US2010167848A1PendingUtilityA1

Dart barrel

37
Assignee: TSAI CHIA-CHINGPriority: Dec 31, 2008Filed: May 22, 2009Published: Jul 1, 2010
Est. expiryDec 31, 2028(~2.5 yrs left)· nominal 20-yr term from priority
Inventors:Chia-Ching Tsai
F42B 12/72F42B 6/003
37
PatentIndex Score
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Claims

Abstract

A dart barrel comprises a body with a predetermined length, the body is made of low hardness iron rod which is cheaper than copper, and the body has two free ends which are formed with a female threaded portion, respectively, for engaging with a tip and a shaft to form a complete dart. The surface of the barrel is treated with electroplating, blackening or anodizing. With above arrangements and treatment, the dart barrel is environment friendly and low toxic.

Claims

exact text as granted — not AI-modified
1 . A dart barrel comprising a body which is made of low hardness iron rod with a predetermined length, the body having two free ends, and on each of the head and end being formed a threaded portion, respectively. 
     
     
         2 . The dart barrel as claimed in  claim 1 , wherein the threaded portions of the body are female. 
     
     
         3 . The dart barrel as claimed in  claim 1  being of a straight barrel shaped structure with its weight evenly distributed. 
     
     
         4 . The dart barrel as claimed in  claim 1  being of a wine barrel shaped structure whose weight is evenly focused in a center of its body. 
     
     
         5 . The dart barrel as claimed in  claim 1  being of a torpedo-shaped structure whose weight is distributed in a front portion of its body. 
     
     
         6 . The dart barrel as claimed in  claim 1 , wherein a surface of the dart barrel is additionally provided with at least one friction portion. 
     
     
         7 . The dart barrel as claimed in  claim 6 , wherein the friction portion consists of concaves. 
     
     
         8 . The dart barrel as claimed in  claim 6 , wherein the friction portion consists of convexes. 
     
     
         9 . The dart barrel as claimed in  claim 1 , wherein a surface of the body of the dart barrel is provided with a rustproof layer. 
     
     
         10 . The dart barrel as claimed in  claim 9 , wherein the rustproof layers is a plating layer. 
     
     
         11 . The dart barrel as claimed in  claim 9 , wherein the rustproof layers is an anode layer which can also add color to the dart. 
     
     
         12 . A dart barrel comprising a body which is made of low hardness iron rod with a predetermined length, a plastic member with a larger length than the body being coated on a surface of the body, both ends of the plastic member extend out of both free ends of the body of the dart barrel and are processed to form a threaded portion, respectively. 
     
     
         13 . The dart barrel as claimed in  claim 12 , wherein the threaded portions are female. 
     
     
         14 . The dart barrel as claimed in  claim 12 , wherein the threaded portions are male. 
     
     
         15 . The dart barrel as claimed in  claim 12 , wherein at least one friction portion consisting of concaves is formed on a surface of the plastic member.

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