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Sink straining assemblySink straining assembly description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20090100583, Sink straining assembly. Brief Patent Description - Full Patent Description - Patent Application Claims
1. Field of the Invention The present invention relates to a sink straining assembly, and more particularly to a sink straining assembly that can be closed for storing water in a trough and easily release the pressure from the storing water before draining. 2. Description of Related Art Water is necessary for cleaning things, such as vegetables, fruits, tableware. Consequently, a trough is disposed in an archive for operating. However, some broken bits or kitchen waste may block the draining hole of the trough. As a result, a sink strainer and a stopper are provided for straining the broken bits or kitchen waste during draining and stopping the trough for storing water. A conventional strainer assembly in accordance with the prior art disclosed in U.S. Pat. No. 6,601,242 comprises a strainer and a stopper for selectively blocking the strainer. The strainer has a series of through holes defined therein for allowing the water flow therethrough and straining the broken bits and kitchen waste. For positioning the stopper, the strainer has three ridges upwardly extending from a periphery of the bottom of the strainer and the stopper has three extending legs downward extending therefrom. The ridges and the extending legs complementally correspond to each other for forming a complete structure for closing the bottom of the strainer and holding the stopper in place. The stopper has a diametrical protrusion upwardly extending therefrom for user to easily detach the stopper from the bottom of the strainer. However, the conventional mated sink strainer and stopper has several disadvantages as follow. 1. The ridges and the extending legs complementally correspond to each other such that the stopper must be rotated to make the extending legs complementally align with the ridges before assembling. It is inconvenient. 2. The stopper has three extending legs extending from the periphery thereof such as the central portion of the stopper is suspended midair. As a result, the distal edge of the stopper may be upward warped when the trough is filled with water such that the seal effect is reduced. 3. The user only can use the protrusion to detach the stopper from the strainer. However, the pressure from the water is great when the trough is filled with water. It is difficult to detaching by only pinching the protrusion. The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional sink strainer and the stopper thereof. The objective of the present invention is to provide an improved sink straining assembly that is easily and conveniently operated. To achieve the objective, the sink straining assembly in accordance with the present invention comprises a strainer adapted to be disposed in a drain outlet of a trough and having multiple through holes defined in a bottom of the strainer. An annular rib horizontally and inwardly extends from an inner periphery of the strainer. A stopper is selectively inserted into the strainer for closing the strainer and storing water in the trough. The stopper has a disk formed with a periphery abutting against an inner periphery of the strainer. A plurality of partitions is integrally disposed under a lower part of the disk for abutting the bottom of the strainer. The at least three partitions are radially arranged relative to the disk. A through hole is centrally defined in the disk and a pulling bar extends through the through hole in the disk for selectively closing the through hole in the disk. The pulling bar has an enlarged head formed with a flat for selectively closing the through hole in the disk. A stub centrally downward extends from the enlarged head through the through hole in the in the disk. A spring is compressively sleeved on the stub after the stub extending through the through hole in the disk such that the pulling bar normally closing the through hole in the disk when the pulling bar is in a free condition. The radial partitions of the straining assembly in accordance with the present invention support the disk for balancing the pressure on the disk to prevent the disk from being transformed and provide a good sealant effect between the stopper and the strainer. In addition, the user can previously pull the pulling bar up for releasing the water pressure in the stopper before draining the water in the trough. Consequently, the user only needs to contend with the resistance from the water in the trough without contending with the water pressure. Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. Continue reading about Sink straining assembly... Full patent description for Sink straining assembly Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Sink straining assembly patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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