US2008216806A1PendingUtilityA1

Blowgun

Assignee: TSENG SHU-MEIPriority: Mar 9, 2007Filed: Mar 9, 2007Published: Sep 11, 2008
Est. expiryMar 9, 2027(~0.6 yrs left)· nominal 20-yr term from priority
Inventors:Shu-Mei Tseng
F41B 1/00F41B 11/55
44
PatentIndex Score
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Claims

Abstract

A blowgun, which is used for firing bullets, comprising: a grip which is comprised a loading gate, a lead pipe, and a guiding flange; a trigger which is installed slidably at the grip, and a interference bar is installed at a part of the trigger, which is formed in the inner of the grip; a mouthpiece which is comprised a tubular part at one end thereof and a conical part at another end thereof; a barrel; a pushing bar which is installed slidably in the lead pipe and can be slid between the mouthpiece and the barrel; and a first recoil spring which is installed in the lead pipe; wherein the lead pipe is formed at the rear of the barrel and through inner of the grip; the loading gate is connected to the lead pipe; the guiding flange is installed in the grip; the tubular part is coupled together with the lead pipe; and during an interval the trigger being compressed, the interference bar of the trigger brings the pushing bar to approach the mouthpiece and to compress the first recoil spring until a chamber which is connected to the loading gate between the pushing bar and the barrel is enough for containing the bullet, and then the first recoil spring returns and brings the pushing bar to approach the barrel and to push the bullet into the barrel while the interference bar contacts with the guiding flange and releases the pushing bar.

Claims

exact text as granted — not AI-modified
1 . A blowgun, which is used for firing bullets, comprising:
 a grip which is comprised a loading gate, a lead pipe, and a guiding flange;   a trigger which is installed slidably at the grip, and a interference bar is installed at a part of the trigger, which is formed in the inner of the grip;   a mouthpiece which is comprised a tubular part at one end thereof and a conical part at another end thereof;   a barrel;   a pushing bar which is installed slidably in the lead pipe and can be slid between the mouthpiece and the barrel; and   a first recoil spring which is installed in the lead pipe;   wherein the lead pipe is formed at the rear of the barrel and through inner of the grip; the loading gate is connected to the lead pipe; the guiding flange is installed in the grip; the tubular part is coupled together with the lead pipe; and during an interval the trigger being compressed, the interference bar of the trigger brings the pushing bar to approach the mouthpiece and to compress the first recoil spring until a chamber which is connected to the loading gate between the pushing bar and the barrel is enough for containing the bullet, and then the first recoil spring returns and brings the pushing bar to approach the barrel and to push the bullet into the barrel while the interference bar contacts with the guiding flange and releases the pushing bar.   
   
   
       2 . The blowgun recited in  claim 1 , wherein the pushing bar comprises a second contact part by which the pushing bar contacts with the interference bar. 
   
   
       3 . The blowgun recited in  claim 2 , wherein the interference bar comprises a first contact part that an upper part thereof can be contacted with the second contact part and a lower part thereof can't be contacted with the interference bar; and during the interval the trigger being compressed and when the chamber is enough for containing the bullet, the lower part of the interference bar contacts with the guiding flange. 
   
   
       4 . The blowgun recited in  claim 1 , wherein the blowgun further comprises a second recoil spring which is installed in the grip for opposing being compressed of the trigger. 
   
   
       5 . The blowgun recited in  claim 1 , wherein the blowgun further comprises a first holding part which is installed in the barrel for blocking the bullet at the rear of the first holding part in the barrel. 
   
   
       6 . The blowgun recited in  claim 5 , wherein the blowgun further comprises a second holding part which is installed at the rear of the first holding part in the barrel for restricting the bullet in the barrel between the first holding part and the second holding part. 
   
   
       7 . The blowgun recited in  claim 6 , wherein the front end and the rear end of the bullet in the barrel respectively are contacted with the first holding part and the second holding part tightly. 
   
   
       8 . The blowgun recited in  claim 6 , wherein the first holding part and the second holding part both are O-rings. 
   
   
       9 . The blowgun recited in  claim 5 , wherein the first holding part is an O-ring. 
   
   
       10 . The blowgun recited in  claim 1 , wherein the blowgun further comprises a sleeve which is installed at a front part of the mouthpiece and made of aluminum. 
   
   
       11 . The blowgun recited in  claim 1 , wherein the blowgun further comprises a bracket, which is installed on the barrel, and at least a magazine, which is installed on the bracket and contains a plurality of bullets. 
   
   
       12 . The blowgun recited in  claim 11 , wherein the blowgun further comprises a receiver which is installed on the loading gate and connected with the loading gate for holding the magazine.

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