1. Field of the Invention
The present invention relates generally to a protection device and, more particularly, to a submersible protection device that can be safely used underwater on targets coming into close proximity to a user.
2. Description of Related Art
Protection against aquatic animals can be a problem associated with marine sports, such as diving, fishing, and the like. For example, divers may encounter dangerous aquatic animals, such as sharks, for instance, while performing a salt water dive. To provide desired protection from such aquatic animals, devices have been developed to repel animals from close proximity to the devices.
Certain prior art devices are directed to providing an electric field, which may be used to incapacitate or repel an aquatic animal or, in some cases, actually kill the aquatic animal when it enters an area within a certain range from the device. A common problem associated with these types of devices is safety of the user of the device, as a number of the devices may inadvertently inflict harm upon or even kill the user.
One specific prior art device is disclosed in U.S. Pat. No. 4,667,431 issued to Mendicino. The '431 patent discloses a device comprising an elongate prod having an end including a pair of electrically conductive prongs. Due to the elongate nature of the prod, a target must be located at a sufficient distance from the user (i.e. the length of the prod) so the prongs can be caused to contact the target. Accordingly, use of the prod on a target within very close proximity to the user (i.e. within the length of the prod) is not facilitated. Further, the prongs deliver a current of between 1 and 5 amperes to the target, and therefore must be located at a sufficient distance from the user to avoid the user being seriously injured or killed from the 1 to 5 ampere current.
There exists a need to develop a device capable of providing protection from aquatic animals that is capable of being used on targets coming into very close proximity to a user without the user being injured by the device.
Harmonious with the present invention, a submersible protection device capable of being used on targets coming into close proximity to the user without a substantially risk of injury to the user when the device is used properly has been discovered.
In one configuration, the device includes a variable output resistor and an output voltage switch which can be manipulated to provide varying output voltages. In another embodiment, a voltage supply may be changed to provide varying output voltages.
It is understood that other embodiments of the present invention will become readily apparent to those skilled in the art from the following detailed description, wherein only various embodiments of the invention are described and shown by way of illustration. As will be realized, the invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not as restrictive.
Embodiments of the present invention advantageously provide a submersible protection device comprising a housing, at least two electrically conductive probes, an electric circuit, and a voltage supply. The housing defines a substantially fluid tight chamber therein, and the at least two electrically conductive probes extend from the housing. The electric circuit is disposed in the substantially fluid tight chamber of the housing and is in electrical communication with the electrically conductive probes. The electric circuit is adapted to provide an output voltage to the electrically conductive probes in the range of about 80,000 volts to about 160,000 volts, and the electric circuit adapted to provide an output current to the electrically conductive probes of less than about 500 milliamps. The voltage supply delivers an input voltage to the electric circuit.
Various aspects of a submersible protection device are illustrated by way of example, and not by way of limitation, in the accompanying drawings, wherein:
The detailed description set forth below in connection with the appended drawings is intended as a description of various embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without these specific details. In some instances, well known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the invention.
In the description that follows, a submersible protection device is described that is useful for electrically shocking an aquatic animal or other target (hereafter “target”) that is located in close proximity to a user of the device. In general, the term “target” is meant to encompass a wide variety of aquatic animals, as well as other objects that the user may desire to electrically shock, such as another human being posing a physical threat to the user, for example. It shall be understood that the target to be shocked need not physically touch the device in order to be shocked, as the electrical discharge emitted by the device can travel a distance outwardly from the device.
The description also provides a specific example that includes exemplary dimensions. This example is provided as a way to show the relative dimensions of the structure of the present submersible protection device and is not intended to limit the invention only to the specific dimensions described.
Referring to the drawings,
The housing 12 is formed from a water resistant and non-conductive material, such as a polymeric material, for example, although any suitable type of water resistant and non-conductive material could be used to form the housing 12 as desired. In the embodiment shown in
As shown in
As shown in
The electrical discharge portion 14 of the device 10 comprises a plurality of electrically conductive probes or electrodes 24A, 24B (two shown in
In the embodiment shown in
In use, the desired output voltage to be provided from the circuit 16 to the probes 24A, 24B is selected by the user adjusting a switch 34 that is disposed on the housing 12 and is in communication with the circuit 16. As shown in
The device 10 is powered on and off by the user depressing a power button 34, which is located on the housing 12 and is in communication with the circuit 16. As will be readily apparent to those skilled in the art, other means for powering the device 10 on and off could be used without departing from the spirit and scope of the invention. Once the device 10 is powered on, the user depresses a trigger 36 that is also disposed on the housing 12 and is in communication with the circuit 16. When the trigger 36 is depressed, the output voltage and the output current are provided from the circuit 16 to the probes 24A, 24B, which emit an electrical discharge outwardly therefrom. It is understood that the location of the trigger 36 shown in
The electrical discharge emitted from the probes 24A, 24B electrically shocks the target. It has been discovered that the device 10, at the exemplary operating parameters discussed above, is capable of emitting an electric shock in salt-water to a target located within about 4 inches of the device 10, and that and the device 10 is capable of emitting an electric shock in fresh-water to a target located within about 5 inches of the device 10. While the device 10 electrically shocks the target, the target is ideally incapacitated or deterred from the location of the device 10 and the user. Accordingly, the device 10 provides protection for the user from the target. Provided that the user properly uses the device 10 (i.e. the user does not come into close proximity to the discharge portion 14 of the device 10), the user ideally remains substantially unharmed by the device 10. It is noted the electrical discharge has been discovered to travel generally axially outwardly from the probes 24A, 24B of the device 10, and not in a direction back toward the user.
Since the length L of the device 10 is shorter than typical prior art underwater electrical discharge protection devices, the device 10 may be used when targets are in very close proximity to the user where such prior art devices would not be effectively usable for their associated electrical discharge function. Further, since the output current emitted from the probes 24A, 24B is sufficiently lower than that emitted by prior art devices, risk of injury to the user is believed to be substantially reduced. Additionally, since the device 10 can be used with only one hand, the other hand of the user is free to perform other functions. Thus, unlike prior art devices, the present device 10 is configured to be used one-handed and even if two hands are used, the present device 10 is usable even when the target is in close proximity to the user.
The electrical discharge portion 114 comprises a plurality of electrically conductive probes or electrodes 124A, 124B (two are shown in
Optionally, as illustrated in
Use of the device 110 is substantially similar to use of the device 10 described above. However, the device 110 in
The previous description is provided to enable any person skilled in the art to practice the various embodiments described herein. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments. Thus, the claims are not intended to be limited to the embodiments shown herein, but are to be accorded the full scope consistent with each claim's language, wherein reference to an element in the singular is not intended to mean “one and only one” unless specifically so stated, but rather “one or more.” All structural and functional equivalents to the elements of the various embodiments described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims. No claim element is to be construed under the provisions of 35 U.S.C. §112, sixth paragraph, unless the element is expressly recited using the phrase “means for” or, in the case of a method claim, the element is recited using the phrase “step for.”