US2461812A - Pop-up waste valve - Google Patents

Description

Feb. 15,, 1949. 1 M. F. DE GRAVEQET AL 2,461,312

POP-UPWASTE VALVE Filed Jan. 28, 1946 Patented Feb. 15, 1949 POP-UP WASTE VALVE- Marvin F. De Grave and J osephCalladine; Salem, Ohio, assignors to Elton-Company, Ford City,

Application January 28, 1946, Serial'No. 643,898

13 Claims. (Cl. 4-198) This invention relates to lavatory pop-up waste valves for wash basins and the like.

It is an object of the present invention to provide certain new and useful improvements in the means for moving the valve in opening and closing the same.

A further object of the invention is to'provide for automatically holding the valve in the closed or any open position to which it may have any selected open position.

' Another object is to provide for the convenient assembly'of the valve operating means with the valve casing.

The improvements of the present invention have been designed for use in connection with the conventional type of pop-up waste valve and been moved, thereby to maintain the valve in may be installed without requiring any change in the conventional manner of clamping the valve 1, casing upon the wash basin, and without alter- I ing the conventional valve and valve stem. In this connection it is proposed to provide for the convenient assembly of the valve casing and a nut employed for clamping the casing tothe wash basin.

The present invention employs a conventional valve actuating lever having the conventional circular enlargement to be used as the fulcrum portion thereof. According to the present invention the'circular fulcrum portion of the lever is housed within a tubular nipple or fitting in such a manner that the lever and nipple may be conveniently assembled and thereafter may be engaged with the valve stem and the nipple connected to the valve casing while the nipple and lever are in assembled relation, thus simplitying the association of these parts.

Provision is also made to maintain the circular fulcrum portion of the lever under a yielding pressure such as will permit swinging of the lever on its fulcrum for manipulation of the valve,

While at the same time exerting pressure .on the circular portion sufficient to hold the lever in' 2 the appended claims; without departing from the principles of the present invention.

In the drawing,

Figure 1 is a longitudinal sectional view of a conventional pop-up valve having the improvements of the present invention applied thereto;

Figure 2 is a detail sectional view on' the line 2 2 showing the manner of assembling the clamping nut with the valve casing, the valve actuating lever and supporting nipple being removed.

In the accompanying drawing, the reference numeral I indicates a conventional form of popup valve casing which is in the form of a tube open at opposite ends. The lower open end of the casing is screw threaded for connection with a waste pipe in the ordinary conventional manner. The upper end of the valve casing is provided with an annular flange 2, as usual, for engagement with the upper face of the bowl, Below the flange, the valve casing is provided with slots or openings 3 to permit overflow water to enter into the interior of the valve casing. Below the openings 3, the Valve casing is exteriorly threaded as at 4 for engagement by a clamping or retaining nut 5 for pressing a gasket 6 against the bottom of a wash bowl.

Within the casing is a tubular open ended valve stem 1 having a working fit Within the casing and carrying at its upper end any suitable form of valve head or member 8 for closing the open upper end of the valve casing l. The stem is provided with slots or openings}! in its upper end portionfor registration with the side openings 3 in the valve casing so as 'to admit overflow water into the interior of the tubular stem "I, the latter being open at its lower end to permit of the escape of waste water and overflow water into the waste pipe. The tubular valve stem 1 is raised and lowered by means of a lever 10 havingits inner end received within an opening it in a wall of the tubular valve stem 1. The outer end of the lever is intended to be connected with any conventional or preferred formof means for rocking the lever in a vertical plane. As is common practice the'lever is provided with. a spherical enlargement l2 constituti'ng'the fulcrum portion of the'lever. The parts thus described are conventional and form no part of the present invention.

In carrying out the present invention, there is provided an open ended tubular fitting or nipple l3 within which works the inner end portion and the spherical fulcrum portionof the lever. The valve casing l is provided with an opening id to accommodate the inner-end ofthelever, and

3 7 permit the necessary up--and-down movement thereof. Surrounding this opening is a circular flange or boss l with which the inner end of the fitting or nipple It has a screw threaded connection. A suitable packin ring It is provided between the outer end of the flange l5 and an annular shoulder l! provided upon the nipple so as to provide .a water tight joint atthis point.

Before connecting the nipple I3 to the valve casing, the outer end portion of the lever Ill is passed through the inner open end of the nipple and out through the outer open end thereof :until the spherical portion l 2 engages an inner annular flange l8 provided upon the nipple and reducing the interior diameter of the latter at this point so as to prevent outward passage of the spherical part l2 and thus prevent separation of the parts in an outward direction. Suitable packing i9 is introduced through the open inner end of the nipple and arranged around the spherical part l2. A packin gland "2%? is then introduced into the nipple and against the packing. A spring 21 in helical form is then placed against the gland, and asplit spring retaining ring 22 is introduced into the nipple and snapped into an annular groove 23 provided in the inner-wall of the nipple.

It will here :be explained that the lever, the packing, the gland, the spring and the retaining ring, may all be conveniently introduced into the nipple through the inner end thereof, and when the parts have thus been assembled, the spring will exert pressure on the gland through which pressure will be applied to the packing and then to the spherical portion l2 so that said spherical portion will be held against the flange 18 and will be under yielding pressure exerted by the spring 2|.

The valve casing is assembled with a lavatory wash bowl in the usual manner prior to placing the nipple 13 upon the casing by thrusting the casing downwardly through the usual opening in the base of the "bowl commonly provided for this purpose and the nut :5 is then :set up against the gasket ll to clamp the bottom of the bowl between the flange 2 and the nut. .It 'will, of course, be understood that the nut is assembled with the valve casing and set up tightly against the gasket prior to assembling the valve operating means with the casing and the valve stem. I In order to facilitate the assembly of the nut E5 with the valve casing 1,, the threaded bore of the nut is provided with a notch 24 extending entirely across the bore and opening through opposite faces of the nut. The notch is of such size and shape as to permit of the passage therethrough of the flange I 5 when the not has been slipped upon the exteriorly unthreaded end portion of the valve casing and moved along beyond the flange 15 so that it may be engaged with the exteriorly threaded and somewhat enlarged por tion 25 of the valve teasing and then screwed tightly against the end of the gasket 6. The notch (24 is large enough to permit of the passage therethrough of the flange 15, thus leaving a length of screw threads in the bore of the nut sufficient to enable proper engagement of the threads of the nut with the threaded portion 25 of the valve casingto enable the setting of the nut against the gasket'fi. The external diameter :of the exteriorly unthreaded valve casing portion is slightly less than the diameter of the bore of the nut, so as to enable the quick and convenient assembly of the nut and valve casing.

Any suitable connection may be provided between the outer end of the lever and the casing, a valve stem working in the casing, said casing having-an exteriorly screw threaded portion and provided with an opening located between the screw threaded portion and the outlet of the casing, said opening having an outwardly directed circular flange, a retaining out for en-- gaging the screw threaded portion of the casing and provided in its bore with a notch opening through opposite faces of the nut andthrough which notch the flange may pass when the nut is being assembled with the casing preparatory to engagement with the threaded portion of the casing, and valve stem operating means carried by the flange and having a lever extending through the opening in the casing and into operative association with the valve stem.

2. In a waste valve mechanism, a tubular valve casing having a retaining flange at one end, an intermediate exteriorly screw threaded portion, and provided with an openin located between the other end of the casing and the screw threaded portion, said opening having external flange, a valve at the retaining flange end of the casing, a valve stem extending from the valve and to the opening in the casing, a retaining nut having a screw-threaded bore of a size to receive the said other end of the casing and engage the screw threaded portion of the casing, the bore of the out having a notch opening through opposite faces of the nut and of such a size and shape that the said flange will pass therethrough when moving the nut along the casing for engagement with the screw threaded portion thereof, a nipple mounted upon the flange, and valve stem actuating means carried and housed by the nipple and extending through the opening in the casing and into operative association with the valve stem.

3. In a waste valve mechanism, a tubular -oasing having an outwardly directed retaining flange at its inlet end, an intermediate portion of the casing being externally enlarged and screw threaded, there being an opening in the casing located between the screw threaded portion and the outlet end of the casing, said casing having an outwardly directed flange surrounding the opening and projecting outwardly to a greater extent than the enlarged screw threaded portion of the casing, and a retaining nut having a threaded bore of a diameter to fit the threaded portion of the casing, the bore of the nut having a notch extending across the screw threaded portion and opening through opposite faces of the nut, said notch being of a size to permit the said flange to pass therethrough preparatory to engaging the threads of the nut with the threads of the casing.

4. In a waste valve mechanism, a tubular valve casing'having a retainin flange at its inlet end and provided with an exteriorly screw threaded enlarged portion between the ends of the casing, the casing having a lateral opening located between the screw threaded portion and the outlet end of the casing, said casing also being provided with a circular flange surrounding the lateral opening, a valve at the inlet end of the casing,

nipple, packing within the nipple and at the inner side of said spherical portion, a packing gland engaging the packing, a split spring retaining ring within the groove in the nipple, and a helical spring between and bearing against the retaining ring and the packing gland, and a retaining nut on the exteriorly screw threaded portion of the casing, the bore of said nut having a notch opening through opposite faces of the nut and of a size to permit of the passage of the flange on the easing through the notch preparatory to engaging the nut with the screw threaded portion of the casing.

5. In a waste valve mechanism, a tubular valve casing having a valve at its inner end and a valve stem extending therefrom towards the outlet end of the casing, said casing having a lateral opening, a nipple carried by the casing and communicating with the lateral opening therein, the bore of said nipple being reduced in diameter at its outer end, the inner wall of the nipple being provided with an annular groove in the inner end portion of the nipple, a valve actuating lever extending through the nipple and through the opening in casing into operative relation with the valve stem, said lever having a spherical fulcrum portion housed within the outer portion of the nipple and of a diameter exceeding that of the reduced bore portion of the nipple, packing at the inner side of the spherical fulcrum portion, a gland bearing against the packing, a split spring retaining ring in the groove of the nipple, a helical spring bearing at opposite ends against the retaining ring and the packing gland.

6. In a waste valve mechanism, a hollow casing x.

having inlet and outlet ends, an exteriorly thread- -ed portion between the ends, there being an interiorly threaded lateral opening between the threaded portion and the outlet end of the casing,

a boss at the lateral opening, a retaining nut interiorly threaded and with a part of threaded portion cut out to permit it to be slipped over the casing and the boss to engage the thread on the casing, a valve for closing the inlet of the casing, a nipple in threaded connection with the lateral opening, a lever extending through the nipple, and spring means in the nipple to hold the lever in operative association with the valve.

'7. In a waste valve mechanism, a tubular casing having an inlet end and outlet end, an exteriorly threaded portion intermediate the two ends, there being a lateral opening between the threaded portion and the outlet end of the casing, a boss at the lateral opening, a retaining nut interiorly threaded to suit the thread on the casing, said nut having a portion of the threaded part cut away to permit the nut to slip over the lower part of the casing and said boss to engage the threaded portion of the casing, a valve in the casing, and a lever connected through the lateral opening to operate the said valve.

8. In a waste valve mechanism, a tubular casing having an inlet and provided with a flange, there being a lateral threaded opening through the casing, said opening having a. raised boss extending beyond the diameter of the casing, a nor-- tionof the casing being exteriorly threadedbetween the flange and the lateral opening, a threaded retaining nut with an interior portion cut away to permit it to be passed over the casing and the raised boss and toengage the -threaded portion of the casing, a valve in the casing, a threaded fitting screwed into-the lateral opening, a valve operating lever extending through the fitting, and spring means in the fitting to hold the lever in operative association with the valve.

9. In a waste valve mechanism, a tubular cas-- 7 ing having an intermediate portion exteriorly threaded, there being a lateral opening through the casing, an annular flange around the opening, a threaded retaining nut having a portion cut out to permit the nut to be slipped over the casing and the annular flange to engage'the threaded portion of the casing, a valve in the casing, a nipple screwed into the lateral opening, and an operating lever in association with the valve for the operation thereof.

10. In a waste valve mechanism, an exteriorly threaded tubular casing having an inlet end and a lateral opening, means for securing the casing to a fixture, a valve for closing the inlet end of.

said lever having a spherical fulcrum portion located Within the nipple, the outer end portion of the bore of the nipple being smaller and the inner portion of the bore of the nipple being larger than the spherical fulcrum portion of the lever, ring retaining means within the nipple, a split spring ring held by said retaining means, packing against the spherical fulcrum portion, and a helical spring bearing against the split ring and the packing. I

11. In a waste valve mechanism, a tubular casing having a lateral opening, a valve for closing one end of the casing, a nipple screw connected in the lateral opening, a lever having a spherical fulcrum portion and extending through the nipple and the inner end of the lever being in operative relation to the valve for the opening and closing of the valve, packing means on the inner side of the spherical portion of the lever, a split spring retaining ring secured in the nipple, and a helical spring between and with its opposite ends bearing against the packing and retaining ring.

12. In a waste valve mechanism, a tubular casing with a flange at the top end, a valve for closing the inlet to the casing, a clamping nut for securing the casing, a lever extending through an opening in the casing into operative association with the valve for the opening and closing of said valve, packing around the lever, a split spring retaining ring spaced inwardly from the packing, and a helical spring around the lever and bearing to exert pressure against the packing and the split retaining ring.

13. A waste valve fitting including a hollow tubular casing, retaining means including a nut 7 means to hold said spring means in a, compressed condition.

MARVIN F. DE GRAVE.

JOSEPH CALLADINE.

REFERENCES CITED The following referencesare of record in the file of this patent:

Number Roxs et a1 Aug. 15, 1944

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