COMBINATION MOSQUITO KILLING SYSTEM AND INSECT ATTRACTOR
Cross Reference to Related Applications This application is a continuation-in-part of pending application Serial No. 08/761,282 filed
December 6, 1996, which is a continuation-in-part of application serial no. 08/395,910 filed February 28, 1995, now U.S. Patent No. 5,595,018.
BACKGROUND OF THE INVENTION Field of the Invention
The present invention relates generally to devices for attracting and exterminating harmful insects, in particular mosquitoes, and in particular relates to a portable insect killing apparatus which emulates certain characteristics of a mammal to attract insects to the apparatus where they are electrocuted. Background and Prior Art
Insect killing devices are known in the art, see e.g. U.S. Pat. Nos . 5,255,468, 4,852,296, 4,891,904, 5,205,064, 5,020,270, 4,696,126, and 5,301,458.
The conventional insect killing devices heretofore known typically use light to attract insects to an electrocution grid. Aforementioned Patent No. 4,891,904 to Tabita discloses a heating device for heating a liquid insecticide containing carrier, such as a mat or wick, for evaporating the insecticide into the atmosphere.
The known prior art devices are largely ineffective for killing mosquitoes, blood-sucking insects notorious for carrying and spreading
diseases such as malaria and yellow fever, while such devices attract and kill many harmless or environmentally beneficial species of insects. A side effect of such systems is that they are prone to eventual failure as a result of clogging of the voltage grid by the remains of larger insects, which can lead to short circuits, inability of the grid to electrocute additional insects, and other failures. Systems such as disclosed in the ' 904 patent which release toxic poisons into the air clearly are undesirable .
Additionally, the use of such devices in certain establishments such as restaurants, supermarkets or food processing plants is undesirable because of the possibility of contamination by disintegrated insect remains escaping from the device. Additionally, the
"zapping" sound of insects being electrocuted can be repugnant to customers in restaurant establishments.
Further, in areas plagued by multiple species of harmful insects, including mosquitoes and other insects, use of devices based on light as an attractant may succeed in reducing the population of other species of insect, but will fail to eradicate the mosquitoes. There remains a need in the art for a device which is effective for attracting and exterminating mosquitoes, while being environmentally safe and minimizing attraction of other beneficial insects . Additionally, there exists a need in the art for a device which can effectively attract and exterminate mosquitoes in locations where food is being prepared and/or consumed, or where other materials are being processed, which must remain free from contamination by disintegrated insect remains.
Further, there exists a need in the art for a device which is capable of attracting and exterminating multiple species of harmful insects, including mosquitoes, from regions where such multiple species present a problem.
SUMMARY OF THE INVENTION The present invention is directed to solving the above discussed problems. The present invention provides apparatus which attracts mosquitoes by simulating the breathing and motion characteristics of mammals and fowl, which are the primary targets of mosquitoes for sucking blood from which proteins are obtained. In addition, the apparatus according to the invention includes a division for attracting other species of insect which are attracted to light. Further, according to another aspect of the present invention, an adhesive panel is used to trap attracted insects so that they cannot escape from the apparatus, thus eliminating the distribution of insect parts through the air.
The apparatus according to the present invention produces positive heated air streams, preferably mixed with aromatics, and also provides motion, to attract mosquitoes to an electrified wire grid, where they are electrocuted and incinerated.
According to another embodiment, mosquitoes and other insects are attracted to an adhesive surface of a removable and replaceable adhesive panel, where they are trapped, and eventually die. In particular, the present invention provides apparatus for killing insects, comprising
BRIEF DESCRIPTION OF THE DRAWINGS
The invention disclosed herein will be better understood with reference to the following drawings, of which:
Fig. 1 is a partial cross-sectional view of a combination mosquito/insect killing apparatus according to a first preferred embodiment of the invention;
Fig. 1A is an elevational view of adhesive panel 34 of Fig. 1; and Fig. 2 is a partial cross-sectional view of a mosquito killing apparatus according to a second embodiment of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Fig. 1, my improved mosquito/insect killing system is generally designated by reference numeral 10. System 10 includes a housing 12, and a base 14 with removable collection tray 14a. A partitioning wall 12a divides the unit into an insect-attracting section 13 and a mosquito- attracting section 15. Section 15 includes a heating tower 16 containing a heat-generating element 18, such as a quartz tube, an electric fan motor and associated fan blade 20, air intake apertures 24, and air outlet apertures 26. Section 15 further includes an electrified electrocution grid 28. A detailed description of the function of such a heating tower is provided in my prior United States Patent No. 5,595,018, incorporated in its entirety by reference herein. Briefly, mosquito killing section 15 attracts mosquitoes by actively projecting multiple heated air streams 27, coupled with a wide variety of aromatics that simulate animal body heat and, in conjunction with negative
air streams 25 flowing into the apparatus, simulate human and/or animal breathing. A protective mesh or screen 30 is provided at the outside of section 15 to prevent human contact with the electrocution grid 28, while having a mesh size sufficient to allow mosquitoes to pass therethrough.
Base 14 includes a removable collection tray 14a into which insect remains accumulate from electrocution grid 28. The tray 14a can be periodically removed to dispose of the accumulated remains and replaced in the base 14. Base 14 also may be provided with a low-speed motor for slowly rotating housing 12 with respect to base 14, thereby simulating human and/or animal motion as a further attractant to mosquitoes.
Section 13 of housing 12 contains one or more light sources 32a, 32b. Light sources 32a, 32b may be conventional incandescent or fluorescent light bulbs, or other equivalent sources of light. Also provided in section 13 is an adhesive panel 34, which contains a sticky surface to which insects are adhered once making contact with the surface, and from which adhered insects cannot extricate themselves. The sticky surface may be provided by an application of glue or other suitable and well- known substances having the desired adhesive properties .
As shown in Fig. 1A, insects 38 attracted into the section 13 by light from the sources 32a, 32b alight on the surface of adhesive panel 34 and become trapped. Fig. 1 shows alternate placement of light sources, either in front of (source 32a) or behind (source 32b) the adhesive panel 34. If the
light source 32b is employed as the sole light source, panel 34 may include pinprick holes 36 to allow light to pass through, such that insects will be directly attracted to the adhesive panel. Alternatively, if light source placement 32a is chosen, insects attracted into the section 13 will naturally seek to alight on a surface, and thus will eventually alight on the surface of the adhesive panel 34. Fig. 2 shows an alternate embodiment of a mosquito killing apparatus 50 according to the present invention, which includes a housing 52 containing a heating tower 16 as illustrated in Fig. 1, and one or more adhesive panels 34. In this embodiment, heated air streams simulating mammalian breathing attract mosquitoes into the interior of the housing where they are trapped when alighting on the surfaces of the adhesive panels. The adhesive panel also may be provided in a cylindrical configuration, with pinprick holes 36 as shown in Fig. 1A, whereby the heated air streams may pass through the holes 36 to attract mosquitoes directly onto the adhesive surface of the panel.
The invention having been thus described, it will become apparent to those skilled in the art that the same may be varied in many ways without departing from the spirit and scope of the invention .
For instance, in addition to a quartz heating tube, the heating element 18 may be equally implemented by a ceramic, silicon or foil heater. Additionally, either electrocution grids or adhesive panels may be provided in both sections 13 and 15, instead of the configuration described. In
situations where the adhesive panel 34 is used in conjunction with the heating tower, the panel 34 may be made of or include a heat conductive material such as aluminum foil to enable the heat produced by the heater to be transferred to the adhesive panel. Further, a supply of liquid may be provided in the base 14 coupled to the heated air stream by a wick, to provide the addition of moisture and/or pheromone attractant to the heated air stream to further increase the mosquito-attracting property of the apparatus .