US1755542A - Fly exit - Google Patents

Description

L. HICKEL LY EXIT flled June x Ew] Irwe Z mor En@ l g/ Attorney Patented Apr. 22, 1930 UNITED, STATES FRED L. HICKEL, OF RAY, NORTH DAKOTA FLY EXIT Application led .Tune 26,

This invention relates to an improved fly exit, in the form of an attachment for the screen wire of window screens, screen doors, and similar closures.

The invention has more particular reference to a structure which is an original entity characterized by features forming a novel contribution to this art. It covers a practical device which can be easily attached to the screen wire and which will function to provide a reliable and dependable exit for the flies.

The particular details and their relative arrangement and association will become more readily apparent from the following description and drawings.

In the drawings: Figure 1 is an outside elevational view of an exit constructed in accordance with this 2o invention, showing the same att-ached to the screen wire.

Figure 2. is an end view in vertical section, the section being taken approximately upon the plane of the line 2-2 of Figure 1.

Figure 3 is a perspective view showing the entrance portion of the exit.

Figure 4 is a perspective view showing the discharge end thereof, the structure being slightly modified here.

In the drawings, 5 designates the closure screen, which may be that of a screen door, window screen or the like. y

In accordance with the present invention, an openingis cut in the screen and the trap is mounted so that it communicates with the opening, the exit being disposed on the exterior of the screen so that the flies crawling up or down will find their way through the opening and out through the exit. The exit is generally desi nated by the numeral-6 and is in the form of a wire fabric box. It occupiesfan upwardly inclined position as shown in the drawings, but may be disposed downwardly, if desired. The entrance end thereof is provided withV a metal attaching frame 7 which is fastened by small bolts, screws or the like, 8, to a similar frame'9, on the inside of the screen 5. These two frames are disposed around the marginal edges of the openings. The flies in crawling either up or down on 1928. Serial No. 288,445.

the inside of the screen 5 will pass through the frames and into the exit 7 and will crawl upwardly in the exit where they are permitted to escape through the discharge openings 10. These discharge openings are Y formed in either one or two ways. As shown in Figure 3, for example, the strands of wire 11 are brought together in series. For example, I take three or four of the wire strands and bring the crown portions together, so that the strands assume a somewhat converging position. In so doing I provide a series of longitudinally spaced openings 10, through which the exit is made. This structure may be varied slightly as shown in F igure et, wherein instead of bringing the strands of wire together in this hunched relation, the strands are disposed so that certain of them indicated at 12, are unbroken and extend across the crown portion of the discharge end of the exit, while others 13 are cut and left in a somewhat ragged state. This form is preferred, in that, although it allows the flies to escape freely, it tends to prevent the entrance of other flies from the exterior of the door.

As is evident from the description and drawings, this box like exit is simply fastened to the screen and the flies enter through the entrance end, crawl upwardly and escape through the discharge opening 10, as is apparent.

It is thought that by considering the description and drawings, a clear understanding of the construction, operation, and advantages of the invention will be had. y Therefore, a more lengthy description is regarded unnecessary.

Minor changes in the shape, size, and materials coming within the field of invention claimed may be resorted to, if desired.

I claim':

In a structure of the class described, a closure screen provided with an opening, an exit n in alignment with said opening, said exit being in the form of an elongated substantially hollow box constructed of wire mesh material, said exit adapted to extend outwardly from said closure-screen and having one end completely opened to provide an entrance, an

attaching frame fastened to; said entrance, a complemental frame for cooperation with the first named frame, fastenngs for said frame and the opposite end of the exit being provided with a plurality of discharge openings, and said end being disposed in spaced relation With respect to said closure screen.

In testimony whereof I aiix my signature.

FRED L. HICKEL.

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