US2607924A

US2607924A - Flush tank valve

Info

Publication number: US2607924A
Application number: US130742A
Authority: US
Inventors: Yervant H Kurkjian
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-12-02
Filing date: 1949-12-02
Publication date: 1952-08-26
Anticipated expiration: 1969-08-26

Description

Aug. 26 1952 Y. H. KURKJIAN FLUSH TANK VALVE Filed Dec. 2, 1949 INVENTOR. YmvA/vr Ii fiU/PAJ/AN m ar x Patented Aug. 26, 1952 UNITED jsr s PATENT OFFICE" Q 7 t 2,607,924 7 7 7 v a f FLUSH TANK VALVE vejr antn urkjian, Clifton, N. J. Application December 2, 1949, Serial No. 130,742

This invention relates to flush'Itank Valves, and has for one ofits objects the production of a simple and efficient flush tank valve which is so constructed asto prevent the valve from being improperly seated upon the valve seat, and which is provided with means to holdthe rubber portion of thevalve away from: the valve seat until the valve is in a proper seating position.

A further object of this invention is the production' of a simple and efiicie'nt flush tank valve Claims. (CIA-56) .havingm'e'ansj for forcing the valve-into sealing engagement with aivalve seat' when the valve movesto a closed position'and for breakin its sealing engagementfwith the valve seat when a liftingrpressure is exerted upon. the valve stem of the valve. I i

still, further objectof this invention is the provision of a flexible stem and connection thereof with the valve to provide for, a. universal movement of the valve, whileseating to' insure centering of the valve and; the proper seating of the valve, even though the actuating rod is out of alignment or off center,w o

Other objects and'advantagesof; the present invention will, appear throughout the following specification and claims.

t In the drawing:

Figure l is a side elevational view of the valve;

Figure-2 isa top plan view of thegvalve;

, I Figure 3-is a vertical sectional view of the valve in its seat-sealing position upon the valve seat;

' Figure 4 is a top plan .view of the rigid flange ring which is carried bythe lower open'endof the flexible valve, a'portion ofthe ring being shown insection;-

v Figure 5 is a horizontal sectionalview taken on line.55 of Figure 1; I U

,Figure 6 is a vertical sectional view ofthe valve, partly in elevation, showing the valve in a position justbefore it is drawn to a sealed seat-engaging position; I a Y a V Figure 7 is a view similar 'to Figure 6 showing the manner. of breaking the sealing engagement of the flexible valve with the valve seat;

Figure 8 is a fragmentary sectional view of a modified type of valve and rigid flange ring.

. By referring to thedrawingin detail, it will be seen that Ill designates al conventional valve seat of a conventional flushtank. A hollow flush valve .II 'is adapted to fit snugly upon the seat ID, in the mannershownin the drawing. The flush valve I I is formed of soft rubber, and is provided with an open bottom having an inturned annular having an annular thickened flange I3 around its top periphery, which flange I3 encircles a flexible diaphragm top wall I4. This diaphragm top wall I4 supports astem I5 which preferably is provided with a socket I6 at its lower end adjacent to the point where the stem I5 connects to the diaphragm to add flexibility at this point of junction. An internally threaded socket member I7 is fitted in the upper end of the stem- I5 andreceives the lower threaded terminal of the valve operating rod I8, as shown in Figure 3.

Triangularly shaped ribs I9 arranged inradiati-ng relation to the socket I6 are formed integral with the side wall 20,-and-the under face ofthe diaphragm top wall I4, as shown in Figure'3. 1 It should be noted-that since the wall 'andthe diaphragm top wall are formed of flexible soft rubber, the ribs I9 will efllciently brace the same and tend to hold the body of the valve in shape flange I2 at the periphery o f the open bottom.

and against collapse, The, ribs I9 extend on an incline from a. valve seat engaging portion of the side wall zil to a point adjacent the junction of the stem I5-with the diaphragm I4, as-shown clearly in Figures 3, 6 and 7.

Because of the flexible nature of theflush valve,

the side wall 20 will conform to the contour of the valve seat andthereby provide an eflicient seal when thevalve is seated in position.

A rigid flange ring 2! formed of metal, plastic,

or other rigid material, is removably secured to the inturned flange 'I 2 of the valve :Ij and comprises an'inner-flange 22 which overhangs the flange I2 of the valve I I, and a spacedouterflaring flange 23 which underlies the flange I2 therey fi n annula anne

tw n h flanges

22 and 23 to snuglyretain the flexible soft rubber inturned flange I2 of the valve I I, and to hold the ring 2| upon the valve II." The flange 23 preferably is provided with a straight horizontal upper face 24 which projects laterally and annularly at substantially right-angles to the axis of the ring 2! beyond the lower end of the valve II. The ringZI is provided with a central aperture 25 and, an upwardly and outwardly inclined bottom face 26, as shownin detail in Figure 3,-

It should be notedJthat the ring 2I flares out,- wardly or laterally of the inwardlyinclined flexible wall 20 of the valve I I so that the outer periphery ofthe flange 23 will contact the inner face, of the outlet pipe 21 when the valve II is moving to-a seating position upon the valve seat I0. In this way the valve willnotbecome improperly seated npon the valve seat which might cause a leakin actionjbut the metal or rigid ring, by strikinglthe valve seat or the inner face 3 of the outlet pipe tends to center the valve and cause the valve to be directed to aproper sealing position upon the seat Ill. The force of the water hittin the upper face 24 of the flange 23 will suddenly pull the valve II to a proper and tight seating contact upon the valve seat. This ring 2| reinforces the lower end of the valve to prevent the valve from collapsing, and tends to hold the'soft rubber valve out of closin contact with the seat until the valve is properly centered and is then suddenly and forcibly pulled to a sealing position upon the valve seat Ill, Furthermore, the ring by being formed of metal, plastic, or

4 having a laterally extending flange protruding beyond the lower end of the body and adapted to contact the outlet pipe of a flush tank to hold the flexible valve out of contact with the valve seat until the valve is properly centered and is in a proper seating position.

2. A tank valve comprising a hollow flexible body, a valve seat adapted to receive said body, Said d having a bstan ially i verte coneshaped formation, said body having an open lower end, a rigid ring removably secured and fitted in said open lower end, said ring having a laterally extending guiding flange protruding beother rigid material, and because of its inclined under face striking the metal outlet pipe 21 will tend to slide off the upper edge of the valve seat H! toward a centered position in the outlet pipe 27 as the valve l I moves to a closing position. It s I should be noted that the ring 23 causes the valve H to first center and to then suddenly pull the valve H to a sealing position upon the seat 19 when the rushing water-from the tank passes downwardly through the outlet pipe 2?. thermore, the pressure of the water upon the diaphragm top wall l4 will force the ribs 19 downwardly and thereby force the inclined wall 25 firmly'lin contact with the seat NJ, as shown in Figure 3;

However, when the rod [8 is pulled upwardly to flush the tank, the-stem [5 will be pulled upwardly, thrbyraising the diaphragm Id and in this way exerting an upward pull 'upon the radiating ribs [9. This upward pull upon the ribs will exert an inward pull upon the valve seat engaging portion of the wall 28 to produce dimples 28 in the outer face of'the wall and thereby break the seal between the wall 20 and the seat [0, This action will permit water from the tank T to pass between the valve 1 ii and the seat It], and thereby cause the valve'to be easily released from the seat H] without excessive pull upon the 'opera ting' rod "18, -Furthermore, the flexible stem and diaphragm will facilitate'the centering of the valve evenif the actuating rod is out of alignment or is off eenten; The flange l3by extending above the diaphragm l4 defines a dished upper end for the valve to receive water from the tank and to, thereby add'additional weight to the valve to facilitate seating. The flexible stem and'diaphragm facilitate universal movement of the valve relative to the actuating rod and irrespective of the aligned position of the actuating rod. I

The ring 2| in addition to reinforcing the bottom of the valve ll provides a weighted bottom for the valve to further facilitate the seating of the valve H.

As shown in Figure 8, the open end of the valve H may be reinforced by anencasing rigid substantially U-shaped rigid reinforcing and guiding ring 2H, if desired, as a modified form in place of the preferred ring 2| shown in detail in Figure 3. Other detail changes in structural design may be made within the scope of the present invention, so long as these changes fall within the scope of the appended claims.

Having described the invention, what Iclaim as new is:

1. A tank valve comprising a hollow flexible body adapted to snugly fit upon a valve seat, said body having a substantially inverted coneshaped formation, said body having an open lower end, a rigid ring secured to and cmried by said open lower end, said ring completely surroundingthe lower end of the body, and said ring Furyondand completelysurrounding the lower end of the body, said ring having a tapered upwardly and outwardly flared bottom face for facilitating the guiding of the body to a valve seat engaging position, and said ring having a straight upper face at substantial right-angles to the central axis of the body to define a water abutment face to facilitate seating of the valve as water rushes over the valve while passing through an outlet pipe upon whichthervalve is adapted to be used.

3.-Atank valve comprising a substantially in,- verted cone-shaped flexible body adapted, to seat snugly upon a valve seat, said body having a flexible side walLsaid-side wall having a valve seat engaging portion, a flexible diaphragm forming a partof the body, ribs; connected to the diaphra m and connecteddirectlvinwardlv and in line with,said valve seatengaging portion'of said sidewall, actuatingmeans-connected to the dia: phragm to lift the: iVQvlYQfI'OHlfl valve seat, and said diaphragm adaptedtoflexoutwardly assaid actuating means is lifted to pullsaid ribs and said valve seat engaging portion of said side wall in,- wardly of the body thereby defining depressed dimples in theouterface of the side-wall'of the body and to thereby break the grip of said side wall of the body from a valve-seat and to thereby facilitate the moving ofithe valve to an open position relative to a valve seat.

4. A tank valve comprising a hollow flexible body adapted toiseat snugly upon an outwardly flared valve seat of a flush tank, said body having a substantially inverted cone-shaped formation, a flexible diaphragm carried by the body, an actuating member carriedby said flexible diaphragm, said body having a fiexible valve seat engaging portion toprovid e a'sealing' seat engaging means for said valve, and ribs connected to said diaphragm and also eennected directly in the rear of said valve seat engaging portion of said body forexer'ting a direct'inward pulling action upon said valve seat engaging portior to pull the valve seat engaging portion away from a valve seat to break the sealing'engagement thereof and to thereby release the valve from the valve seat ofa flush tank.- l

5. A tank valve-comprising a hollow flexible body adapted to seat snugly upon abomplernen tary valve seat, said bedy having afsubstlantially inverted cone-shapedformation andhaving a forfexerting a direct aetion :upon said valve seat engagingporti r V V V ertile-. 1 va vese t ,engagglg P n aw ir ma va v s at 9 break the sealing engagement thereofand. to thereby 5 6 release the valve from a valve seat, a rigid ring REFERENCES CITED Secured to and carried by the lower end of said The following references are of record in the body, said ring completely surrounding the lower me of mi atent: end of said body, and said ring having a laterally S p extending flange protruding beyond the lower end 5 UNITED STATES PATENTS of the body and adapted to contact the outlet pipe Number Name Date of a flush tank to hold the flexible valve out of 1,683,877 Palmer Oct. 23, 1928 contact with a valve seat adapted to receive the 1,947,627 Wayne Feb. 20', 1934 same until the valve is properly centered and is 2,015,614 Burnes Sept. 24, 1935 in a, proper seating position. 10 2,139,862 Shesler Dec. 13, 1938 YERVANT H. KURKJIAN. 2, 71,447 Heath Aug. 29, 1939 2,222,856 Robertson et a1 Nov. 26, 1940