1. Field of the Invention
 The present invention relates generally to a lint trap device to trap lint and hair discharged from a washing machine. Particularly, the improved lint trap employs an advanced feature of a plurality of mesh fins to form a secondary screen inwardly adjacent to the base tubular plastic net for increasing the efficiency of filtering performance and easy maintenance.
 2. Description of the Prior Art
 One of the well-known problems with clothes washers and other laundry machines is that, as water is discharged, it carries with it lint and hair from the clothes that have been washed. The discharged lint and hair can cause problems with drains, pipes, pumps and septic tanks in a drainage system. If the lint and hair can be trapped by a filtering device before the discharge of water, some of the problems can be eliminated.
 The ideal location for filtering the lint and hair is the discharge hose of the washer. Thus, if a filtering device such as a lint trap were attached to the discharge hose of a washing machine, it could effectively filter the lint and hair as water empties into a sink or basin.
 Even though a number of filtering devices and lint traps have been developed and used for this purpose over the years, conventional filtering devices still have many problems, including maintenance difficulty, draw back or bursting off of the lint trap due to the clogged filters.
 In order to solve such a clogging problem, some filtering systems use a coarse mesh with double or multiple filtering elements. Even though the coarse mesh of the plastic net helps to reduce flowing resistance at the pumping cycle, it will deteriorate the efficiency of filtering performance Furthermore, most conventional filtering devices using a coarse mesh cannot effectively filter human hair. Because human hairs are longer than clothes lint and have a smooth, oily surface, most human hairs easily escape through the coarse plastic net. Thus, it causes a serious problem in the drainage system, especially in barbershops or beauty salons where towels and clothes are washed.
 Some filtering systems adopt relatively fine mesh net or multiple filtering elements to improve filtering performance. However, systems adopting fine mesh experience increased flowing resistance when abundant water is suddenly discharged from the washer. The fine mesh net accumulates a lot of lint in a short period of time so that the plastic net is easily clogged. Therefore, such a system requires frequent maintenance to replace a lint trap or dispose of collected lint. If it is not cleaned on time, the discharging passage of the washing machine may become blocked and cause damage to the washing machine. If the lint trap attachment is not strong, the lint trap will burst out when abundant water is suddenly pumped out at the end of the washing cycle.
 Many conventional filtering systems are designed to use a disposable filtering element, while some are designed to use reusable filtering elements. However, most conventional filtering systems adopting reusable filtering elements have difficulty removing clogged lint from the plastic net.
 Therefore, an improved lint trap, which has high filtering capability for extended use avoids the aforementioned clogging problems and provides for easy maintenance.
 To overcome the above-mentioned problems of the conventional filtering system, a new concept of an improved lint trap is hereby introduced.
 An objective of the present invention is to provide an improved lint trap comprising an attachment device, a tubular-shaped plastic net as a main body, and an end-sealing device. The attachment device further comprises a plastic strap having a plurality of teeth at the proximal strap end and a plastic receptacle having teeth at the inner, upper surface for engaging each other. An end-sealing device attached at the proximal end of the tubular plastic net comprises a pair of end rims and a sealing slider.
 Another objective of the present invention is to provide a tubular plastic net of the main body having a plurality of mesh fins being formed on each thread of the plastic net for increasing the efficiency of filtering performance. A pair of mesh fins is disposed on both sides of every individual thread of the plastic net around each perforation or opening.
 Another objective of the present invention is to provide a plurality of paired mesh fins disposed inwardly at a certain angle to form a secondary screen adjacent to the base plastic net. A root of mesh fin is stiff enough not to be bent or broken when abundant water is suddenly discharged from the washing machine. The length of the mesh fins is the same as or a little longer than that of the individual perforations of the base plastic net. The diameter of the mesh fins is approximately one-fourth that of the base plastic net. However, the tips of the mesh fins are relatively flexible and curly to easily catch lint and human hair from the discharged water. Due to the formation of a secondary screen inwardly adjacent to the base tubular plastic net, most lint and hair discharged from the washer are trapped and suspended at the tips of the paired mesh fins.
 Therefore, because they are suspended apart from the base plastic net, the collected lint and hair easily fall from the lint trap. Consequently, the lint trap of the present invention enables the collection and easy removal of more lint and hair.
 The following description of the preferred embodiment is given with reference to several views of the drawing, in which:
 In order to achieve the above-mentioned objectives of the present invention, an improved lint trap device
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 The root of paired mesh fins is stiff enough not to be bent or broken when abundant water is suddenly discharged from the washer. The length of the paired mesh fins is the same as or a little longer than that of the individual perforation of the base plastic net. The diameter of the paired mesh fins is approximately one-fourth that of the base plastic net
 The paired mesh fins
 Because human hairs are relatively longer than clothes lint and have a smooth, oily surface, most human hairs easily escape through the conventional plastic net. Since most conventional filtering devices and lint traps do not effectively trap human hair, it causes a serious problem in the drainage system, especially washers or laundry machines used in barbershops or beauty salons for washing towels or clothes.
 The secondary screen formed by the paired mesh fins of the present invention is excellent for trapping human hair. Thus, the improved lint trap device of the present invention enables effective trapping not only of clothes lint, but also of human hair.
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 As shown in FIGS.
 While the present invention has been described in detail with its preferred embodiments, it should be understood that further modifications are possible. The present application is therefore intended to cover any variations, uses or adaptations of the invention, following the general principles thereof, and includes such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains within the limits of the appended claims.