Title of Invention

A DUAL FLUSH MECHANISM FOR FLUSHING DIFFERENT QUANTITIES OF WATER

Abstract

We CLAIM: 1. A dual flush mechanism for flushing different quantities of water comprising: a cistern having two links connected to two separate co-axial central tubes; each of the said center tube is having separate floats in separate housings; the inner center tube is connected to a outflow valve and the outer center tube is connected to actuator; each of said link is connected to separate lifters of lifter assembly; said lifters are attached to part-flush and full-flush pusher rods through pushers, said pushers are provided with springs for its free up and down movement,

Full Text

The present invention is a patent of addition to patent application no. 1097/mas/2000 dated 19th December 2000 and relates to a dual flush, mechanism for flushing different quantities of water in the toilets. BACKGROUND OF THE INVENTION The total population has increased and the consumption of water has also increased accordingly. It is the duty and responsibility of each one of us to save water. Otherwise, there is a possibility of calamity. Major factors that lead us to invent this product are increasing population and the limited supply of water. The significant source of water consumption is in flushing toilets. Most of the toilets, flushing systems are designed in such a way that the outflow of water is maximum resulting in wastage of water. Many industrial giants entered in the field of DUAL FLUSHING SYSTEM, the art has then developed toilets that use less water during certain flush cycles. But these devices are much complicated, hard to operate and expensive. These devices are of very poor amazing system due to lack of proper leverage, component ware out in between moving parts and also due to scaling in water. Hence, as a result, continuous attention and frequent maintenance is required on such devices. OBJECT AND THE SUMMARY OF THE INVENTION The object of this invention is to provide a dual flush mechanism for flushing different quantities of water in the toilets according to needs. To achieve the said objective this invention provides a dual flush mechanism for flushing different quantities of water comprising: a cistern having two links connected to two separate co-axial central me; each of the said center tube is having separate floats in separate housings; the inner center tube is connected to a outflow valve and the outer center tube is connected to actuator; each of said link is connected to separate lifters of lifter assembly; said lifters are attached to part-flush and full-flush pusher rods through pushers, said pushers are provided with springs for its fi^ee up and down movement, the arrangement being such that: when a force is applied through full-flash pusher rod on the pusher, the said pusher rod activates the lifter assembly which is connected to the link fitted on the inner center tube, said inner center tube moves upward without disturbing outer tube, thereby opening the outflow valve and allowing the full quantity of water to flush the commode and as water level in the cistern decreases, the float on the inner mbe comes down, thereby closing the outlet; when a force is applied through part-flush pusher rod on the pusher, the said pusher rod activates the lifter assembly which is connected to the link fitted on the outer tube, both the inner and outer center tube move upward along with float and actuator, thereby opening the outflow valve and allow reduced quantity of water to flush the commode and as the water level decreases, the actuator will get released from its rest position and the float will move downwards under the dead weight of water and bring both the tubes down thereby closing the outlet with the said valve. The said two links connected to two separate co-axial center tubes are provided on the top of the flush mechanism with a bracket means. The said outflow valve is provided on the valve seat at the bottom of flush mechanism. The said floats around inner and the outer center tubes have different shapes and sizes depending on the shape and size of the housings. The said dual flush mechanism is made of either plastic or metal, such as polypropylene, placental, Aluminum and brass. Brief description of the drawings The invention will now be described with reference to accompanying drawings Figure 1 shows the dual flushing mechanism according to this invention. Figure 2 shows the valve seat with the outflow valve. Figure 3 shows the exploded view of the dual flush mechanism according to this invention. Figure 4 shows the outer center tube with link (part-flushing). Figure 5 shows inner center tube with link (full-flushing). Detailed Description Referring to the Figure 1, which shows the dual flush mechanism, the link (1.2) is connected to the outer center tube (1.3) on which an adjustable float (1.4) is provided. This float (1.4) and actuator (1.5) have a major role to control the flow of Water towards outlet. The force applied on the full-flush knob (3.1) (figures 1 & 3), is transferred to the pusher (3.3) through pusher rod (3,2), which is connected to the knob (3.1). The pusher (3.3) then activate lifter (3.8.1) of the lifter assembly (3.8) which is having connection with the link (1.1), fitted on the inner center tube (1.6), on which the diaphragm (2.1) is accommodate (fig.2). Due to pusher activation the inner center tube (1.6) moves upward without disturbing outer center tube (1.3), thereby opening the outflow valve (2.1) and allowing the full quantity of water to flush the commode and as water level in the system decreases, the float (3.6) on the inner center tube (1.6) comes down, thereby closing the outlet. The pusher comes to its original position due to spring action (3.3.1) provided in the pusher (see figure 3). The lifter assembly (3.8) is also having mechanical link with the outer center tube (1.3) on which an adjustable float (1.4) is accommodate (fig. 1). When the part-flush knob (3.1.1) is pressed down, the push rod (3.2), which is fitted to the specified Knob (3.1.1), pushes the pusher (3.3), which is accommodated, in the pusher housing (3.4). As a result, the lifter (3.8.2) of the lifter assembly (3.8) is activated, which is having connection with the link (1.2), fitted on the outer center tube (1.3). Due to this hfter activation both the inner (1.6) and outer center tube (1.3) move upward along with float (1.4) and actuator (1.5), thereby opening the outflow valve (2.1) and allow reduced quantity of water to flush the commode. As the water level decreases the actuator (1.5) will get released from its rest position and the float (1.4) will move downwards under the dead weight of water and bring both the tubes down thereby closing the outlet with the said valve (2.1). The pusher comes to its original position due to spring action (3.3.1) provided in the pusher (see figure 3) The floats (1.4 & 3.6) provided on the inner and outer centre tubes (1.6) & (1.3) are of different shapes and size. Figure 2 shows the valve seat (2.2) with the outflow valve. The outflow valve 2.1 is connected to the inner center tube (1.6) and sits directly on the valve seat (2.2). When the lifting of center tube (1.6) takes place, the outflow valve 2.1 opens and lets the water flow through the outlet. Figure 3 shows the exploded view of the dual flush mechanism. At the bottom of the cistern, the valve seat (2.2) is fixed. The inner center tube (1.6) will be inserted in the housing (3.7), further it is locked with the valve seat (2.2). The float 50 mm (3.6) is then assembled with the center tube (1.6) and then incoiporated in the housing (3.7). Housing (3.5) is placed over the housing (3.7) and locked with the lock hinge. Pushers (3.3) are provided with springs (3.3.1) for its free up and down movement are assembled in pusher housing (3.4). The outer center tube (1.3) with the float 45 mm (1.4) and actuator (1.5) which is assembled in prior is then accommodated in housing (3.5). The link (1.1) and link (1.2) is connected to the center tube (1.6) and center tube (1.3) respectively and further pivoted with housing (3.5) by split pins. The pushers (3.2) are assembled with the pusher housing with the springs. This assembly will be locked with the housing (3.5) on top. A holder (3.8) is placed in the provisions provided in the bracket (3.9) is assembled with the total assembly. The bracket (3.9) can be adjusted according to the cistern height. The two links (1.1)&(1.2) are connected to two separate co-axial center tube are provided on the top of the flush mechanism with a bracket.' The holder (3.8) helps the device to align with the holes on top of the lid and at the bottom of the cistern. The lid is then placed on the cistern after accommodating the inlet system. The bush, which is chromium plated with high finish is located in the full proof holder and fastened by M 10 nut. The part and full flush knobs (3.1) which are also chromium plated are fixed with the pusher rod and then inserted in the bush. We CLAIM: 1. A dual flush mechanism for flushing different quantities of water comprising: a cistern having two links connected to two separate co-axial central tubes; each of the said center tube is having separate floats in separate housings; the inner center tube is connected to a outflow valve and the outer center tube is connected to actuator; each of said link is connected to separate lifters of lifter assembly; said lifters are attached to part-flush and full-flush pusher rods through pushers, said pushers are provided with springs for its free up and down movement, the arrangement being such that when a force is applied through full-flush pusher rod on the pusher, the said pusher rod activates the lifter assembly which is connected to the link fltted on the inner center tube, said inner center tube moves upward without disturbing outer tube, thereby opening the outflow valve and allowing the full quantity of water to flush the commode and as water level in the cistern decreases, the float on the inner tube comes down, thereby closing the outlet; when a force is applied through part-flush pusher rod on the pusher, the said pusher rod activates the lifter assembly which is connected to the link fitted on the outer tube, both the inner and outer center tube move upward along with float and actuator, thereby opening the outflow valve and allow reduced quantity of water to flush the commode and as the water level decreases, the actuator will get released from its rest position and the float will move downwards under the dead weight of water and bring both the tubes down thereby closing the outlet with the said valve. 2. A dual flush mechanism as claimed in claim 1 wherein said two links connected to two separate co-axial center tubes are provided on the top of the flush mechanism with a bracket means. 3. A dual flush mechanism as claimed in claim 1, wherein the valve seat is provided at the bottom of flush mechanism. 4. A dual flush mechanism as claimed in claim 1, wherein the shape of the floats provided around in inner and the outer center tube is different. 5. A dual flush mechanism as claimed in claim l to 4, wherein the said dual flush mechanism is made of either plastic or metal. 6. A dual flush mechanism for flushing different quantities of water substantially as herein described with reference to the accompanying drawings.

Documents:

878-mas-2001 claims.pdf

878-mas-2001 correspondence po.pdf

878-mas-2001 description (complete).pdf

878-mas-2001 drawings.pdf

878-mas-2001 form-1.pdf

878-mas-2001 form-13.pdf

878-mas-2001 form-19.pdf

878-mas-2001 form-26.pdf

878-mas-2001 form-3.pdf