US2705542A - Shower drain - Google Patents

Description

April 5, 1955 M v H 2,705,542

SHOWER DRAIN Filed Aug. 7, 1950 2 She ts-Sheet 1 III INVENTOR: Morr'w Yeti/115070,

ATTORNE).

yam/m 2 Sheets-Sheet 2 M. YAVITCH SHOWER DRAIN INVENTUR. Morris Yell/itch,

April 5, 1955 Filed Aug. 7, 1950 A T TOR/VEY.

United States Patent O SHOWER DRAIN Morris Yavitch, Los Angeles, Calif.

Application August 7, 1950, Serial No. 178,099

2 Claims. (Cl. 182-1) This invention relates to shower drains for bath cabinets and the like, and the invention is an improvement on my Shower Drain disclosed in my application for Letters Patent, Ser. No. 626,662, filed November 5, 1945, now abandoned.

The general object of the invention is to provide an improved shower drain of the character as above stated, in which the test pipe is threaded in the drain inlet receptacle, and in which either a thread joint of a caulk joint is provided for connection of the outlet nipple to a drain pipe.

Other objects and advantages will appear hereinafter as this specification progresses.

The invention is illustrated in the annexed drawings, which form a part of this specification and in which:

Fig. 1 is a vertical longitudinal section of my invention taken on line 1-1 of Fig. 2, shown installed in a shower bath cabinet.

Fig. 2 is a top plan view of my invention.

Fig. 3 is a top plan view of my invention with the grill removed.

Fig. 4 is a vertical longitudinal section of my shower drain taken on line 4-4 of Fig. 3, with a test pipe threaded into the upper member thereof and a collar on said test pipe resting upon the upper end of said upper member for testing my shower drain.

Fig. 5 is a vertical longitudinal section like Fig. 4 of a modification of my invention.

Referring more particularly to the drawings, in which the same parts are designated my the same reference numerals in all of the figures, my shower drain includes generally a lower drain member 1 and an upper drain member 2.

In the form shown in Figures 1 and 4, said lower drain member 1 is formed with a slightly inclined conical funnel-shaped base wall 3 provided with a central outlet opening 4 and formed with a drain outlet nipple 5 depending centrally from said base wall in communication with said outlet opening 4, there being an annular rabbet 6 in the upper edge of said outlet opening 4. In said base wall 3 are formed a plurality, preferably three, sockets 7, open at the upper side of said base wall 3 and internally threaded as at 8, which sockets are spaced equidistant apart around said base wall. The outlet nipple 5 is provided with an internal thread 9.

The upper drain member 2 comprises a vertical cylindrical drain receptacle 10 formed at its lower end with an upwardly inclined external and internal conical annular base 11, the outer external portion of which base forming an external annular clamp 12, and the internal portion of which base forming a narrow, annular bottom wall 13 in said drain receptacle 10, there being a central opening 14, through said bottom wall 13 formed with an internal thread 15 for the purpose hereinafter more fully described. The lower side 16 of said annular base 11 is inclined at the same angle as the upper side 17 of the base wall 3 of the lower drain member 1 to fit closely within said conical base wall. From the lower side of the annular conical base 11 depends an annular boss 18 coaxial with the opening 14 in said base 11 and with its central opening forming the lower part of said opening 14 in said base 11, the thread 15 in said base 11 extending downwardly through said boss 18. Said annular boss 18 of said upper drain member 2 fits in the annular rabbet 6 in the base wall 3 of the lower drain member when the base 11 of the upper drain member 2 is fitted in the base wall 3 of the lower drain member 1. A plurality of 2,705,542 Patented Apr. 5, 1955 weep holes 19, preferably three, are provided in the lower end of the cylindrical wall 20 of the drain receptacle 10, adjacent the upper side of the annular base 11 of said receptacle, said weep holes being spaced equidistant apart around said cylindrical wall of said. drain receptacle. The upper end of the cylindrical wall of the inlet receptacle 10 is formed with an internal annular rabbet 21 in its inner side, in which rabbet a grill 22 is detachably fitted and is normally secured by countersunk screws 23 extending downwardly through screw openings 24 in said grill and threaded in bosses 25 formed at the upper end of the wall of said receptacle on the inner side of said wall. The external portion of the annular base 11 of the upper drain receptacle 2 provides the external annular clamp 12, which is provided with a plurality of bolt openings 26, preferably three, adapted to register with the three threaded bolt. sockets 7 depending from the base wall 3 of the lower drain member 1, when the upper drain member 2 is placed above and within said lower drain member, which bolt openings 26 and threaded sockets 7 are adapted to receive bolts 27 in the manner and for the purpose hereinafter more fully described. The drain receptacle 10 is substantially larger in diameter than the drain outlet nipple 5 of the lower drain member 1.

The grill 22 may be provided with drain outlets 28 of any suitable form and arrangement, such as shown in Fig. 2 of the drawings, in which said outlets 28 are in the form of parallel slots, which extend outwardly from a diametrical narrow portion 29 of the grill 22 to points near the outer circular edge 30 of the grill, said diametrical portion 29 extending diametrically of the grill between the screw openings 24 and the screws 23.

A test pipe 31 is employed for testing my shower drain in the manner hereinafter more fully described. On said test pipe is slidably fitted a fiat collar 32, and on the lower end of said test pipe is formed an external thread 33 for engaging the thread 15 in the central opening 14 in the base 11 of the upper drain member 2. On the upper end of said test pipe 31 a cap 34 may be threaded for preventing dirt or other material entering said test pipe.

My shower drain may be installed in a bath cabinet 35 as follows:

An opening 36 is cut in the floor 37 of the room in which said bath cabinet 35 is constructed, and the conical base wall 3 of the lower drain member 1 is fitted in said opening 36, with the upper and outer edge of said base wall 3 adjacent the edge of said opening and flush with the upper side of said floor 37, so that said base wall and the outlet nipple 5 of said lower drain member I extend downwardly from said floor 37. The outlet nipple 5 is threaded on the upper threaded end of a drain pipe 38, with the thread 9 in said nipple engaging a thread 39 on said end of said drain pipe. A shower pan 40 of lead, copper or paper coated with tar, provided with a central opening 41 in its bottom wall 42, is placed in the bath cabinet 35 with said bottom wall upon the floor 37 and over the outer portion of the annular base 3 of the lower drain member 1, with the center of said opening 41 in said bottom wall 42 coinciding with the center of the drain member 1, and with the side wall 43 of said shower pan 40 fitted against the inner side of the vertical wall 44 of the bath cabinet 35. The upper drain member 2 is placed over the lower drain member 1 with the annular clamp 12 at the outer portion of the annular base 11 resting upon the bottom wall 42 of the shower pan 40 over the edge of the opening 41 in said bottom wall, and with the bolt holes 26 in said annular base 11 of the upper drain member 2 coinciding with the threaded sockets 7, respectively, in base wall 3 of the lower drain member 1. The bolts 27 are then introduced downwardly through the bolt holes 26 in the base 11 of the upper drain member 2 to the upper ends of the threaded sockets 7 of the lower drain member 1, and, upon applying a Wrench to the heads 45 of said bolts and turning said bolts to the right, said bolts engage the threads 8 of the sockets 7 while said bolt heads 45 engage the upper side of the annular base 11 of the upper drain member 3 and drawn down said upper drain member, whereby the annular clamp 12 engages the inner annular portion of the bottom wall 42 of the shower pan 40 over the edge of the opening 41 in said bottom wall and clamps said inner edge portion of said bottom wall tightly between said clamp 12 and the base'wall 3 of the lower drain member 1, and detachably secures the upper drain member 1 to the lower drain member 2 in position for use with the conical base 11 of the upper drain member 2 fitting closely within the conical base wall 3 of the lower drain member 1. The grill 22 is then fitted in the rabbet 21 in the upper end of the drain receptacle of the drain member and said grill is detachably secured in said rabbet 21 by the screws 23 driven through the countersunk openings 24 in said grill into the threaded bosses 25 in the upper end of said drain receptacle 10.

For testing my shower drain for leaks the operation of my invention is as follows:

The grill screws 23 are first turned by a screw driver and unscrewed from the bosses 25, and the grill 22 is removed from the rabbet 21 and the upper end of the drain receptacle 10 of the upper drain member 2. The test pipe 31 is then introduced into the drain receptacle 10 through the open upper end thereof, and the lower threaded end of said test pipe is threaded into the threaded opening 14 in the center of the bottom 13 of said drain receptacle 10 of the upper drain member 2, with the external thread 33 on the lower end of said test pipe 31 in threaded engagement with the internal thread in said opening 14, and with the lower end of said test pipe adjacent the upper end of the drain pipe 38. The fiat collar 32 is then moved down on said te'st pipe 31 upon the upper end of said drain receptacle 10 into the rabbet 21, closing said receptacle at its upper end around said test pipe. Water is then introduced into the shower pan 40, from which part of said water flows through the weep holes 19 into the bottom of the drain receptacle 10 until the water fills said drain receptacle around the test pipe 31 and fills said shower pan 40 up to a suitable level 46 above the upper end of said drain receptacle 10, as shown in Fig. 4 of the drawings, the lower end of the test tube 31, threaded into the bottom opening 14. of said drain receptacle, preventing the water from flowing out of the bottom of said drain receptacle 10 through the drain nipple 5 and drain pipe 38. If there is a leak in the shower drain the water flowing through said leak will indicate its location under the bath cabnet 35, and upon unscrewing the lower threaded end of the test pipe 31 from the threaded opening 14 in the bottom 13 of the drain receptacle 10 and removing said test pipe from said opening 14, the water will fiow out of the shower pan 40 through the weep holes 19 into the lower end of the I drain receptacle 10 and out of the drain receptacle through the opening 14 in the bottom of said receptacle and out through the drain pipe 38. The leak or leaks are then repaired, and my shower drain may again be tested and leaks, if any, repaired, until there are no leaks in the drain.

When by shower drain, after being tested one or more times, contains no leak, the shower pan 40 is filled with concrete 47 up to the level of the upper end of the drain receptacle 8 and the upper surface of the grill 22 and the upper surface 48 of said concrete forms the floor of the bath cabinet 35. The test pipe 31 is also positioned in the drain receptacle 10, with its lower threaded end screwed into the threaded opening 14 in the bottom of said receptacle, and the collar 32 is moved down on said pipe upon the upper end of the drain inlet receptacle 10, when the concrete is poured in the shower pan 40, to prevent any of said concrete, dirt or other things from entering said drain receptacle 10 and drain pipe 38. When the concrete work is done, the test pipe is unscrewed at its lower end from the threaded opening 14 in the bottom of the drain receptacle 10, and said test pipe is removed from said receptacle, whereupon the grill 22 is placed in the rabbet 21 in the upper end of the drain receptacle and secured in such position by the screws 23, driven through the screw openings 24 in said grill into the bosses in the upper end of the drain receptacle 10, with the upper surface of said grill flush with the upper surface 48 of the concrete 47.

In the use of the bath cabinet 35 with my shower drain, water from the shower nozzle in said cabinet falling upon the surface 48 of the concrete floor 47 and the grill 22 is drained out of said cabinet through the grill openings 28, drain receptacle 10 and its opening 14 in the bottom thereof, and out through the drain pipe 38.

My invention provides for a more practical, effective and satisfactory test for leakage than other shower drains known to applicant.

In the modification of my invention shown in Fig. 5 of the drawings, the construction and operation are the same as shown in Figs. 1 to 4, inclusive, of my invention, except that the thread 9 in the outlet nipple 5 of Figs. 1 and 4 is eliminated and an annular pocket 50 is formed in the inner side of said outlet nipple 5 with an inwardly directed wall 51 formed on the lower end of the cylindrical pocket wall 52, closing the lower end of said pocket 50 and leaving the upper end of said pocket open at 53. A drain pipe 54 is introduced upwardly into the outlet nipple 5 with the outer surface of said pipe engaging the inner edge of the inwardly directed wall 51 of the pocket 50, in which pocket caulking material 55 is introduced, and packed with oakum and caulked with lead therein through the upper end thereof, whereby the upper end portion of said drain pipe is caulked watertight in said outlet drain nipple 5, and said pipe is prevented by said caulking material, from leaking and pulling out of said outlet drain nipple.

I claim:

1. In combination, a lower drain member including a funnel-shape base wall formed with a central depending drain outlet nipple to which a drain pipe may be connected, a shower pan provided with a central opening, said shower pan' being placed upon said base wall with its said opening coinciding centrally with said outlet nipple, an upper drain member formed at its lower end with an annular external and internal base, and with a drain inlet receptacle upstanding from said annular base, the external portion of said base forming an external annular clamp, the lower side of said base being of inverted conical shape, said drain receptacle being substantially larger in diameter than said drain outlet nipple of said lower drain member, said upper drain member being placed with the external portion of its annular base resting upon the bottom wall of said shower pan around the edge of the opening in said shower pan, means for bolting said annular base of said upper drain member and said bottom wall of said shower pan to the funnel-shaped base wall of said lower drain member externally of said drain inlet receptacle, said drain inlet receptacle being provided with weep holes in its lower end above said annular base of said upper drain member, said annular base of said upper drain member being provided with an internal thread in its central opening, a removable test pipe externally threaded at its lower end, to be extended through said drain inlet receptacle and its said lower end threaded into the internal thread in said central opening in said annular base of said upper drain member.

2. A shower drain as claimed in claim 1 in which the base wall of the lower drain member is provided with an annular rabbet and the base of the upper drain memher is formed with an annular boss surrounding its outlet, which boss is adapted to seat in said rabbet of said lower drain member.

References Cited in the file of this patent UNITED STATES PATENTS 1,676,430 Delany July 10, 1928 1,766,621 Fleming June 24, 1930 1,900,658 Niedccken Mar. 7, 1933 1,914,780 Lichamer June 20, 1933 2,127,167 Fraters Aug. 16, 1938 2,222,807 Burr Nov. 26, 1940 2,299,705 Svirsky Oct. 20, 1942 2,400,070 Boosey May 14, 1946

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