The present invention relates to shark repellent marine products and shark repellent arrangement. In particular, the invention relates to a shark repelling arrangement for a water craft and marine equipment and apparel.
Every year there are numerous injuries and loss of human life caused by shark attacks. The users of small watercraft such as body boards, surfboards, sail boards, water skis, scuba diving equipment, life jackets, life rafts and small boats are especially vulnerable to such attacks. Accordingly, there has been a search for a system able to protect such users from shark attacks.
Some of the systems previously developed for protection from sharks include applying electrical pulses to an attacking animal. Possible disadvantages of such systems are the need to carry the associated equipment, which, depending on the design, can be large and heavy. In addition, in order to use such a defence system based on electrical pulse generation, the person should be aware of the impending shark attack which is often not the case.
Systems based on shark repellent substances that are manually released to prevent an attack have also been used. One such system is disclosed in U.S. Pat. No. 5,616,333, by Haas. According to this system, a shark repellent patch is provided which includes a highly flexible impermeable membrane sealing a shark repelling substance to a highly flexible base. Adhesive can be disposed on the other side of the base to allow attaching the shark patch to a selected surface. The membrane is provided with imperfections that allow a user to pull a tab connected to the membrane and to shear the membrane, upon an application of predetermined force. One disadvantage of such a system is associated with the fact that the highly flexible membrane is vulnerable to everyday use of the craft which it is attached to. Thus, the user has to remember to attach the patch before, as well as detach it after, each use of the watercraft. Another disadvantage relates to the fact that, again, the person using the craft has to be aware in advance of the shark attack so as to attempt to pull the tab and release the shark repellent liquid inside the membrane.
Accordingly, it would be advantageous if a system is designed that provides visual display to repel marine animal under the water.
According to a first aspect the present invention provides a watercraft in the form of a surfing board comprising a substantially planar body; a display unit adapted to dispose on the body; wherein the display unit is adapted to display at least one animated image.
A preferred embodiment of the invention will now be described by way of example only and with reference to the accompanying drawings wherein:
As illustrated in
Referring to
The display may extend along the entire surface of watercraft 20. An alternative configuration, where the display 23 is attached without the protection layer is shown in
It should be appreciated that the mechanical characteristics of the display 23 should be able to withstand the everyday wear and tear associated with the use of watercraft 20.
The display 23 is adapted to provide multiple functions, such as displaying advertisements, signs, signals, news, etc. In one preferred embodiment, the display 23 is adapted to display shark repelling images.
In one preferred embodiment, the display 23 is in the form of a lenticular painting 30 as shown in
The interlacing process is preferably prepared with computer and suitable graphic manipulation software. However, interlacing process can also be accomplished by a manual means during or after the creation of the individual images. It is appreciated that durable ink such as solvent based inks are used to print the base image 32.
The lenticular lens 33 is preferably formed from a substantially transparent thermosetting polymer or plastic resins such as PVC, APET, PETG, Polycarbonate, Polypropylene, acrylic glass (PMMA), and Styrene. Preferably, the materials for making the lenticular lens are capable of withstanding UV radiation and a wide temperature range. Examples of such materials include acrylic and polycarbonate products.
The lenticular lens 33 has a non-planar surface defining a series of parallel lenticules 34 which are elongated parallel formations of narrow width and substantially uniform size and shape. These parallel lenticules 34 have a predetermined focal length correlated with the thickness of the polymer coating so as to focus substantially at the surface of the base image 32. The resulting base image 32 and polymer lenticular lens 33 form the composite lenticular painting 30 that provides a desired three-dimensional image, moving image, or multiple image visual effect. With the images 31 of
In another preferred embodiment, the display 23 is in the form of digital display which is controlled by a micro-controller connected to a power supply unit that provides power to the digital display and the micro-controller. The micro-controller comprises memory storage which is adapted to store images, for example the images of
It is appreciated that other type of images may be provided for displaying on the display 23 for other purposes, such as for advertisements and signs.
In another embodiment, as illustrated in
The tube may extend along the entire periphery of watercraft 20, or along a section of this periphery. An alternative configuration, where the tube is externally attached is shown in
The containing means for the shark repellent may be a single continuous tube, or it may also be two or more containers. The containers may be in the form of smaller tubes, capsules, beads etc.
A configuration where the containing means including the shark repellent comprise a plurality of longitudinal container units 44, again disposed adjacent the periphery of the watercraft, is illustrated in
Although the containers represented in
It will be appreciated that the disclosed shark repelling arrangement for a watercraft is relatively robust and is designed such that a shark bite automatically releases the contained shark repellent in the water, regardless of whether the user of the watercraft is aware or not of the shark attack. It should also be appreciated that the disclosed arrangement is not limited to the particular embodiment described in here, but also covers other arrangements using similar concepts. For example, any light watercrafts, using the above disclosed arrangements, also fall within the scope of this invention.
The expressions “comprising” and “including” in their grammatical variations, as used herein, are used in the inclusive sense of “having” and not in the inclusive of “consisting only of”.
Number | Date | Country | Kind |
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2008902781 | Jun 2008 | AU | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/AU2009/000694 | 6/2/2009 | WO | 00 | 2/23/2011 |