CA1264128A - Air gun - Google Patents
Air gunInfo
- Publication number
- CA1264128A CA1264128A CA000578891A CA578891A CA1264128A CA 1264128 A CA1264128 A CA 1264128A CA 000578891 A CA000578891 A CA 000578891A CA 578891 A CA578891 A CA 578891A CA 1264128 A CA1264128 A CA 1264128A
- Authority
- CA
- Canada
- Prior art keywords
- barrel
- valve
- gas
- bolt
- hammer
- 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.)
- Expired
Links
Classifications
-
- 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
- F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
- F41B11/62—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
ABSTRACT
A gun for firing pellets such as paint pellets has a lower barrel through which the pellets are fired and a hammer mechanism mounted in a rear end portion of this barrel. This mechanism includes a hammer spring and a hammer. An upper barrel is mounted on the lower one and it contains means for holding and punching a hole in a gas cylinder mounted in this upper barrel. A gas valve system is arranged in the lower barrel in front of the hammer. This system has a valve body fixedly located in the lower barrel, which body has a gas chamber and a forward gas passageway that is connected to the chamber when the gun is fired. A hole extends between the two barrels and is located along a portion of the upper barrel that holds the gas cyclinder. There are means for releasing compressed gas from the gas chamber and through the forward gas passageway to fire a pellet when the hammer is released.
A gun for firing pellets such as paint pellets has a lower barrel through which the pellets are fired and a hammer mechanism mounted in a rear end portion of this barrel. This mechanism includes a hammer spring and a hammer. An upper barrel is mounted on the lower one and it contains means for holding and punching a hole in a gas cylinder mounted in this upper barrel. A gas valve system is arranged in the lower barrel in front of the hammer. This system has a valve body fixedly located in the lower barrel, which body has a gas chamber and a forward gas passageway that is connected to the chamber when the gun is fired. A hole extends between the two barrels and is located along a portion of the upper barrel that holds the gas cyclinder. There are means for releasing compressed gas from the gas chamber and through the forward gas passageway to fire a pellet when the hammer is released.
Description
~2~ 8 This lnvention relates to air guns suitable for firing pellets.
Various types oE air guns are known at -the present time. One common type uses small cylinders con-taining compressed C02. These metal cyclinders have an end -that can be punctured in order to release the C02 gas. Although guns of this -type have and can be used to fire lead pellets for game shooting or target shooting more recen-tly guns of -this -type have been developed to fire paint pellets. These guns can be used in mock "war games" wherein the users of the guns attempt to hit other game participants with a paint pellet. Goggles and other protective wear can be worn during such games to prevent injury.
The present invention provides an air gun for Eiring a pellet such as a paint pellet, which gun is reliable and easy to use. The air gun described herein has a secure mechanism for holding the gas cylinder and a reliable mechanism for delivering the compressed gas from the cylinder to the gas valve system of the gun.
According to the present invention an air gun for firing pellets using compressed gas from a gas cylinder mounted in the gun has a first barrel through which the pellets are fired and containing a ~2~12~
gas valve sys-tem. A second barrel is mounted on top of -the first barrel and provides a gas cylinder holder in the form of a sealable compartment into which -the cylinder is placed. A devlce for punching a hole in the gas cylinder is also provided~ There is a hole in the side of the barrel which opens into the aforementioned compartmen-t and through this hole compressed gas can pass from the compartment in-to the gas valve system.
A
Further features and advan-tages will become apparent from the Eollowing de-tailed description taken in conjunction with the accompanying drawings.
In the drawings, Figure l is a left side view of an air gun constructed .in accordance w.ith the invention;
Figure 2 is a blown apart view showing the various components that make up the present air gun including an optional rifle stock;
Figure 3 is a right side view of the ai. gun of Figure 1, which view shows the upper and lower barrels in axial cross section for purposes of illustration;
Figure 4 is an axial cross section of the valve body that is mounted in the lower barrel and the components arranged therein;
Figure 5 is an axial cross section of the punctu.re pin housing and the components mounted therein; and Figure ~ is a left side view of the upper and lower barrels only showing the arrangement of the holes and slots in the side thereof.
A completely assembled air or yas yun 10 constructed in accordance with the invention is shown in Figure 1. The illustrated gun employs a C02 cylinder 12 indicated in dash lines in Figure 3 and is adapted to fire paint pellets 14 of known construction. The pellets can be inserted into the front end of the gun by removing a magazine cap 16 which threads into the end of an upper barrel or tube 18. These pellets are able to drop individually into a lower barrel 20 through an opening 22 in the upper barrel. The gun is held by means of a gun handle 24, the parts of which can be seen in Figure 2. An optional rifle stock 26 can be attached by a suitable bolt if desired.
The gun 10 is fired by means of the trigger mechanisrn 28 which itself is of known construction and therefore this mechanism will not be described in detail except insofar as is required for purposes of the invention. This trigger mechanism is available from the Crossman Company located in Bloomingfield, New York, U.S.A. The trigger mechanism includes the trigger 30, a trigger enclosure 32 and a rigger operated lever 34. In this mechanism the rear end of the lever 34 is lowered by prassing the trigger 30 and then the lever rear end is pushed up after release of the trigger by the spring 36. The lever %~
34 has an upstanding projection on its rear end wllich engages in an annular groove 40 that extends about a hammer 42 located in the lower barrel. It will thus be understood how the hammer is released and the yun is fired by pulling on the trigger 30.
The aforementioned gun handle 24 includes two hand grip components 44, a cover 46 and a grip frame 48. The hand grips 44 are held in place by suitable screws 50. A safety pin is provided at 52 just to the rear of the trigger.
The gun 10 is loaded by pulling back on a slidable pump member 54, the construction of which can be seen clearly from Figure 2. The member 54 slides along the exterior oE the lower barrel 20 from which the pellets are fired. The front section of the pump member is preferably knurled as shown in Figure 1 to permit it to be easily gripped while the rear portion of this member is open at 56~ The pump member 54 has an elongate slot 58 formed on its left side as illustrated in Figure 1. A long pump screw 60 extends through the slot 58 and it ;s threaded into an opening in the rear section of the aforementioned hammer 42. The final rearward movement of the pump member 54 will thus pull the hammer 42 rearward against the pressure oE a hammer z~
spring 62 whicll is retained in the lower barrel by a spring housing 64. The spring llousing 64 is secured in the lower barrel by means o~ a set screw 66. This set screw 66 also fastens the grip fra,ne 48 to the lower barrel as illustrated in Fiyure 3.
rhe pump member 54 has a circular hole 70 located forwardly of the slot 58. Through this hole extends a pump screw 72 which also exte,nds through an elongate s]ot 74 formed in the side of the lower barrel 20. The end of the screw 72 is threaded into a bolt 76. In this way rearward movement of the pump member will draw the bolt 76 rearwardly so that a paint pellet 14 can drop through the opening 22 in the upper barrel and through an opening 78 is the lower barrel. ~hen the pump member moves forwardly to its forwardmost position, the paint pellet in front of the bolt is ready to be fired. The bolt 76 is generally cylindrical except for a flat side 80 positioned at the bottom. Mounted near the front end of the bolt is a suitable O-ring 82 which seals a small gap between the bolt and the inside of the barrel when the bolt ;s in its forward position as shown in Fiyure 3. The bolt has a central axial hole or passageway 84 in order to receive a hollow pin 86 described in more detail hereinafter.
Arranged about the pin 86 is a bolt spring 88 which acts to push both the bolt and the attached pump member towards their forward position when the pump mernber is releasedO Preferably the bolt spring is conical so that it re~uires a minimum space when compressed.
The narrow end of the spring is arranged against the rear surface of the bolt~
The preferred illustrated gun has means for holding and punching a hole in the gas cylinder 12 and this includes a puncture pin housing 90 illustrated in detail in Figure 5. The cylinder 12 is inserted into a sealable compartment 92 in the upper barrel, which compartment is closed by C02 cap 94. The cap 94 is formed with a knurled outer end 96 and threads 98 which engage threads formed on the inside of the end of the upper barrel 18. The cap 94 is fitted with an O-ring seal 100 which effectively seals the rear end of the compartment 92. The front end of the compartment 92 is sealed by another O-ring 102 that extends around the housing 90.
Referring to Figure 5 of the drawings, the housing 90 is formed with an annular groove 104 located a short distance forwardly of the seal 102.
The housing 90 is fixed in the upper barrel 18 by means of two set screws 106. These extend through two threaded holes 108 formed in opposite sides of the upper barrel. It will be understood that the ends of the set screws extend into the groove 104, thus ~2 E;~8 preventiny axial rnovement of the housing. The rear section of the housing 90 has a slightly reduced diameter at 108 and a small passayeway 110 opens into this section of reduced diameter.
Threaded into the rear end of the housing 90 is a generally cylindrical end piece 112 which has a conical surface 114 that engages the compressed gas cylinder. The member 112 has diametrically opposed notches 116 to permit removal thereof from the housing by means of a suitable tool. Located in the housing 90 is an annular seal 120 and puncture pin member 122 which is circular and formed with a small central hole 124. The pin formed on this puncture pin member punches a hole in the end of the gas cylinder 12 causing compressed gas to flow through the small hole 124 and out through the passageway 110 and into the compartment 92. Also located in the housing 90 is a filter screen 126 that prevents any foreign matter in the gas cylinder from passing into the gas passageways and gas valve system of the gun.
The aforementioned magazine cap 16 has threads 130 which engage into threads on the inside of a front end of the upper barrel. Also mounted on the upper barrel are a front sight 13~ and a detachably mounted rear sight 134. The rear sight is attached by a small screw or screws 136.
g The lower barrel 20 contains a gas valve systern indicated generally at 140 in Figure 2. This systern which is arranged in front of the hammer 42 includes a valve body 142 fixedly located in the barrel and 111ustrated in detail in Figure 4O This valve body has a gas chamber 144 therein and a forward gas passageway 146 which is connected to the gas charnber 144 when the gun is fired. The passageway 146 extends through the aforementioned pin ~6 which is an integral extension of the valve body. Extending around the valve body is an annular groove 150. The valve body is fixed in the lower barrel by means of two set screws 152 which project into the groove 150. The screws 152 are threaded into two holes 154 located on opposite side of the lower barrel. There is also a second annular groove 156 that extends around the valve body and that forms part of a sealed passageway leading to the gas chamber 144~ Another part of this passageway is a radially extending hole 158 that opens into the groove 156. Mounted on opposite sides of the groove 156 are two O-ring seals 160 and 162 that seal the gap between the valve body and the interior of the barrel, Means are provided for releasing compressed gas from the chamber 144 and through the forward gas passageway 146 to fire a pellet when the hammer is ~L26~8 released. In particular there is a valve stem 164 wi~h a shoulder 166 formed thereon. A first hollow portion of the valve stem extends though a valve spring 168, which spring biases the valve stern in the rearwards direction. A valve nut 170, preferably made of brass closes the gas charnber 144. This nut has external threads which engage threads formed in the end of the valve body. The valve nut is preferably recessed on its inside surface to accommodate a nylon washer seal 172 which is engaged by the shoulder portion of the valve stem. The valve stem includes a solid second portion 174 that extends through and out of a centre hole in the valve nut.
This solid second portion is struck by the hammer 42 when the gun is fired.
At the front end of gas chamber 144 is a steel valve washer 176 against which one end of the spring rests. Behind this washer is an O-ring seal 178 which rests against a shoulder 180 formed in the valve body. It will be understood that the O-ring seal seals the gap between the valve stem 164 and the side of the gas chamber. Accordingly in order for compressed gas to escape the chamber 144 it must pass around the shoulder 166 of the valve stem and into the central passageway of the valve stem. When the valve body is installed in ~he lower barrel, the aforementioned bolt spring 88 has one end resting z~
-- 1 l --against a front surface 180 of the valve body. This bolt spring biases both the bolt and the pump to a forward position so that it is not necessary to manually pull the pump member back to its forward position. Because of the central opening in the bolt, lhe bolt is slidable along the hollow pin 86.
In order to permit compressed gas to pass from the compartment 92 in the upper barrel and into the groove 156, a hole 190 extending between the two barrels is provided. This hole is located along a portion of the upper barrel that holds the gas cylinder and beside the valve body 142.
Various modifications and changes to the described gas fired gun will be apparent to those skilled in this art after considering the above description. Accordingly all such modifications and changes as Eall within the scope of the appended claims are intended to be part of this invention.
Various types oE air guns are known at -the present time. One common type uses small cylinders con-taining compressed C02. These metal cyclinders have an end -that can be punctured in order to release the C02 gas. Although guns of this -type have and can be used to fire lead pellets for game shooting or target shooting more recen-tly guns of -this -type have been developed to fire paint pellets. These guns can be used in mock "war games" wherein the users of the guns attempt to hit other game participants with a paint pellet. Goggles and other protective wear can be worn during such games to prevent injury.
The present invention provides an air gun for Eiring a pellet such as a paint pellet, which gun is reliable and easy to use. The air gun described herein has a secure mechanism for holding the gas cylinder and a reliable mechanism for delivering the compressed gas from the cylinder to the gas valve system of the gun.
According to the present invention an air gun for firing pellets using compressed gas from a gas cylinder mounted in the gun has a first barrel through which the pellets are fired and containing a ~2~12~
gas valve sys-tem. A second barrel is mounted on top of -the first barrel and provides a gas cylinder holder in the form of a sealable compartment into which -the cylinder is placed. A devlce for punching a hole in the gas cylinder is also provided~ There is a hole in the side of the barrel which opens into the aforementioned compartmen-t and through this hole compressed gas can pass from the compartment in-to the gas valve system.
A
Further features and advan-tages will become apparent from the Eollowing de-tailed description taken in conjunction with the accompanying drawings.
In the drawings, Figure l is a left side view of an air gun constructed .in accordance w.ith the invention;
Figure 2 is a blown apart view showing the various components that make up the present air gun including an optional rifle stock;
Figure 3 is a right side view of the ai. gun of Figure 1, which view shows the upper and lower barrels in axial cross section for purposes of illustration;
Figure 4 is an axial cross section of the valve body that is mounted in the lower barrel and the components arranged therein;
Figure 5 is an axial cross section of the punctu.re pin housing and the components mounted therein; and Figure ~ is a left side view of the upper and lower barrels only showing the arrangement of the holes and slots in the side thereof.
A completely assembled air or yas yun 10 constructed in accordance with the invention is shown in Figure 1. The illustrated gun employs a C02 cylinder 12 indicated in dash lines in Figure 3 and is adapted to fire paint pellets 14 of known construction. The pellets can be inserted into the front end of the gun by removing a magazine cap 16 which threads into the end of an upper barrel or tube 18. These pellets are able to drop individually into a lower barrel 20 through an opening 22 in the upper barrel. The gun is held by means of a gun handle 24, the parts of which can be seen in Figure 2. An optional rifle stock 26 can be attached by a suitable bolt if desired.
The gun 10 is fired by means of the trigger mechanisrn 28 which itself is of known construction and therefore this mechanism will not be described in detail except insofar as is required for purposes of the invention. This trigger mechanism is available from the Crossman Company located in Bloomingfield, New York, U.S.A. The trigger mechanism includes the trigger 30, a trigger enclosure 32 and a rigger operated lever 34. In this mechanism the rear end of the lever 34 is lowered by prassing the trigger 30 and then the lever rear end is pushed up after release of the trigger by the spring 36. The lever %~
34 has an upstanding projection on its rear end wllich engages in an annular groove 40 that extends about a hammer 42 located in the lower barrel. It will thus be understood how the hammer is released and the yun is fired by pulling on the trigger 30.
The aforementioned gun handle 24 includes two hand grip components 44, a cover 46 and a grip frame 48. The hand grips 44 are held in place by suitable screws 50. A safety pin is provided at 52 just to the rear of the trigger.
The gun 10 is loaded by pulling back on a slidable pump member 54, the construction of which can be seen clearly from Figure 2. The member 54 slides along the exterior oE the lower barrel 20 from which the pellets are fired. The front section of the pump member is preferably knurled as shown in Figure 1 to permit it to be easily gripped while the rear portion of this member is open at 56~ The pump member 54 has an elongate slot 58 formed on its left side as illustrated in Figure 1. A long pump screw 60 extends through the slot 58 and it ;s threaded into an opening in the rear section of the aforementioned hammer 42. The final rearward movement of the pump member 54 will thus pull the hammer 42 rearward against the pressure oE a hammer z~
spring 62 whicll is retained in the lower barrel by a spring housing 64. The spring llousing 64 is secured in the lower barrel by means o~ a set screw 66. This set screw 66 also fastens the grip fra,ne 48 to the lower barrel as illustrated in Fiyure 3.
rhe pump member 54 has a circular hole 70 located forwardly of the slot 58. Through this hole extends a pump screw 72 which also exte,nds through an elongate s]ot 74 formed in the side of the lower barrel 20. The end of the screw 72 is threaded into a bolt 76. In this way rearward movement of the pump member will draw the bolt 76 rearwardly so that a paint pellet 14 can drop through the opening 22 in the upper barrel and through an opening 78 is the lower barrel. ~hen the pump member moves forwardly to its forwardmost position, the paint pellet in front of the bolt is ready to be fired. The bolt 76 is generally cylindrical except for a flat side 80 positioned at the bottom. Mounted near the front end of the bolt is a suitable O-ring 82 which seals a small gap between the bolt and the inside of the barrel when the bolt ;s in its forward position as shown in Fiyure 3. The bolt has a central axial hole or passageway 84 in order to receive a hollow pin 86 described in more detail hereinafter.
Arranged about the pin 86 is a bolt spring 88 which acts to push both the bolt and the attached pump member towards their forward position when the pump mernber is releasedO Preferably the bolt spring is conical so that it re~uires a minimum space when compressed.
The narrow end of the spring is arranged against the rear surface of the bolt~
The preferred illustrated gun has means for holding and punching a hole in the gas cylinder 12 and this includes a puncture pin housing 90 illustrated in detail in Figure 5. The cylinder 12 is inserted into a sealable compartment 92 in the upper barrel, which compartment is closed by C02 cap 94. The cap 94 is formed with a knurled outer end 96 and threads 98 which engage threads formed on the inside of the end of the upper barrel 18. The cap 94 is fitted with an O-ring seal 100 which effectively seals the rear end of the compartment 92. The front end of the compartment 92 is sealed by another O-ring 102 that extends around the housing 90.
Referring to Figure 5 of the drawings, the housing 90 is formed with an annular groove 104 located a short distance forwardly of the seal 102.
The housing 90 is fixed in the upper barrel 18 by means of two set screws 106. These extend through two threaded holes 108 formed in opposite sides of the upper barrel. It will be understood that the ends of the set screws extend into the groove 104, thus ~2 E;~8 preventiny axial rnovement of the housing. The rear section of the housing 90 has a slightly reduced diameter at 108 and a small passayeway 110 opens into this section of reduced diameter.
Threaded into the rear end of the housing 90 is a generally cylindrical end piece 112 which has a conical surface 114 that engages the compressed gas cylinder. The member 112 has diametrically opposed notches 116 to permit removal thereof from the housing by means of a suitable tool. Located in the housing 90 is an annular seal 120 and puncture pin member 122 which is circular and formed with a small central hole 124. The pin formed on this puncture pin member punches a hole in the end of the gas cylinder 12 causing compressed gas to flow through the small hole 124 and out through the passageway 110 and into the compartment 92. Also located in the housing 90 is a filter screen 126 that prevents any foreign matter in the gas cylinder from passing into the gas passageways and gas valve system of the gun.
The aforementioned magazine cap 16 has threads 130 which engage into threads on the inside of a front end of the upper barrel. Also mounted on the upper barrel are a front sight 13~ and a detachably mounted rear sight 134. The rear sight is attached by a small screw or screws 136.
g The lower barrel 20 contains a gas valve systern indicated generally at 140 in Figure 2. This systern which is arranged in front of the hammer 42 includes a valve body 142 fixedly located in the barrel and 111ustrated in detail in Figure 4O This valve body has a gas chamber 144 therein and a forward gas passageway 146 which is connected to the gas charnber 144 when the gun is fired. The passageway 146 extends through the aforementioned pin ~6 which is an integral extension of the valve body. Extending around the valve body is an annular groove 150. The valve body is fixed in the lower barrel by means of two set screws 152 which project into the groove 150. The screws 152 are threaded into two holes 154 located on opposite side of the lower barrel. There is also a second annular groove 156 that extends around the valve body and that forms part of a sealed passageway leading to the gas chamber 144~ Another part of this passageway is a radially extending hole 158 that opens into the groove 156. Mounted on opposite sides of the groove 156 are two O-ring seals 160 and 162 that seal the gap between the valve body and the interior of the barrel, Means are provided for releasing compressed gas from the chamber 144 and through the forward gas passageway 146 to fire a pellet when the hammer is ~L26~8 released. In particular there is a valve stem 164 wi~h a shoulder 166 formed thereon. A first hollow portion of the valve stem extends though a valve spring 168, which spring biases the valve stern in the rearwards direction. A valve nut 170, preferably made of brass closes the gas charnber 144. This nut has external threads which engage threads formed in the end of the valve body. The valve nut is preferably recessed on its inside surface to accommodate a nylon washer seal 172 which is engaged by the shoulder portion of the valve stem. The valve stem includes a solid second portion 174 that extends through and out of a centre hole in the valve nut.
This solid second portion is struck by the hammer 42 when the gun is fired.
At the front end of gas chamber 144 is a steel valve washer 176 against which one end of the spring rests. Behind this washer is an O-ring seal 178 which rests against a shoulder 180 formed in the valve body. It will be understood that the O-ring seal seals the gap between the valve stem 164 and the side of the gas chamber. Accordingly in order for compressed gas to escape the chamber 144 it must pass around the shoulder 166 of the valve stem and into the central passageway of the valve stem. When the valve body is installed in ~he lower barrel, the aforementioned bolt spring 88 has one end resting z~
-- 1 l --against a front surface 180 of the valve body. This bolt spring biases both the bolt and the pump to a forward position so that it is not necessary to manually pull the pump member back to its forward position. Because of the central opening in the bolt, lhe bolt is slidable along the hollow pin 86.
In order to permit compressed gas to pass from the compartment 92 in the upper barrel and into the groove 156, a hole 190 extending between the two barrels is provided. This hole is located along a portion of the upper barrel that holds the gas cylinder and beside the valve body 142.
Various modifications and changes to the described gas fired gun will be apparent to those skilled in this art after considering the above description. Accordingly all such modifications and changes as Eall within the scope of the appended claims are intended to be part of this invention.
Claims (13)
1. An air gun for firing pellets comprising:
a lower barrel through which said pellets are fired, a hammer mechanism mounted in a rear end portion of said lower barrel, said mechanism including a hammer spring and a hammer, an upper barrel mounted on said lower barrel, means for holding and punching a hole in a gas cylinder mounted in said upper barrel, said means including a puncture pin housing fixed in said upper barrel, a gun handle connected to said lower barrel, a trigger mechanism, a gas valve system arranged in said lower barrel in front of said hammer, said system including a valve body fixedly located in said lower barrel, said valve body having a gas chamber therein and a forward gas passageway which is connected to said gas chamber when said gun is fired, a hole extending between said upper and lower barrels and located along a portion of the upper barrel that holds the gas cylinder and beside said valve body, a sealed passageway leading from said hole to said gas chamber, means for moving said hammer rearwardly to compress said hammer spring and cock said gun, said hammer being releasable by said trigger mechanism, and means for releasing compressed gas from said gas chamber and through said forward gas passageway to fire a pellet when said hammer is released.
a lower barrel through which said pellets are fired, a hammer mechanism mounted in a rear end portion of said lower barrel, said mechanism including a hammer spring and a hammer, an upper barrel mounted on said lower barrel, means for holding and punching a hole in a gas cylinder mounted in said upper barrel, said means including a puncture pin housing fixed in said upper barrel, a gun handle connected to said lower barrel, a trigger mechanism, a gas valve system arranged in said lower barrel in front of said hammer, said system including a valve body fixedly located in said lower barrel, said valve body having a gas chamber therein and a forward gas passageway which is connected to said gas chamber when said gun is fired, a hole extending between said upper and lower barrels and located along a portion of the upper barrel that holds the gas cylinder and beside said valve body, a sealed passageway leading from said hole to said gas chamber, means for moving said hammer rearwardly to compress said hammer spring and cock said gun, said hammer being releasable by said trigger mechanism, and means for releasing compressed gas from said gas chamber and through said forward gas passageway to fire a pellet when said hammer is released.
2. An air gun according to claim 1 including a sliding bolt in said lower barrel and wherein said upper barrel has a forward chamber for receiving a number of pellets and openings are formed in said upper and lower barrels to permit a pellet to drop from said upper barrel into said lower barrel when said bolt is pulled back.
3. An air gun according to claim 1 wherein said hammer moving means comprises a pump member slidable along the exterior of said lower barrel and means for biasing said pump member to a forward position after said gun is cocked, said biasing means including a bolt slidable in said lower barrel.
4. An air gun according to claim 1, 2 or 3 wherein said housing has a puncture pin mounted in one end thereof and a hole in a side thereof permitting compressed gas to pass from said puncture pin housing to said portion of said upper barrel containing said gas cylinder.
5. An air gun according to claim 1, 2 or 3 wherein said valve system includes a valve stem with a shoulder formed thereon, a valve spring through which a first, hollow portion of said valve stem extends, said valve spring biasing said valve stem in the rearwards direction, and a valve nut having external threads and a washer seal mounted on its inner surface, a second portion of said valve stem extending through and out of the hole in said valve nut, and wherein said valve nut is threaded into an opening in the rear end of said valve body.
6. An air gun according to claim 1 wherein said puncture pin housing has a hole in a side thereof permitting compressed gas to pass out of said housing to said portion of said upper barrel containing said gas chamber and wherein said valve system includes a valve stem with a shoulder formed thereon, a valve spring through which a first, hollow portion of said valve stem extends, said valve spring biasing said valve stem in the rearwards direction, and a valve nut having external threads and a washer seal mounted on its inner surface, a second portion of said valve stern extending through and out of the hole in said valve nut, and wherein said valve nut is threaded into an opening in the rear end of said valve body.
7. An air gun according to claim 1, 2 or 6 including a bolt slidably arranged in said lower barrel forwardly of said valve body and a bolt spring positioned between said bolt and a frontal surface of said valve body, and wherein said hammer moving means comprises a pump member slidable along the exterior of said lower barrel and connected to said bolt so that said bolt spring biases said pump member to its forward position.
8. An air gun according to claim 1 or 6 wherein said valve body has a hollow pin extending forwardly and centrally in said lower barrel, said hollow pin forming at least a major portion of said forward gas passageway and wherein a pellet loading bolt is slidably arranged in said lower barrel, said bolt having a central, axial hole through which said pin extends and being connected to a pump that comprises said hammer moving means.
9. An air gun according to claim 3 wherein said biasing means is a pellet loading bolt slidably arranged in said lower barrel and connected to said pump member and a bolt spring located rearwardly of said bolt and biasing same towards a forward position.
10. An air gun according to claim 9, wherein said bolt spring is a conical coil spring and the rear end of said bolt spring rests against a front surface of said valve body.
11. In an air gun for firing pellets using compressed gas from a gas cylinder mounted in said gun, a first barrel through which pellets are fired and containing a gas valve system, a second barrel mounted on top of said first barrel and providing a gas cylinder holder in the form of a sealable compartment into which said cylinder is placed, means for punching a hole in said gas cylinder, and a hole in the side of said first barrel and opening into said second barrel and said compartment through which compressed gas can pass from said compartment into said gas valve system.
12. An air gun according to claim 11 wherein said second barrel has a pellet holding passageway and a hole in the side thereof for the passage of individual pellets into said first barrel.
13. An air gun according to claim 11 or 12 wherein said gas valve system includes a valve body fixedly located in the barrel, said valve body having a gas chamber therein and a forward gas passageway which is connected to said gas chamber when said gun is fired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000578891A CA1264128A (en) | 1988-09-29 | 1988-09-29 | Air gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000578891A CA1264128A (en) | 1988-09-29 | 1988-09-29 | Air gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1264128A true CA1264128A (en) | 1990-01-02 |
Family
ID=4138820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000578891A Expired CA1264128A (en) | 1988-09-29 | 1988-09-29 | Air gun |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1264128A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0467089A2 (en) * | 1990-06-21 | 1992-01-22 | Thomas G. Kotsiopoulos | Semi-automatic firing compressed gas gun |
| US5257614A (en) * | 1992-07-20 | 1993-11-02 | Brian Sullivan | Gas powered gun |
| US5339791A (en) * | 1992-07-20 | 1994-08-23 | Brian Sullivan | Gas powered gun |
| US5349939A (en) * | 1992-08-13 | 1994-09-27 | Brass Eagle Inc. | Semi-automatic gun |
| US5497758A (en) * | 1994-06-23 | 1996-03-12 | Dobbins; Jerrold M. | Compressed gas powered gun |
| US5634456A (en) * | 1995-10-23 | 1997-06-03 | Daisy Manufacturing Company, Inc. | Semi-automatic gun |
| WO1998027398A1 (en) * | 1996-12-18 | 1998-06-25 | Umarex Sportwaffen Gmbh & Co. Kg | Compressed-gas firearm |
| US5771875A (en) * | 1995-04-28 | 1998-06-30 | Sullivan; Brian E. | Gas powered repeating gun |
| US6343599B1 (en) | 2000-07-26 | 2002-02-05 | Aldo Perrone | Paintball gun with pulse valve firing mechanism |
| US7765997B2 (en) | 2006-12-08 | 2010-08-03 | Umarex Sportwaffen Gmbh & Co. Kg | Magazine for a firearm |
-
1988
- 1988-09-29 CA CA000578891A patent/CA1264128A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0467089A2 (en) * | 1990-06-21 | 1992-01-22 | Thomas G. Kotsiopoulos | Semi-automatic firing compressed gas gun |
| EP0467089A3 (en) * | 1990-06-21 | 1992-09-30 | Thomas G. Kotsiopoulos | Semi-automatic firing compressed gas gun |
| US5257614A (en) * | 1992-07-20 | 1993-11-02 | Brian Sullivan | Gas powered gun |
| US5339791A (en) * | 1992-07-20 | 1994-08-23 | Brian Sullivan | Gas powered gun |
| US5349939A (en) * | 1992-08-13 | 1994-09-27 | Brass Eagle Inc. | Semi-automatic gun |
| US5497758A (en) * | 1994-06-23 | 1996-03-12 | Dobbins; Jerrold M. | Compressed gas powered gun |
| US5771875A (en) * | 1995-04-28 | 1998-06-30 | Sullivan; Brian E. | Gas powered repeating gun |
| US5634456A (en) * | 1995-10-23 | 1997-06-03 | Daisy Manufacturing Company, Inc. | Semi-automatic gun |
| WO1998027398A1 (en) * | 1996-12-18 | 1998-06-25 | Umarex Sportwaffen Gmbh & Co. Kg | Compressed-gas firearm |
| US6343599B1 (en) | 2000-07-26 | 2002-02-05 | Aldo Perrone | Paintball gun with pulse valve firing mechanism |
| US7765997B2 (en) | 2006-12-08 | 2010-08-03 | Umarex Sportwaffen Gmbh & Co. Kg | Magazine for a firearm |
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