Патент USA US3045262код для вставки
July 24, 1962 J. A. sTuAR?', JR 3,045,249 FLUSH VALVE Filed Aug. 31, 1959 INVENTOR James A. SZ‘QQ/"Zii: BY Mun/7, Licz’dy, Daniels 5 Marc/Q ATTORNEYS United States Patent C?ice ‘ 1 _ amaze Patentedduly 24, 1962 r 2 - , FIG. 2 is an enlarged fragmentary detail of the ball 3,045,249 ?oat valve and valve seat; FLUEHVAL‘VE James A. Stuart, Jn, Danbury, Conn. (Rte. 2, Brook?eld, Quinn.) Filed Aug. 31, 1959, Ser. No. 837,234 1 Claim. (Cl. 4-56) I . . FIG. 3 is a front view partly in section showing the ?ush tank of the present invention as a unit installed with 5 in the shell of an existing tank; and ’ ,‘FIG. 4 is a partly broken section of a modi?ed form structions and in particular to a new and useful axial of the ?ushing valve of the ‘present invention. Referring to the drawings in particular, the invention as embodied therein includes a ?ush tank generally desig movement type ?ushing valve. nated Ill including a bottom wall 12 having a flush drain The invention involves a valve and associated mecha nism for dumping a tank full of water for use in sani tary systems, such as lavatories. Axial movement ?ush ing valves have ‘been known prior to the present inven opening 14. Water under pressure is directed into the tank lti through a conduit 16 which flows into the tank to completely ?ll the tank when a ?ush valve mechanism, This invention relates in general ‘to ?ush tank con tion but all require complicated centering mechanisms and are not reliable in their operation. Such valve con structions also include a multiple number of springs and associated device which are provided ‘to insure return of the valve and the operating mechanism to the closed seat generally designated .18, is in the closed position. In accordance with the invention, the ?ush valve mech anism l8 cooperates with a cylindrical valve seat ?tting generally designated Ztl, which is externally threaded and adapted to be fastened to the tank by a nut 22. The valve seat ?tting 24} is provided with an internal 20 bevelled valve seat 24 which cooperates with a ball ?oat position. ~ In accordance with the present invention, there is pro- ' valve 26 to close the ?ush discharge. The valve seat 24 vided a ?ushing valve mechanism which includes an elon is spaced inwardly from the interior walls of the ?tting gated cylindrical ?tting which is secured to the top of the Ztl and downwardly from the bottom wall 12 of the tank ?ushing tank and extends downwardly therein to pro 10 in order to provide a recessed area for the seating of vide a centering guide for a hand operated vertically re 25 the ball ?oat valve 26. ciprocable valve control rod. The arrangement includes The ball ?oat valve 26 is provided with an upstand ing hollow cylindrical portion 28 having vertically elon a valve seat ?tting which is secured vto the tank ?ush drain and which provides an internal beveled valve seat for a gated slots 3% and, 32 extending inwardly to the central bore on each side thereof. A long control rod 34 is ball ?oat valve which is connected to the end of the con slidably ?tted within the cylindrical portion 28 and is pro trol rod. When the ball ?oat valve is seated, the upper. vided with a through bolt 36 which extends outwardly handled end of the control rod extends slightly above the top of the tank. The cylindrical ?tting is provided into each of the slots 3t} and 32. ' The upper end of the control‘rod 34 is guided for with internal washers to permit reciprocating of the con vertical reciprocable movement within a cylindrical guide trol rod withwater leakage through the interior of the cylindrical members. The arrangement is such that 35 ?tting, generally designated 38, which is threaded into a cover 40. The upper end of the guide ?tting 38 is when the control rod raised, the ball valve is lifted above held above the cover by a nut 42 and the control rod its seat and the liquid in the tank is discharged through 34 extends upwardly through the center of the ?tting the ?ush drain. The ball valve is designed to ?oat down and is capped by a knobbed handle 44. d Wardly on the top of the liquid and seat under the down The guide ?tting 38 is provided with two vertically ward urging of the weight of the control rod and the spaced internal ledge areas 46 and 48 which hold durable force of incoming fresh water. washer seal members 5%) and 52 which hold the control Accordingly it is an object of this invention to pro rod against lateral movement and seal the working parts vide an axial movement ?ush valve. A further object of this invention is to provide a ?ush 45 against water leakage. The tank 10 is ?ushed by grabbing the handle 44 and tank having a ?ush drain ?tting connected to- the bottom raising it. Since the through-bolt 36 rides in the slots thereof including an internal valve seat which is opened 3% and 32,, the rod may move upwardly an initial dis‘ and closed by a ball ?oat valve connected to the lower tance without lifting the ball ?oat valve 26. The valve end of a control rod operated from above the tank and guided for vertical reciprocal movement. 50 26 may then be lifted clear oil its seat and above the opening 14. Water in the tank will immediately flow Another object of the present invention is to provide a through the opening and empty the tank while a fresh sup~ compact ?ushing unit which in addition to being useable ply will flow inwardly through the inlet conduit 16. as a complete ?ush tank, may also be inserted, within Suitable vent means (not shown) may be provided to the shell of presently’existing flush tanks to enhance the operation of the tank by substituting the same for the 55 permit rapid ?lling of the tank through conduit 16 after existing mechanism. the valve mechanism is moved to a closed position. When the handle 44 is released, the ?oat valve rides on the top of the water and is gradually lowered as the ?ushing valve mechanism which is simple in design, Water recedes precisely into alignment with the valve seat rugged in construction and economical to manufacture. 24. The lost motion connection between the control rod The various features of novelty which characterize the 60 34 and the ball ?oat valve 26 permits slight swinging invention are pointed out with particularity in the claim movement of the valve until it ?nds its proper seat under annexed to and forming a part of this speci?cation. For the urging of the outflowing water. The valve is very Yet another object of the invention is to provide a a better understanding of the invention, its operating light and floats on its seat until the control rod moves advantages and speci?c objects attained by its use, refer further downwardly audits bottom end 54 contacts the 65 ence should be had to the accompanying drawings and bottom 56 of the interior bore of the portion 28 to force descriptive matter in which there is illustrated and de— the valve to fully seat. scribed a preferred embodiment of the invention. Referring to FIG. 3, the ?ush tank 1%, which is of In the drawings: the same construction as hereinbefore described, is in FIGURE 1 is a transverse section through a ?ush tank 70 serted within the casing 50 of an existing well-known having a ?ushing valve constructed in accordance with ?ush tank. The ?ushing unit of the present invention is the invention; 1 adaptable to be substituted for present-day mechanisms 3,045,249 4 within an existing ?ush. tank and for this purpose the han dle 58 of the ?ushing unit is provided with an opening 53 adapted to accommodate a rod 54 attached to a well known valve handle 55 of the type existent in use on present-day ?ush tank units. The integral ?ushing unit 10 is connected by any suitable means to the inlet 56 and outlet 57 found on present-day units. It will therefore be seen that, according to the present invention, the ?ush maintenance care. Both the construction and the in stallation of the parts are inexpensive. While a speci?c embodiment of the invention has been shown and described in detail to illustrate the applica tion of the invention principle, it will be understood that the invention may be embodied otherwise ‘without depart ing from such principles. I claim: A ?ushing device comprising a tank having a top present-day mechanisms to provide for the simple and 10 wall, a bottom wall having a drain opening, means to di rect liquid under pressure into said tank, a valve seat e?icient ?ushing operations to make the advantages avail sleeve member having an internal valve seat detachably able for old as well as new structures. connected to said tank at said drain opening, a hollow In FIG. 4 a modi?ed form of the flush valve mecha ing’unit is so constructed as to be readily substituted for nism of the present invention is shown, in which the han dle 44 carries a rod 60. sealing and guiding member connected to and depending The rod is located within a 15 from said top wall, a control rod vertically reciprocable sleeve 61. Intermediate the rod and sleeve throughout most of its length is sealing material 62. In this con struction the lost motion connection between the rod 61) and the ?oat valve 63 is also provided. In the operation of the ?ushing valve mechanism in this modi?ed form, 20 it will be noted that the base of the sleeve 61 will act as a stop preventing further upward movement of the ?oat valve 63 when the top of the hollow cylindrical portion slidable in said sealing and guiding member, said sealing and guiding member extending downwardly from said top a substantial distance and formed with a plurality of spaced-apart centering guides to prevent lateral swinging of said control rod, said sealing and guiding member be ing substantially cylindrical and including an upper por tion which extends through and is detachably connected to said top, andha downwardly depending portion having at least two vertically spaced portions in bearing and seal this modified form permits the handle 44 and rod 60 25 ing contact with said control rod, and a ball ?oat valve connected to the lower end of said control rod and en to return the ?oat valve to closed position without the gageable with said valve seat to close said drain and necessity for positive assisting means. being movable off said seat to open said valve and drain Thus the invention‘provides a ?ush tank construction said tank upon upward movement of said control rod. including a ?ushing valve mechanism made of three easily installed sub-assemblies; namely, a valve seat sleeve 30 ' References Cited in the ?le of this patent member which is threaded onto the bottom drain open ing of the tank, a control rod and ?oat valve assembly UNITED STATES PATENTS which extends upwardly inside the tank, and includes a 449,242 Beekman et a1 _________ __ Mar. 31, 1891 handle located above the tank, and a control rod guiding 1,606,926 Delany ______________ _.. Nov. 16, 1926 and sealing cylinder which is connected to the top of the 3 UK 2,502,262 Labiche _____________ __ Mar. 28, 1950 64 engages the same. In addition, the construction of tank and includes'a portion extending downwardly into the tank for a substantial distance to form a ‘guide for FOREIGN PATENTS the control rod as it is reciprocated either downwardly to move the ?oat valve into contact with the valve seat to close off the ?ushing drain or upwardly to lift the 40 ?oat- valve off the valve seat and effect complete drain age of the liquid from the tank. These sub-assemblies may be easily and quickly installed and require minimum 20,651 Great Britain ________________ .._ 1905 OTHER REFERENCES Meyer: German application 1,017,096, printed Oct. 3, 1957 (K1 85h 12/03).