Air gun firing system

• US 6,360,736 B1
• Filed: 02/18/2000
• Issued: 03/26/2002
• Est. Priority Date: 02/18/2000
• Status: Expired due to Fees

• Current Assignee: Yung Che Chang
• Original Assignee: Yung Che Cheng
• Inventors: Juan, Chih-Chen
• Primary Examiner(s): Poon, Peter M.
• Assistant Examiner(s): COPIER, FLORIS C
• Application Number:
  US09/507,222
• Time in Patent Office: 767 Days
• Field of Search: 24/77, 24/32, 24/73, 24/72, 24/54, 24/82, 24/74
• US Class Current: 124/77
• CPC Class Codes: F41B 11/52 the projectiles being loosely held in a magazine above the gun housing, e.g. in a hopper
• CPC Class Codes: F41B 11/57 Electronic or electric systems for feeding or loading F41B11/53 takes precedence
• CPC Class Codes: F41B 11/722 for controlling gas pressure for loading or feeding only
• CPC Class Codes: F41B 11/723 for controlling gas pressure for firing the projectile only

Abstract

An air gun firing system, working in conjunction with an air gun with a barrel and comprising: a bullet chamber on the front end of the main body, connected with the barrel for housing a bullet to be fired through the barrel; a lock, glidingly movable along the axis of the barrel, pushing the bullet into the bullet chamber, as driven by a lock driver, enabling the bullet to be fired, with a spring pulling back the lock; a gas chamber for driving the lock driver, accommodating the lock driver; a high-pressure gas container; a first pressure reducing valve; a second pressure reducing valve; and an electromagnetic valve, controlling flow of low-pressure gas into the gas chamber. When the electromagnetic valve opens, low-pressure gas flows into the gas chamber, driving the lock driver. When the electromagnetic valve closes, the spring pulls back the lock and the lock driver.

Claims

1. An air gun firing system comprising:

a main body,

a barrel with a front end and a rear end,

a bullet chamber on said front end of said main body, said bullet chamber is connected with said rear end of said barrel for housing a bullet to be fired through said barrel,

a lock having a rear end and glidingly movable along a longitudinal axis of said barrel, said lock pushing said bullet into said bullet chamber when said lock is moved forward from a rear position, said lock sealing said bullet chamber when said lock is moved forward, thereby enabling said bullet to be fired,

a lock driver attached to said lock,

a spring attached to said lock and to said main body, said spring returning said lock and said lock driver to an initial position after said bullet has been fired,

a gas chamber housing said lock driver such that said lock driver is movable within said gas chamber parallel to said longitudinal axis of said barrel, and

a gas supply system, said gas supply system supplying gas to drive said lock driver and to fire said bullet.

2. The air gun firing system according to claim 1, wherein:

said air gun firing system further comprises a high pressure gas container,

a first pressure reducing valve to convert gas supplied by said high-pressure gas container to medium-pressure gas,

a medium-pressure chamber that is supplied by said first pressure reducing valve and supplying said bullet chamber with said medium-pressure gas,

a second pressure reducing valve to converting said medium-pressure gas supplied by said first pressure reducing valve to low-pressure gas, and

a control valve between said first pressure reducing valve and said bullet chamber to control flow of said medium-pressure gas into said bullet chamber;

wherein

said control valve comprises a valve body having a front side facing said medium-pressure chamber, said front side of said valve body comprises an opening,

a pushing rod glidingly movable in said valve body in a direction of said longitudinal axis, said pushing rod passing through said opening, said pushing rod having a rear end with a holding ring set on said rear end of said pushing rod,

a plug on said front end of said pushing rod tightly covering said opening when said pushing rod is in a retracted position, and

a spring on said pushing rod positioned between said valve body and said holding ring, said spring urging said pushing rod towards said retracted position; and

wherein

wherein said control valve is opened by said lock driver when said lock is moved forward.

3. An air gun firing system comprising:

a main body

a barrel with a front end and a rear end,

a bullet chamber on said front end of said main body, said bullet chamber is connected with said rear end of said barrel for housing a bullet to be fired through said barrel,

a firing device movable parallel to a longitudinal axis of said barrel, said firing device pushes said bullet into said bullet chamber, thereby enabling said bullet to be fired, and

a spring deployed between said firing device and said main body, said spring returning said firing device to an initial position after said bullet has been fired.

4. The air gun firing system according to claim 3, wherein:

said air gun firing system further comprises a gas chamber to drive said firing system,

a high-pressure gas container,

a first pressure reducing valve to convert gas supplied by said high-pressure gas container to medium-pressure gas,

a medium-pressure chamber that receives said medium-pressure gas from said first pressure reducing valve and supplies said bullet chamber with said medium-pressure gas,

a second pressure reducing valve, converting said medium-pressure gas supplied by said first pressure reducing valve to low-pressure gas,

a control valve between said first pressure reducing valve and said bullet chamber to control a flow of said medium-pressure gas into said bullet chamber, said control valve being opened by said firing system so as to allow said medium-pressure gas to flow into said bullet chamber, and

an electromagnetic valve to control a flow of said low-pressure gas into said gas chamber, with a storage space receiving said medium-pressure gas from said first pressure reducing valve and supplying said second pressure reducing valve and said medium-pressure chamber.

5. The air gun firing system according to claim 4, wherein:

a conduit is inserted between said second pressure reducing valve and said electromagnetic valve, said conduit storing said low-pressure gas about to enter said electromagnetic valve to drive said firing system.

6. An air gun firing system according to claim 4, wherein:

a conduit is inserted between said storage space and said medium-pressure chamber, said conduit storing said medium-pressure gas about to enter said medium-pressure chamber to fire said bullet.