Patent Publication Number: US-4843336-A

Title: Detachable multi-purpose self-defending device

Description:
BACKGROUND OF THE INVENTION 
     This invention relates to a detachable multi-purpose self-defending device mainly composed of a grip and a barrel, the former being provided with a pizo siren, a flashlight and a strobe light and capable of connecting a leaf-spring switch and a sensor while the latter with a high voltage oscillating circuit and a pair of electrodes thereby accomplishing the purposes of self-defending, burglar-preventing, disaster-warning, sending signal for help as well as illuminating. 
     Furthermore, the grip can be detected from the barrel as desired hence enabling it to be carried about conveniently, to be produced separately so as to reduce the cost risk thereof and to be adapted to the laws of all countries but still having the functions of calling help, burglar-preventing, disaster-warning and illuminating. 
     It is found that the prior art self-defending device has only one function and either utilizes high voltage electricity to defend against the wicked or a loud voice to arouse other&#39;s attention to scare the wicked. Whereas, the device has but a single function and cannot be used otherwise. Moreover, the high-voltage self-defending device is prohibited to be carried into certain countries and so the user has to buy another one of the other type. Obviously, it is unfit for practical use. 
     It is, therefore, and object of the present invention to provide a detachable multi-purpose self-defending device which may obviate and mitigate the above-mentioned drawbacks. 
     SUMMARY OF THE INVENTION 
     This invention relates to a detachable multi-purpose self-defending device. 
     The primary object of the present invention is to provide a detachable multi-purpose self-defending device mainly composed of a grip and a barrel, the former being detachable from the latter so as to be used alone thereby enabling it to be carried about conveniently, to be adapted to the laws of all countries and to be produced separately so as to lower the cost risk thereof. 
     Another object of the present invention is to provide a detachable multi-purpose self-defending device which utilizes high voltage electricity to defend against the wicked so as to make him faint temporarily and lose attacking ability. 
     Still another object of the present invention is to provide a detachable multi-purpose self-defending device comprising a pizo siren which may send out audio warning signal to scare the wicked and to arouse other&#39;s attention so as to arrest the wicked. 
     Still another object of the present invention is to provide a detachable multi-purpose self-defending device which is provided with an illuminating means. 
     Still another object of the present invention is to provide a detachable multi-purpose self-defending device having a strobe light which may emit rapid, brief and brilliant flashes of light to make the wicked lose conscience momentarily and to send out a signal for help. 
     Still another object of the present invention is to provide a detachable multi-prupose self-defending device which can be connected to a leaf-spring switch inserted between the door and the frame so that when the door is opened, the spring leaves thereof will separate from each other hence actuating the pizo siren and therefore, achieving the prupose of burglar prevention. 
     A further object of the present invention is to provide a detachable multi-purpose self-defending device which can be further connected with a sensor whereby the pizo siren will be actuated at the time when the fume concentration and the temperature exceed the rated value. 
     Other objects and merits and a fuller understanding of the present invention will be obtained by those having ordinary skill in the art when the following detailed description of the referred embodiment has been read in conjunction with the accompanying drawings wherein like numerals refer to like or similar parts and in which: 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of a detachable multi-purpose self-defending device according to a preferred embodiment of the present invention; 
     FIG. 2 is an exploded view of the present invention; 
     FIG. 3 is an exploded view of the present invention from another direction; 
     FIG. 4 is a perspective view of the grip according to the present invention; 
     FIG. 5 is a high voltage oscillating circuit of the present invention; 
     FIG. 6 is a circuit for the storbe light of the present invention; and 
     FIG. 7 is a circuit for the pizo siren of present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     For purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings. Specific language will be used to describe same. It will, nevertheless, be understood that no limitation of the scope of the invention is thereby intended, such alternations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated herein being contemplated as would normally occur to one skilled in the art to which the invention relates. 
     With reference to the drawings and in particular to FIGS. 1, 2 and 3, the detachable multi-purpose self-defending device according to the present invention mainly comprises a grip 1 and a barrel 2. The inner side of the grip 1 is formed with an upper slot and a lower slot 11 while the barrel 2 is provided at the inner side thereof with corresponding protruding members 21 adapted to be connected with the slots 11 so that the barrel 2 can be easily engaged with and detached from the grip 1. 
     On the upper outer side of the grip 1 there are a light switch 12 for controlling an illuminating circuit (not shown), a pizo siren switch 13 for controlling an audio pizo oscillating circuit (see FIG. 7), a strobe light circuit (FIG. 6), and a socket 18 connected with the audio pizo oscillating circuit. The above-mentioned illuminating circuit, strobe light circuit and the audio pizo oscillating circuit are well known in the art and there is no need to describe hear in detail. Mounted on the top of the grip 1 is an illuminating means 15 so as to be able to act as an electric flashlight in the dark. The grip 1 is further provided at one side with a pizo siren 18 for sending out a very loud sound to scare the wicked and also to arouse the other&#39;s attention to arrest him, and a detachable hook member 16 for enabling the self-defending device to be hung on the clothes. Moreover, the grip 1 has at the lower part thereof a room 20 for receiving the battery for the circuits. 
     The grip 1 may be connected to a leaf-spring switch 5 which is inserted between the door and the frame so that when the door is opened, the spring leaves 51 thereof will separate from each other hence actuating the pizo siren and therefore, achieving the purpose of burglar prevention. The grip 1 may be further connected with a sensor 6 whereby the pizo siren 17 will be actuated at the time when the fume concentration and the temperature exceed the rated value. 
     The front end of the barrel 2 is provided with two electrodes 22 constituting a pair of discharging components. On the lower part of the barrel 2 there is a trigger 23 for controlling a high voltage oscillating circuit (see FIG. 5). The high voltage oscillating circuit is connected with the electrodes 22 so that when the trigger 23 is pressed, there will be a high voltage applied to the electrodes 22. However, it should be noted that the current is very small and so the wicked will only be fainted temporarily when he gets in touch with the electrodes 22, but will not be seriously hurted thereby complying with the law. As the above-mentioned circuits, the high voltage oscillating circuit is also well known in the art and there is no need to be described here in detail. 
     Conclusively, the present invention is indeed a detachable multi-purpose self-defending device wherein the grip may be detached from the barrel thereby enabling it to be carried about conveniently, to be adapted to the laws of all countries, and to be produced separately so as to reduce the cost risk thereof. 
     Although this invention has been described with a certain degree of particularity, it is understood that the present disclosure is made by way of example only and that numerous changes in the construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.