Airgun with rotary actuator
First Claim
Patent Images
1. An air operated projectile launcher comprising:
- a frame;
a hand crank operably carried on the frame for rotation about an axis;
an air chamber;
a plunger movably disposed for compressing air within said air chamber;
a discharge port for exhausting compressed air from said air chamber;
a launching barrel for holding a projectile in alignment with said discharge port;
means for forming a substantially airtight seal between said discharge port and said launching barrel;
means for transferring energy from said hand crank to said plunger such that said plunger is caused to compress the air within said air chamber and thereby eject the projectile from the launching barrel;
a projectile magazine having a plurality of projectile launching barrels joined by a supporting structure;
a magazine advancement mechanism for successively placing said barrels into firing alignment with said discharge port;
means for operatively coupling said advancement mechanism with said means for transferring energy such that said magazine is advanced in synchronism with movement of said plunger.
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0 Petitions
Accused Products
Abstract
A multi-shot airgun employs a hand crank for cocking and firing of an air pump, and advancement of a multi-projectile magazine. Turning the crank causes the pump'"'"'s plunger to be cycled back and forth to cock and discharge the pump. Turning the crank additionally actuates a projectile advancement mechanism. The advancement mechanism sequentially positions a plurality of projectiles in firing alignment with an air discharge port of the pump. Continuous rotation of the crank results in discharge of the projectiles in rapid succession. A high capacity magazine is provided in the form of a long, continuously looped ammunition belt to allow extended firing time between loadings.
82 Citations
33 Claims
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1. An air operated projectile launcher comprising:
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a frame; a hand crank operably carried on the frame for rotation about an axis; an air chamber; a plunger movably disposed for compressing air within said air chamber; a discharge port for exhausting compressed air from said air chamber; a launching barrel for holding a projectile in alignment with said discharge port; means for forming a substantially airtight seal between said discharge port and said launching barrel; means for transferring energy from said hand crank to said plunger such that said plunger is caused to compress the air within said air chamber and thereby eject the projectile from the launching barrel; a projectile magazine having a plurality of projectile launching barrels joined by a supporting structure; a magazine advancement mechanism for successively placing said barrels into firing alignment with said discharge port; means for operatively coupling said advancement mechanism with said means for transferring energy such that said magazine is advanced in synchronism with movement of said plunger.
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2. An air operated projectile launcher comprising:
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a frame; a hand crank operably carried on the frame for rotation about an axis; an air chamber; a plunger movably disposed for compressing air within said air chamber; a discharge port for exhausting compressed air from said air chamber; a launching barrel for holding a projectile in alignment with said discharge port; means for forming a substantially airtight seal between said discharge port and said launching barrel; means for transferring energy from said hand crank to said plunger such that said plunger is caused to compress the air within said air chamber and thereby eject the projectile from the launching barrel; wherein said means for transferring energy from the hand crank to the plunger comprises a cocking mechanism to move the plunger from a discharged position to a cocked position and a propulsion mechanism to cause said plunger to move through a firing stroke from said cocked position to said discharged position; wherein said cocking and propulsion mechanisms comprise a rotatory cam, rotation of said cam being synchronous with actuation of said crank, said cam being in substantially constant engagement with said plunger, whereby rotation of said crank causes said cam to alternately pull and push said plunger for reciprocating travel between said cocked position and said discharged position.
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3. An air operated projectile launcher comprising:
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a frame; a hand crank operably carried on the frame for rotation about an axis; an air chamber; a plunger movably disposed for compressing air within said air chamber; a discharge port for exhausting compressed air from said air chamber; a launching barrel for holding a projectile in alignment with said discharge port; means for forming a substantially airtight seal between said discharge port and said launching barrel; means for transferring energy from said hand crank to said plunger such that said plunger is caused to compress the air within said air chamber and thereby eject the projectile from the launching barrel; wherein said means for transferring energy from the hand crank to the plunger comprises a cocking mechanism to move the plunger from a discharged position to a cocked position and a propulsion mechanism to cause said plunger to move through a firing stroke from said cocked position to said discharged position; wherein said cocking mechanism comprises; a torsion spring adapted to be biased by actuation of said crank; a rotatory cam engageable with said plunger to move said plunger from said discharged position to said cocked position, wherein bias of said torsion spring urges said cam to rotate; a latch for preventing rotation of said cam; a latch release mechanism for disengaging said latch to allow rotation of said cam. - View Dependent Claims (4)
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5. An air operated projectile launcher comprising:
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a frame; a hand crank operably carried on the frame for rotation about an axis; an air chamber; a plunger movably disposed for compressing air within said air chamber; a discharge port for exhausting compressed air from said air chamber; a launching barrel for holding a projectile in alignment with said discharge port; means for forming a substantially airtight seal between said discharge port and said launching barrel; means for transferring energy from said hand crank to said plunger such that said plunger is caused to compress the air within said air chamber and thereby eject the projectile from the launching barrel; wherein said means for transferring energy from the hand crank to the plunger comprises a cocking mechanism to move the plunger from a discharged position to a cocked position and a propulsion mechanism to cause said plunger to move through a firing stroke from said cocked position to said discharged position; a projectile magazine having a plurality of projectile launching barrels joined by a supporting structure; a magazine advancement mechanism for successively placing said barrels into firing alignment with said discharge port; means for operatively coupling said advancement mechanism with said cocking and propulsion mechanisms such that said magazine is advanced in synchronism with movement of said plunger. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An air operated projectile launcher with projectiles, comprising:
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a frame; a projectile magazine detachably coupled to said frame, said projectile magazine having a plurality of barrels; a plurality of projectiles carried by said barrels; means for providing a volume of pressurized air to said barrels to launch said projectiles from said barrels; a nozzle coupled to said means for providing pressurized air, said nozzle movable from a retracted position to an extended position such that said means for providing pressurized air is sealed to one of said barrels when said nozzle is in said extended position; magazine advancement means for moving and aligning one of said barrels with said means for providing pressurized air; and a crank, rotation of which causes one of said barrels to move into alignment with said means for providing pressurized air and to cause said means for providing pressurized air to eject said projectile from said aligned barrel. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification