Pulley projectile launcher
AssigneeRavin Crossbows, LLC
InventorPaul Trpkovski
Life of this patent
Estimating the term…
Abstract
A projectile launcher includes a frame and a projectile moves within a horizontal projectile plane and along the projectile axis. The projectile is fired from a front end of the frame. The projectile launcher includes a first power group at a first frame side. The first power group includes a plurality of first power group drawstring pulleys. At least one of the plurality of first power group drawstring pulleys is attached to the frame. The projectile launcher further includes a second power group at a second frame side. The second power group includes a plurality of second power group drawstring pulleys. At least one of the plurality of second power group drawstring pulleys is attached to the frame. The drawstring is configured to be routed at least partially around the first and second power group drawstring pulleys.
Claims15
A projectile launcher comprising:
- a frame defining a horizontal projectile plane at a top side in which a projectile axis is positioned;
- a flexible limb having a first end attached to the frame and a second end;
- a power group associated with the flexible limb and including at least three coaxial, separately rotatable power group drawstring pulleys rotatably coupled to the flexible limb;
- and
- a drawstring having first and second drawstring ends, the drawstring traveling at least partially perpendicular to the projectile axis between the first and the second drawstring ends and engaged with the power group drawstring pulleys.
A projectile launcher comprising:
- a frame defining a horizontal projectile plane at a top side in which a projectile axis is positioned;
- a flexible limb including a first end attached to the frame and a second end;
- a power group at a first frame side, the power group including a plurality of separately rotatable power group drawstring pulleys, at least one of the plurality of power group drawstring pulleys being attached to the frame, at least one of the plurality of power group drawstring pulleys being attached to the flexible limb, and at least three of the plurality of power group drawstring pulleys positioned around a single shaft and separated from one another via a spacer;
- and
- a guide pulley coupled to the frame, the guide pulley positioned downrange from the plurality of power group drawstring pulleys along the projectile axis.
Dependencies are inferred from the claim text.