Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: A pre-charged pneumatic airgun includes a reservoir, a stopper, a barrel and a manually actuated degassing tool. The reservoir contains a volume of compressed fluid and includes a discharge port disposed therein through which the compressed fluid is selectively discharged from the reservoir. The stopper is disposed in the discharge port and is moveable between a normal position sealing the discharge port in an actuated position allowing passage of the compressed air through the discharge port. The stopper is biased to the normal position by a biasing force. The barrel is in fluid communication with the discharge port. When the stopper is disposed in the discharged position, the compressed fluid discharged through the discharge port is further exhausted through the barrel.

Abstract: A pre-charged pneumatic airgun includes a reservoir, a stopper, a barrel and a manually actuated degassing tool. The reservoir contains a volume of compressed fluid and includes a discharge port disposed therein through which the compressed fluid is selectively discharged from the reservoir. The stopper is disposed in the discharge port and is moveable between a normal position sealing the discharge port in an actuated position allowing passage of the compressed air through the discharge port. The stopper is biased to the normal position by a biasing force. The barrel is in fluid communication with the discharge port. When the stopper is disposed in the discharged position, the compressed fluid discharged through the discharge port is further exhausted through the barrel.

Abstract: A magazine assembly presents a pressure cartridge to a compressed gas powered device, such as a gun, wherein the magazine assembly has a cartridge support biased with respect to a magazine to urge the pressure cartridge to a short (or seated) position, wherein an interlock plate is biased to engage the cartridge support. The bias on the interlock plate is overcome during insertion of the magazine assembly into a magazine chamber, at which point the cartridge support moves relative to the magazine in response to a seated length of the pressure cartridge. The bias on the interlock plate then controls the positioning of the interlock plate to engage the cartridge support and retain the pressure cartridge relative to the magazine assembly. A lever connected to the gun then engages the magazine assembly to translate the magazine assembly relative to the gun and pierce the pressure cartridge.

Abstract: A detector receives energy pulses and a lossy integration circuit generates a lossy integration that, for each pulse, increases over the pulse duration to a maximum value and then decays. The lossy integration is sampled, with a sampling rate and decay rate such that the sample is within a given acceptable error of the maximum value. The sample represents the pulse total energy, within the given acceptable error. An optional circuit and processing function calculates a total accumulated energy over a plurality of pulses.

Abstract: A detector receives energy pulses and a lossy integration circuit generates a lossy integration that, for each pulse, increases over the pulse duration to a maximum value and then decays. The lossy integration is sampled, with a sampling rate and decay rate such that the sample is within a given acceptable error of the maximum value. The sample represents the pulse total energy, within the given acceptable error. An optional circuit and processing function calculates a total accumulated energy over a plurality of pulses.

Abstract: A magazine assembly presents a pressure cartridge to a compressed gas powered device, such as a gun, wherein the magazine assembly has a cartridge support biased with respect to a magazine to urge the pressure cartridge to a short (or seated) position, wherein an interlock plate is biased to engage the cartridge support. The bias on the interlock plate is overcome during insertion of the magazine assembly into a magazine chamber, at which point the cartridge support moves relative to the magazine in response to a seated length of the pressure cartridge. The bias on the interlock plate then controls the positioning of the interlock plate to engage the cartridge support and retain the pressure cartridge relative to the magazine assembly. A lever connected to the gun then engages the magazine assembly to translate the magazine assembly relative to the gun and pierce the pressure cartridge.