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  Apparatus and method for magnetizing a dartRelated Patent Categories: Games Using Tangible Projectile, Projectile, Per Se; Part Thereof Or Accessory Therefor, Arrow, Dart, Or Shuttlecock; Part ThereofThe Patent Description & Claims data below is from USPTO Patent Application 20070087873. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an apparatus and method for magnetizing a dart, wherein magnetizing coil or permanent magnet is used as a magnet charger to temporarily magnetize the temporarily magnetizable dart. [0003] 2. Description of the Prior Art [0004] Most of the magnetic induction type electronic dartboards are provided with permanent magnetic dart. [0005] U.S. Pat. No. 5,775,694 discloses a magnetic dart as shown in FIG. 1, wherein the body 10 of the dart is made of non-magnetic induction material, in the front end of the body 10 is inserted a strong magnetic member 11 that protrudes therefrom, and an electromagnetic induction dartboard is used to record the score automatically. The aforementioned magnetic dart has been in existence for a long time, however, it still has the following disadvantages: [0006] First, the strong magnetic member 11 in the front end of the body 10 will constantly produce magnetic force during the course of use, transport and storage, and will have adverse effect on the user's health after a long time of use. [0007] Second, the magnetic force of the magnetic member 11 will affect the use of electronic instrument, mobile phone, and various electronic products. [0008] Third, according to the rule of today's dart competition, the dart must include a body, a scoring tip connected to the body, a shaft, and a flight connected to the shaft. The tip may be soft tip or hard tip. However, there is no scoring tip on the front end of the body 10, therefore, this conventional dart cannot be used in formal competition. Further, the player can't experience the penetrating strength when throwing dart; and the dart game gives the player no pleasure. [0009] TW Serial No. 089,127,002 discloses an automatic scoring method suitable for electronic dartboard and its device, wherein the magnetic dart 12 is thrown to the dartboard 13, the respective scoring areas of the dartboard 13 are provided with coils 14, and the coils 14 in the scoring area to which the magnetic dart 12 is thrown serve to output the induction signals to create a score. And the tip 15 of the magnetic dart 12 is magnetic. Although this magnetic dart overcomes the problem of the pleasure of the dart game and complies with the rule of the formal dart competition, it still has the following disadvantages: [0010] First, the tip 15 of the magnetic dart 12 is magnetic, due to the effect of the magnetism on the health, users don't want the dart to have magnetism when playing game of dart, otherwise, the player will feel uncomfortable after using the strong magnetic dart for a long time. Therefore, a professional player always hopes that the dart can be selectively provided with magnetism, however, the conventional product doesn't provide such a choice to the user. [0011] Second, the tip 15 of the magnetic dart 12 is magnetic and is not detachable, and in addition to permanent magnetism, the tip 15 should also have certain degree of hardness and toughness (the existing permanent magnetic alloys include Fe--Cr--Co alloy, and Mn--Al--C alloy). Thereby, the cost of the tip 15 of the magnetic dart 12 is too high. [0012] The present invention has arisen to mitigate and/or obviate the afore-described disadvantages. [0013] The present invention has arisen to mitigate and/or obviate the afore-described disadvantages. SUMMARY OF THE INVENTION [0014] The primary objective of the present invention is to provide a method for magnetizing a dart, comprising the steps of: [0015] A. preparing a temporarily magnetizable dart; [0016] B. charging the dart with a magnet charger; [0017] C. throwing dart and scoring; and [0018] wherein magnetizing coil or permanent magnet are used as magnet charger to temporarily magnetize the temporarily magnetizable dart, the temporarily effective magnetism will be produced on the magnetic induction material of the dart, and the temporarily effective magnetism will disappear within a predetermined period of time, so that the user doesn't have to worry about the adverse effect of the magnetic force. [0019] Another objective of the present invention is to provide a magnet charging apparatus for a dart, the dart can be selectively provided with magnetism according to the user's requirement. The dart is made of temporarily magnetizable material, and magnetizing coil or permanent magnet of a magnet charger are used to temporarily magnetize the temporarily magnetizable dart, so that the temporarily magnetizable dart can produce the effective magnetism at any predetermined period of time, and thus temporarily magnetizable dart without magnetism charge is suitable both for using in a formal dart competition and in an ordinary dart competition of non-magnetic induction scoring. BRIEF DESCRIPTION OF THE DRAWINGS [0020] FIG. 1 is an illustrative view of showing a conventional dart; [0021] FIG. 2 is another illustrative view of showing a conventional dart; [0022] FIG. 3 is a flow chart in accordance with the present invention of showing the steps of the method for magnetizing a dart; [0023] FIG. 4 shows an apparatus for magnetizing a dart in accordance with the present invention; [0024] FIG. 5 is an operational view in accordance with the embodiment of the present invention; Continue reading... Full patent description for Apparatus and method for magnetizing a dart Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Apparatus and method for magnetizing a dart patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Apparatus and method for magnetizing a dart or other areas of interest. ### Previous Patent Application: Bat made of composite material Next Patent Application: Shift control apparatus and method of continuously variable transmission Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Apparatus and method for magnetizing a dart patent info. IP-related news and info Results in 3.16929 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. Storage , Static Storage , Printers |
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