Abstract: Various embodiments are described that relate to a detector. The detector can include a loop functioning at a high frequency that emits a magnetic field. The magnetic field can be retrieved and a comparison can be made between the emitted magnetic field and the retrieved magnetic field. If there is substantially little difference between the emitted and retrieved field, then a determination can be that no object is present. Conversely, if there is a substantial difference between the emitted and retrieved field, then the determination can be that an object is present and thus the object is detected. If the object is present, the returned magnetic field can be further analyzed to determine the type of object that is detected.

Abstract: Various embodiments are described that relate to a loop with a constant phase. The loop can function as an antenna and be used in object detection. A current source can be used to power the loop such that the loop produces a magnetic field and electric field. The magnetic field can be powerful enough to detect a dielectric while the electric field is so small that it does not interfere with nearby communication equipment. Thus, detection can occur without disruption of other important devices.

Abstract: Various embodiments are described that relate to a loop with a constant phase. The loop can function as an antenna and be used in object detection. A current source can be used to power the loop such that the loop produces a magnetic field and an electric field. The magnetic field can be powerful enough to detect a dielectric while the electric field is so small that it does not interfere with nearby communication equipment. Thus, detection can occur without disruption of other important devices.

Abstract: Various embodiments are described that relate to a loop with a constant phase. The loop can function as an antenna and be used in object detection. A current source can be used to power the loop such that the loop produces a magnetic field and electric field. The magnetic field can be powerful enough to detect a dielectric while the electric field is so small that it does not interfere with nearby communication equipment. Thus, detection can occur without disruption of other important devices.

Abstract: Various embodiments are described that relate to a loop with a constant phase. The loop can function as an antenna and be used in object detection. A current source can be used to power the loop such that the loop produces a magnetic field and electric field. The magnetic field can be powerful enough to detect a dielectric while the electric field is so small that it does not interfere with nearby communication equipment. Thus, detection can occur without disruption of other important devices.

Abstract: Various embodiments are described that relate to a loop with a constant phase. The loop can function as an antenna and be used in object detection. A current source can be used to power the loop such that the loop produces a magnetic field and electric field. The magnetic field can be powerful enough to detect a dielectric while the electric field is so small that it does not interfere with nearby communication equipment. Thus, detection can occur without disruption of other important devices.

Abstract: Various embodiments are described that relate to a detector. The detector can include a loop functioning at a high frequency that emits a magnetic field. The magnetic field can be retrieved and a comparison can be made between the emitted magnetic field and the retrieved magnetic field. If there is substantially little difference between the emitted and retrieved field, then a determination can be that no object is present. Conversely, if there is a substantial difference between the emitted and retrieved field, then the determination can be that an object is present and thus the object is detected. If the object is present, the returned magnetic field can be further analyzed to determine the type of object that is detected.

Abstract: Various embodiments are described that relate to a loop with a constant phase. The loop can function as an antenna and be used in object detection. A current source can be used to power the loop such that the loop produces a magnetic field and electric field. The magnetic field can be powerful enough to detect a dielectric while the electric field is so small that it does not interfere with nearby communication equipment. Thus, detection can occur without disruption of other important devices.

Abstract: A rapid fire ball gun includes a hollow body supporting a pressurizable air vessel and an air pump coupled thereto through a check valve. An elongated cylindrical barrel is supported by the body and defines a cylindrical ball chamber having a plurality of spaced intermediate fields forming ball spaces therebetween and a final seal at the extending end of the cylindrical barrel. A plurality of compressible foam balls are received within the ball spaces between the intermediate seals with the outermost ball being received in a ball spaced defined between the final seal and the most forward intermediate seal. The cylindrical barrel is coupled to the pressurizable air vessel by a trigger valve mechanism which responds to trigger pressure by coupling the pressurized air within the air vessel to the barrel thereby expelling one or more of the compressible foam balls from the barrel.

Abstract: A double shot projectile launcher includes a hollow pistol-like body supporting a pair of forwardly extending hollow launch tubes having open ends. A pair of lightweight projectiles defining interior closed end passages are received upon the launch tubes. Each launch tube defines an annular detent groove which cooperates with an inwardly extending seal member on the projectiles to provide a sealing engagement and restraining force to improve launch performance. A compressible air bellows is supported on the upper portion of the gun body and is coupled to the launch tube through an air selection valve and trigger mechanism which permits the coupling of pressurized air from the bellows upon impact thereto to be directed selectively to either of the launch tubes through trigger positioning.