Patent ID: 11946718
Assignee: RAVIN CROSSBOWS, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A crossbow comprising:
a frame including a projectile axis, wherein a projectile moves along the projectile axis during firing of the crossbow, and wherein the projectile is fired from a front end of the frame;
a first flexible limb and a second flexible limb, each first and second flexible limb having a first end attached to the frame and a second end, wherein the first and second flexible limbs are in an unloaded position when the crossbow is undrawn and in a loaded position when the crossbow is drawn;
a first cam attached at a first frame side, wherein the first cam has a larger diameter portion and a smaller diameter portion, the first cam further including a rotational axis substantially parallel to the projectile axis;
a second cam attached at a second frame side, wherein the second cam has a larger diameter portion and a smaller diameter portion, the second cam further including a rotational axis substantially parallel to the projectile axis;
a first power cable at the first frame side, the first power cable having a first and second end, the first end of the first power cable attached to the frame and the second end of the first power cable attached to the smaller diameter portion of the first cam;
a second power cable at the second frame side, the second power cable having a first and second end, the first end of the second power cable attached to the frame and the second end of the second power cable attached to the smaller diameter portion of the second cam;
a drawstring having a first and second end, wherein the first end is attached to the larger diameter portion of the first cam and the second end is attached to the larger diameter portion of the second cam; and
wherein the drawstring wraps at least partially around the larger diameter portions of the cams when the crossbow is undrawn and wherein the first and second power cables wrap at least partially around the smaller diameter portions of the cams when the crossbow is in the loaded position.