearing tile trim.
2. A bathtub for universal application as de?ned in
The slots 24 equally spaced around ?ange 12 enable
claim 1 wherein said horizontally extending rim is pro
the attachment to the tub of wood or metal forms as a
base for tiling in the exposed tub sides. The downturned 30 vided with a downturned ?ange at its outer edge, said
outer edge and the bottom surfaces of said downturned
rim 18 permits the accurate location of a form under the
?ange forming positioning means to ?x said tub body.
rim when tiling on a horizontal surface and also provides
3. A bathtub according to claim 2 wherein said down
support for the tub in addition to the support which may
turned ?ange is provided with a plurality of openings
be provided from legs 30 or leg sockets 26; or hangers
in the slots 24.
35 for purpose of receiving means for positioning and
fastening said tub body to wall elements.
FIG. 13 illustrates the installation of the standard tub
4. A bathtub as de?ned in claim 1 wherein said up
unit 10 in a right hand corner and at a standard height.
turned ?ange for seating tile is the height of and spaced
inwardly from the outer edge of the said rim distances
the tub unit proper.
40 approximately equal to the thickness of standard tiles.
5. The bathtub of claim 1 comprising leg receiving
FIG. 14 illustrates the installation of the standard tub
sockets on said tub body extending along the height of
unit 10 sunken in the floor of a bathroom with one side
the tub walls and below the bottom surface of said
against a wall of the bathroom. In this instance, the
cavity, legs removably disposed in said sockets.
plumbing faucets 76 and 78 are preferably installed in
Preferably, the plumbing inlets to the tub are provided by
faucets 72 and 74 positioned in the bathroom wall above
6. The bathtub of claim 5 comprising means on said
the ?oor at one end of the tub.
legs for varying the height thereof, said sockets, legs and
In both FIGURES 13 and 14, it is apparent that the tub
10 is bonded to and masked by tile to provide a most at
means totally underlying the peripheral outer edge of
said rim to permit installment of any side of the bathtub
tractive and pleasing appearance as Well as a watertight
against a wall.
construction.
The drawings illustrate only a few of the many varia
References Cited in the ?le of this patent
tions of construction which may be employed with the
standard tub 10. Other modes of utilization not illus
UNITED STATES PATENTS
trated include: raising the tub of FIG. 14 to standard
1,144,191
Gray ________________ .__ June 22,
level or raised level, as side pier types of installations;
Stark _______________ __ June 28,
positioning the tub sunken as in FIG. 14, but with the 55 1,633,685
1,738,256
Miller _______________ .__ Dec. 3,
butting wall adjacent the end rather than the side of the
1,778,300
Ramstead ____________ _._ Oct. 14,
tub; and raising the tub installed in this manner to dif
2,013,720
Thompson __________ .__ Sept. 10,
ferent elevations. Still other variations involve lowering
2,054,146
Troeger et al. ________ .. Sept. 15,
the tub 'as positioned in the long recess of FIG. 1 to stand
ard or sunken levels, or varying the recess to increase or 60
decrease its length and breadth to the minimum dimen
sions equal to those of the tub. If desired, the tub may
be sunken in a ?oor and positioned entirely away from
all walls of the bathroom; or if elevated in such position,
constructed as an island in the bathroom.
The foregoing explanation reveals the almost limitless
65
2,102,082
1915
1927
1929
1930
1935
1936
Lucke ______________ __ Dec. 14, 1937
2,117,233
Clark _______________ __ May 10, 1938
2,161,952
2,533,591
2,609,547
2,841,795
2,850,743
Dean _______________ __ June 13,
La Barre ____________ __ Dec. 12,
Clark ________________ __ Sept. 9,
Pelicano ______________ __ July 8,
White _______________ __ Sept. 9,
1939
1950
1952
1958
1958
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