Abstract: A pump is provided featuring a housing and battery configuration, where the housing is configured with a battery receiving portion having electrical terminals for receiving power to the pump, and where the battery has a protruding portion with corresponding electrical terminals configured to contact the electrical terminals to provide power to the pump when the protruding portion of the battery is inserted into the battery receiving portion of the housing and rotated in one direction to an “ON” position, and also configured not to contact the electrical terminals when the battery is not rotated to the “ON” position.

Abstract: A pump is provided featuring a housing and battery configuration, where the housing is configured with a battery receiving portion having electrical terminals for receiving power to the pump, and where the battery has a protruding portion with corresponding electrical terminals configured to contact the electrical terminals to provide power to the pump when the protruding portion of the battery is inserted into the battery receiving portion of the housing and rotated in one direction to an “ON” position, and also configured not to contact the electrical terminals when the battery is not rotated to the “ON” position.

Abstract: A low pressure, low velocity projectile marker for youth shooting sports as an acceptable alternative to the traditional sport of paintball. The marker includes an onboard, hand activated pressure system to charge an air reservoir up to a maximum pressure of 150 psi (11 kg/cm2) as limited by a pressure relief valve. A removable barrel/magazine assembly stores and visibly displays a plurality of projectiles. The barrel/magazine assembly is inserted and sealably locked into a pressure deliver conduit of the marker. A trigger mechanism operates a fire control valve to precisely release a controlled, momentary pulse of compressed air in order to discharge a single projectile through the barrel of the marker.

Abstract: In summary, a lower impact, reusable marker projectile for youth shooting sports as an acceptable alternative to the traditional sport of paintball. The projectile is fabricated from durable polymer material to conform to the circular bore of a barrel for discharge under the influence of a pneumatic or mechanical force. The projectile incorporates a marking agent retainer to carry a sufficient quantity of liquid or powder marking agent to leave a visual indication of impact location on a target. The projectile may alternatively be formed in a general cone-shape or a sphere-shape. The cone-shaped projectiles are capable of being nested without distortion and without wedging for the purpose of condensed storage.