US20030085370A1 - Lacquer bullet gun gas entry valve - Google Patents
Lacquer bullet gun gas entry valve Download PDFInfo
- Publication number
- US20030085370A1 US20030085370A1 US09/993,828 US99382801A US2003085370A1 US 20030085370 A1 US20030085370 A1 US 20030085370A1 US 99382801 A US99382801 A US 99382801A US 2003085370 A1 US2003085370 A1 US 2003085370A1
- Authority
- US
- United States
- Prior art keywords
- rod
- shutter
- valve body
- lacquer
- bullet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004922 lacquer Substances 0.000 title claims abstract description 37
- 238000010304 firing Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/70—Details not provided for in F41B11/50 or F41B11/60
- F41B11/72—Valves; Arrangement of valves
- F41B11/721—Valves; Arrangement of valves for controlling gas pressure for both firing the projectile and for loading or feeding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/5109—Convertible
- Y10T137/5196—Unit orientable in a single location between plural positions
Definitions
- the present invention relates to a lacquer bullet gun gas entry valve, particularly to a lacquer bullet gun gas entry valve providing controlled entry of compressed gas.
- a conventional lacquer bullet gun mainly comprises: a gun case 1 ; a barrel 2 at a front end of the gun case 1 ; a bullet chamber 3 at a rear end of the barrel 2 ; a feeding hole 4 above the bullet chamber 3 , feeding one lacquer bullet 5 at a time into the bullet chamber 3 , which are subsequently driven out through the barrel 2 by compressed gas; a firing device 6 inside the gun case 1 , performing rearward and forward movements, while moving forward pushing the lacquer bullet 5 into the bullet chamber 3 to be fired; a gas container 8 , supplying compressed gas through a pressure-reducing valve 9 into an expansion chamber 10 , which is located below the bullet chamber 3 and connected thereto by a conduit 11 ; and a gas entry valve 12 .
- the gas entry valve 12 further comprises: a valve body 13 , a shutter 15 , a spring 16 and a piston 17 .
- the valve body 13 is placed in the expansion chamber 10 at an entrance of the conduit 11 and has a central axis, defining a longitudinal direction, along which a passageway 14 runs.
- An opening 141 is placed on an upper side of the passageway 14 , being aligned with the conduit 11 , so that the passageway 14 and the conduit 11 are connected.
- the shutter 15 is located on the central axis of the valve body 13 , having a sealing element for sealing the shutter 15 against the valve body 13 , preventing gas from entering the passageway 14 within the valve body 13 .
- a rod 151 is attached to the shutter 15 and passes through the passageway 14 along the longitudinal direction, having a rear end that reaches out of a rear side of the valve body 13 opposite to the shutter 15 .
- the spring 16 pushes the shutter 15 tight on the valve body 13 .
- the piston 17 is connected to a lower part of the firing device 6 , glidingly moving within the expansion chamber 10 .
- the rear end of the rod 151 carries a blocking part 153 .
- the blocking part 153 has several longitudinal grooves 154 and has a diameter that is equal to the diameter of the passageway 14 . Thus gas from the passageway 14 is blocked from passing, except for the grooves 154 .
- the number and widths of the grooves 154 determine the flow of gas into the rear section of the expansion chamber 10 and gas pressure there, controlling gas pressure on the piston 17 .
- the number and width of the grooves 154 needs to be adapted to the compressed gas pressure at which the lacquer bullet gun operates for the lacquer bullet gun to work regularly.
- various gases are used as driving agents which have various operating pressures.
- carbon dioxide and nitrogen are used, with carbon dioxide having a larger operating pressure than nitrogen. Therefore, using nitrogen as a driving agent requires a larger number of grooves 154 at the rear end of the rod 151 at the shutter 15 to form a wider path for gas to flow into the rear section of the expansion chamber 10 to develop sufficient pressure on the piston 17 .
- carbon dioxide is used as a driving agent, the number or widths of the grooves 154 has to be reduced, so as to reduce pressure on the piston 17 and preventing the piston 17 from moving back too fast.
- Another object of the present invention is to provide a lacquer bullet gun gas entry valve, allowing to use two agents for the lacquer bullet gun at the same time for better convenience.
- FIG. 1 is a sectional side view of the lacquer bullet gun gas entry valve of the present invention in conjunction with a lacquer bullet gun.
- FIG. 2 is an exploded sectional side view of the lacquer bullet gun gas entry valve of the present invention.
- FIG. 3 is a schematic illustration of the lacquer bullet gun gas entry valve of the present invention with the shutter opened.
- FIG. 3A is an cross-sectional view of the blocking part on the far end of the first rod of the present invention.
- FIG. 4 is a schematic illustration of the present invention after reversing the first and second rods, with the second rod entering the valve body.
- FIG. 4A is an cross-sectional view of the blocking part on the far end of the second rod of the present invention.
- FIG. 5 is a sectional side view of a conventional lacquer bullet gun gas entry valve in conjunction with a lacquer bullet gun.
- the lacquer bullet gun gas entry valve of the present invention is a gas entry valve 20 , used in conjunction with a lacquer bullet gun which comprises: a gun case 30 ; a barrel 34 at a front end of the gun case 30 through which lacquer bullets are fired, defining a forward direction; a bullet chamber 32 at a rear end of the barrel 34 ; an expansion chamber 31 , located below the bullet chamber 32 , having front and rear sections; a firing device 40 , performing forward movements for pushing lacquer bullets one at a time into the bullet chamber 32 to be fired; a piston 50 in the rear section of the expansion chamber 31 , connected with the firing device 40 ; and a gas container 60 , supplying compressed gas into the expansion chamber 31 , which is subsequently let through the gas entry valve 20 into the bullet chamber 32 to drive a lacquer bullet through the barrel 34 .
- the gas entry valve 20 comprises: a valve body 21 , a shutter 22 and a spring 23 .
- the valve body 21 is placed in a middle section of the expansion chamber 31 inside the gun case 30 , separating the front and rear sections thereof, and has a central axis, which defines a longitudinal direction and along which a passageway 211 runs.
- An opening 212 is placed on an upper side of the passageway 211 , being aligned with a conduit 33 to the bullet chamber 32 .
- gas in the expansion chamber 31 is led through the passageway 211 in the valve body 21 and the opening 212 into the bullet chamber 32 .
- the shutter 22 is placed at a front end of the valve body 21 on the central axis thereof and is longitudinally movable, having a first surface and a second surface opposite thereto, with a sealing element 24 being attached to each of the first and second surfaces. Thereby the shutter 22 is sealed against the front side of valve body 22 , preventing gas in the front section of the expansion chamber 31 from entering the passageway 211 within the valve body 21 and reaching the bullet chamber 32 .
- a plug 35 is set on the front end of the expansion chamber 31 in the gun case 30 .
- the spring 23 is inserted between the shutter 22 and the plug 35 , pushing the shutter 22 tight on the valve body 21 .
- the plug 35 is screwed onto the front end of the expansion chamber 31 . After removing the plug 35 , it is possible to take the spring 23 and the shutter 22 out of the expansion chamber 31 .
- a first rod 221 is attached to the first surface of the shutter 22 , passing through the passageway 211 along the longitudinal direction inside the valve body 21 and has a far end that reaches out of a rear side of the valve body 21 opposite to the shutter 22 .
- a blocking part 222 is set on the far end of the first rod 221 .
- the blocking part 222 has a peripheral surface with several longitudinal grooves 223 . As shown in FIG.
- the main characteristic of the present invention is a second rod 224 which is attached to the second surface of the shutter 22 , opposite to the first surface thereof.
- the first rod 221 and the second rod 224 are aligned along a common axis.
- a second blocking part 225 is set on a far end of the second rod 224 .
- the second blocking part 225 has a peripheral surface with several longitudinal grooves 226 .
- the shutter 22 is placed within the expansion chamber 31 in one of two ways, with either the first rod 221 or the second rod 224 inserted in the passageway 221 inside the valve body 21 and being pushed by the piston 50 for opening the shutter 22 .
- the second rod 224 is of similar length and size as the first rod 221 .
- the number and widths of the grooves 226 on the first blocking part 222 differs from the number and widths of the grooves 223 on the second blocking part 225 .
- gas flow through the grooves 226 of the second rod 224 is different from gas flow through the grooves 223 of the first rod 221 .
- the first rod 221 has two grooves 223 , while the second rod 224 has six grooves 226 . Therefore, by inserting the second rod 224 in the valve body 21 , a relatively large gas flow passes through to push the piston 50 . On the other hand, when the first rod 221 is inserted in the valve body 21 , a reduced large gas flow passes through to push the piston 50 .
- carbon dioxide as a driving agent having a relatively large operating pressure
- the first rod 221 is inserted in the valve body 21 , so that reduced pressure is applied on the piston 50 .
- the second rod 224 is inserted in the valve body 21 , so that sufficiently large pressure is applied on the piston 50 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
Abstract
A lacquer bullet gun gas entry valve, placed inside the lacquer bullet gun at an entrance of a conduit between an expansion chamber and a bullet chamber. The lacquer bullet gun gas entry valve comprises a valve body and a shutter. The valve body has a passageway, allowing compressed gas to pass to the bullet chamber. The shutter tightly closes a front end of the valve body. The shutter has a first surface to which a first rod is attached and a second surface opposite to the first surface to which a second rod is attached, which is aligned with the first rod on a common axis. Depending on how the shutter is oriented, the first or second rod pass through the passageway, having a far end which extends beyond a rear end of the valve body, so that pushing of the far end by the firing device causes the shutter to be opened. Several longitudinal grooves are cut into the far end both of the first and the second rod, providing a path for compressed gas to push back the firing device. The longitudinal grooves of the first rod and the longitudinal grooves of the second rod have different total cross-sections, permitting different quantities of gas to flow through, allowing to adapt to various gas driving agents with various operating pressures.
Description
- 1. Field of the Invention
- The present invention relates to a lacquer bullet gun gas entry valve, particularly to a lacquer bullet gun gas entry valve providing controlled entry of compressed gas.
- 2. Description of Related Art
- As shown in FIG. 5, a conventional lacquer bullet gun mainly comprises: a gun case1; a
barrel 2 at a front end of the gun case 1; a bullet chamber 3 at a rear end of thebarrel 2; afeeding hole 4 above the bullet chamber 3, feeding one lacquer bullet 5 at a time into the bullet chamber 3, which are subsequently driven out through thebarrel 2 by compressed gas; a firing device 6 inside the gun case 1, performing rearward and forward movements, while moving forward pushing the lacquer bullet 5 into the bullet chamber 3 to be fired; agas container 8, supplying compressed gas through a pressure-reducingvalve 9 into anexpansion chamber 10, which is located below the bullet chamber 3 and connected thereto by aconduit 11; and agas entry valve 12. Thegas entry valve 12 further comprises: avalve body 13, ashutter 15, aspring 16 and apiston 17. Thevalve body 13 is placed in theexpansion chamber 10 at an entrance of theconduit 11 and has a central axis, defining a longitudinal direction, along which apassageway 14 runs. Anopening 141 is placed on an upper side of thepassageway 14, being aligned with theconduit 11, so that thepassageway 14 and theconduit 11 are connected. Theshutter 15 is located on the central axis of thevalve body 13, having a sealing element for sealing theshutter 15 against thevalve body 13, preventing gas from entering thepassageway 14 within thevalve body 13. Arod 151 is attached to theshutter 15 and passes through thepassageway 14 along the longitudinal direction, having a rear end that reaches out of a rear side of thevalve body 13 opposite to theshutter 15. Thespring 16 pushes theshutter 15 tight on thevalve body 13. Thepiston 17 is connected to a lower part of the firing device 6, glidingly moving within theexpansion chamber 10. - When the firing device6 moves forward, the
piston 17 moves along and pushes therod 151 forward, causing theshutter 15 to separate from thevalve body 13 and allowing compressed gas to enter the bullet chamber 3 through thepassageway 14 in thevalve body 13 to drive out the lacquer bullet 5 through thebarrel 2. When theshutter 15 opens, pushed by thepiston 17, gas partly enters a rear section of theexpansion chamber 10 through a gap between therod 151 and a rear end of thepassageway 14, pushing thepiston 17 rearward, so that the firing device 6 returns to a ready state, as before firing. - For controlling gas flow into the rear section of the
expansion chamber 10 and pressure exerted there to prevent too large a pressure from pushing thepiston 17 rearward too fast and, on the other hand, to create sufficient pressure to push thepiston 17 rearward, the rear end of therod 151 carries a blockingpart 153. The blockingpart 153 has severallongitudinal grooves 154 and has a diameter that is equal to the diameter of thepassageway 14. Thus gas from thepassageway 14 is blocked from passing, except for thegrooves 154. The number and widths of thegrooves 154 determine the flow of gas into the rear section of theexpansion chamber 10 and gas pressure there, controlling gas pressure on thepiston 17. - The number and width of the
grooves 154 needs to be adapted to the compressed gas pressure at which the lacquer bullet gun operates for the lacquer bullet gun to work regularly. However, various gases are used as driving agents which have various operating pressures. Nowadays, mainly carbon dioxide and nitrogen are used, with carbon dioxide having a larger operating pressure than nitrogen. Therefore, using nitrogen as a driving agent requires a larger number ofgrooves 154 at the rear end of therod 151 at theshutter 15 to form a wider path for gas to flow into the rear section of theexpansion chamber 10 to develop sufficient pressure on thepiston 17. If, on the other hand, carbon dioxide is used as a driving agent, the number or widths of thegrooves 154 has to be reduced, so as to reduce pressure on thepiston 17 and preventing thepiston 17 from moving back too fast. - Adapting the gas entry valve to various driving agents with various operating pressures requires different designs thereof. Especially, when carbon dioxide as a driving agent is replaced by nitrogen, pressure to push back the
piston 17 is insufficient. When nitrogen as a driving agent is replaced by carbon dioxide, pressure to push back thepiston 17 is too large, possibly resulting in breakdowns. Conventional lacquer bullet guns are thus restricted to one type of driving agents, which is rather inconvenient. - Since gas entry valves for two different driving agents cannot be exchanged, two types of gas entry valves for lacquer bullet guns have to be employed, increasing working effort and cost of production.
- It is the main object of the present invention to provide a lacquer bullet gun gas entry valve, allowing to use various driving agents for the lacquer bullet gun without modification.
- Another object of the present invention is to provide a lacquer bullet gun gas entry valve, allowing to use two agents for the lacquer bullet gun at the same time for better convenience.
- The present invention can be more fully understood by reference to the following description and accompanying drawings.
- FIG. 1 is a sectional side view of the lacquer bullet gun gas entry valve of the present invention in conjunction with a lacquer bullet gun.
- FIG. 2 is an exploded sectional side view of the lacquer bullet gun gas entry valve of the present invention.
- FIG. 3 is a schematic illustration of the lacquer bullet gun gas entry valve of the present invention with the shutter opened.
- FIG. 3A is an cross-sectional view of the blocking part on the far end of the first rod of the present invention.
- FIG. 4 is a schematic illustration of the present invention after reversing the first and second rods, with the second rod entering the valve body.
- FIG. 4A is an cross-sectional view of the blocking part on the far end of the second rod of the present invention.
- FIG. 5 is a sectional side view of a conventional lacquer bullet gun gas entry valve in conjunction with a lacquer bullet gun.
- As shown in FIG. 1, the lacquer bullet gun gas entry valve of the present invention is a
gas entry valve 20, used in conjunction with a lacquer bullet gun which comprises: agun case 30; abarrel 34 at a front end of thegun case 30 through which lacquer bullets are fired, defining a forward direction; abullet chamber 32 at a rear end of thebarrel 34; anexpansion chamber 31, located below thebullet chamber 32, having front and rear sections; afiring device 40, performing forward movements for pushing lacquer bullets one at a time into thebullet chamber 32 to be fired; apiston 50 in the rear section of theexpansion chamber 31, connected with thefiring device 40; and agas container 60, supplying compressed gas into theexpansion chamber 31, which is subsequently let through thegas entry valve 20 into thebullet chamber 32 to drive a lacquer bullet through thebarrel 34. - The
gas entry valve 20 comprises: avalve body 21, ashutter 22 and aspring 23. Thevalve body 21 is placed in a middle section of theexpansion chamber 31 inside thegun case 30, separating the front and rear sections thereof, and has a central axis, which defines a longitudinal direction and along which apassageway 211 runs. Anopening 212 is placed on an upper side of thepassageway 211, being aligned with aconduit 33 to thebullet chamber 32. Thus gas in theexpansion chamber 31 is led through thepassageway 211 in thevalve body 21 and the opening 212 into thebullet chamber 32. Theshutter 22 is placed at a front end of thevalve body 21 on the central axis thereof and is longitudinally movable, having a first surface and a second surface opposite thereto, with a sealingelement 24 being attached to each of the first and second surfaces. Thereby theshutter 22 is sealed against the front side ofvalve body 22, preventing gas in the front section of theexpansion chamber 31 from entering thepassageway 211 within thevalve body 21 and reaching thebullet chamber 32. - A
plug 35 is set on the front end of theexpansion chamber 31 in thegun case 30. Thespring 23 is inserted between theshutter 22 and theplug 35, pushing theshutter 22 tight on thevalve body 21. As shown in FIG. 2, theplug 35 is screwed onto the front end of theexpansion chamber 31. After removing theplug 35, it is possible to take thespring 23 and theshutter 22 out of theexpansion chamber 31. - Referring to FIGS. 1 and 3, a
first rod 221 is attached to the first surface of theshutter 22, passing through thepassageway 211 along the longitudinal direction inside thevalve body 21 and has a far end that reaches out of a rear side of thevalve body 21 opposite to theshutter 22. A blockingpart 222 is set on the far end of thefirst rod 221. The blockingpart 222 has a peripheral surface with severallongitudinal grooves 223. As shown in FIG. 3, when thepiston 50 moves forward along with thefiring device 40, thefirst rod 221 is pushed forward, causing theshutter 22 to separate from thevalve body 21, so that gas in the front section of theexpansion chamber 31 enters thepassageway 211 inside thevalve body 21 and reaches thebullet chamber 32 to drive a lacquer bullet through thebarrel 34. - Referring again to FIG. 3, when the
shutter 22 is shifted forward, opening thepassageway 211, thepassageway 211 at the rear end thereof is blocked by the blockingpart 222, leaving only thegrooves 223 as a path for compressed gas to enter the rear section of theexpansion chamber 31. Thereby thepiston 50 is pushed rearward again, taking along the firing device to a rearmost position within thegun case 30. - The main characteristic of the present invention is a
second rod 224 which is attached to the second surface of theshutter 22, opposite to the first surface thereof. Thefirst rod 221 and thesecond rod 224 are aligned along a common axis. A second blockingpart 225 is set on a far end of thesecond rod 224. Thesecond blocking part 225 has a peripheral surface with severallongitudinal grooves 226. - Referring to FIG. 4, the
shutter 22 is placed within theexpansion chamber 31 in one of two ways, with either thefirst rod 221 or thesecond rod 224 inserted in thepassageway 221 inside thevalve body 21 and being pushed by thepiston 50 for opening theshutter 22. Thesecond rod 224 is of similar length and size as thefirst rod 221. The number and widths of thegrooves 226 on thefirst blocking part 222, however, differs from the number and widths of thegrooves 223 on thesecond blocking part 225. Thus gas flow through thegrooves 226 of thesecond rod 224 is different from gas flow through thegrooves 223 of thefirst rod 221. - As shown in FIGS. 3A and 4A, the
first rod 221 has twogrooves 223, while thesecond rod 224 has sixgrooves 226. Therefore, by inserting thesecond rod 224 in thevalve body 21, a relatively large gas flow passes through to push thepiston 50. On the other hand, when thefirst rod 221 is inserted in thevalve body 21, a reduced large gas flow passes through to push thepiston 50. Thus, to adapt to carbon dioxide as a driving agent having a relatively large operating pressure, thefirst rod 221 is inserted in thevalve body 21, so that reduced pressure is applied on thepiston 50. On the other hand, to adapt to nitrogen as a driving agent having a relatively small operating pressure, thesecond rod 224 is inserted in thevalve body 21, so that sufficiently large pressure is applied on thepiston 50. - The arrangement described above allows to use two different driving agents on a lacquer bullet gun, e.g., carbon dioxide and nitrogen. If several rods are prepared to be substituted, a multitude of driving agents may be employed, increasing flexibility and convenience.
- While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention which is defined by the appended claims.
Claims (3)
1. A lacquer bullet gun gas entry valve, used in conjunction with a lacquer bullet gun having a firing device and placed inside said lacquer bullet gun at an entrance of a conduit between an expansion chamber and a bullet chamber, said lacquer bullet gun gas entry valve comprising:
a valve body, located in said expansion chamber, having a longitudinal axis defining a longitudinal direction, with a passageway running along said longitudinal axis, which has a lateral opening, allowing compressed gas, having entered said passageway, to escape to said bullet chamber; and
a shutter, tightly closing a front end of said valve body, having a first surface to which a first rod is attached, said first rod longitudinally passing through said passageway and having a far end which extends beyond a rear end of said valve body, so that pushing of said far end by said firing device causes said shutter to be opened, with several longitudinal grooves cut into said far end of said first rod, providing a path for compressed gas to push back said firing device, said shutter furthermore having a second surface opposite to said first surface to which a second rod is attached which is aligned with said first rod on said longitudinal axis, wherein, after reversing said first and second rods, said second rod is inserted in said valve body to be pushed by said firing device for opening said shutter, with several longitudinal grooves cut into a far end of said second rod, said longitudinal grooves of said first rod and said longitudinal grooves of said second rod having different total cross-sections, permitting different quantities of gas to flow through.
2. A lacquer bullet gun gas entry valve according to claim 1 , wherein said first and second surfaces of the shutter each carry a sealing element for sealing both said first surface and said second surface against said valve body.
3. A lacquer bullet gun gas entry valve according to claim 1 , wherein a removable plug is put on a front end of said expansion chamber and a spring is inserted between said plug and said shutter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/993,828 US6546950B1 (en) | 2001-11-05 | 2001-11-05 | Lacquer bullet gun Gas entry valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/993,828 US6546950B1 (en) | 2001-11-05 | 2001-11-05 | Lacquer bullet gun Gas entry valve |
Publications (2)
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US6546950B1 US6546950B1 (en) | 2003-04-15 |
US20030085370A1 true US20030085370A1 (en) | 2003-05-08 |
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US09/993,828 Expired - Fee Related US6546950B1 (en) | 2001-11-05 | 2001-11-05 | Lacquer bullet gun Gas entry valve |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20130291848A1 (en) * | 2012-05-02 | 2013-11-07 | Planet Eclipse Limited | Paintball marker with advanced gas release mechanism |
Families Citing this family (12)
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US7318428B2 (en) | 2002-04-05 | 2008-01-15 | Avalon Advanced Products, Inc. | Paint ball gun having paint ball dispenser with threaded connector |
US6923170B2 (en) * | 2002-07-01 | 2005-08-02 | Avalon Manufacturing Company | Paint ball gun having a combined hopper/feeder |
US6732726B2 (en) * | 2002-08-28 | 2004-05-11 | Avalon Manufacturing Company | Paint ball gun having a front mounted gas cylinder |
US6742512B1 (en) | 2003-06-23 | 2004-06-01 | Avalon Manufactoring Co. | Paintball guns having hopper, adapter and/or feed tube aiming/pointing device mounting assemblies |
EP1538045B1 (en) * | 2003-12-05 | 2009-03-25 | Nissin Kogyo Co., Ltd. | Hydraulic controller |
US20060236991A1 (en) * | 2005-02-22 | 2006-10-26 | Yiauguo Gan | Gas gun for coupling different gas containers |
US7686004B2 (en) * | 2006-08-15 | 2010-03-30 | Yiauguo Gan | Pneumatic paintball gun |
US20080047535A1 (en) * | 2006-08-24 | 2008-02-28 | Brandon Handel | Paintball quick change hopper |
US7975681B2 (en) * | 2007-10-03 | 2011-07-12 | Brandon Handel | Spherical projectile reloading system |
US7862006B2 (en) * | 2007-11-21 | 2011-01-04 | Keymore International Co. Ltd. | Air intake valve apparatus for pneumatic gun |
KR101956108B1 (en) * | 2017-10-31 | 2019-03-12 | 이시영 | A semi-auto air gun |
US11371797B2 (en) * | 2019-10-25 | 2022-06-28 | Polaris Armament Industry Corp. | Dual-purpose type gas-valve structure |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US2594185A (en) * | 1948-07-19 | 1952-04-22 | Daisy Mfg Co | Loading mechanism for pneumatic guns |
US5494024A (en) * | 1992-11-06 | 1996-02-27 | Scott; Eric | Paint ball gun and assemblies therefor |
US5613483A (en) * | 1995-11-09 | 1997-03-25 | Lukas; Michael A. | Gas powered gun |
US5791328A (en) * | 1997-02-24 | 1998-08-11 | Alexander; Aaron K. | Air valve for marking pellet gun |
US6360736B1 (en) * | 2000-02-18 | 2002-03-26 | Yung Che Cheng | Air gun firing system |
US6418920B1 (en) * | 2000-07-28 | 2002-07-16 | Michael D. Marr | Valves for actuating the flow of pressurized fluids and device containing same |
-
2001
- 2001-11-05 US US09/993,828 patent/US6546950B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130291848A1 (en) * | 2012-05-02 | 2013-11-07 | Planet Eclipse Limited | Paintball marker with advanced gas release mechanism |
US8960175B2 (en) * | 2012-05-02 | 2015-02-24 | Planet Eclipse Limited | Paintball marker with advanced gas release mechanism |
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US6546950B1 (en) | 2003-04-15 |
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