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US 7,891,348 B2Granted
Compact crossbow with improved efficiency
OwnerDavid E. Colleyinventor
Life of this patent
Estimating the term…
Abstract
A “cross-over” compound crossbow includes a stock and barrel assembly attached to a horizontally mounted compound bow. The compound bow component is similar to that of U.S. Pat. No. 7,047,958 and includes an alternative arrow support system to achieve higher arrow velocity at a reduced draw weight. The crossover compound bow also provides draw weight adjustability and positive cam synchronization.
Claims9
A compound crossbow comprising:
- a stock having a butt end and a fore end, said stock supporting a barrel, a hand grip, a release mechanism including a trigger, and a sight mount;
- a riser attached to the fore end of the stock and having a center section providing a mounting for an arrow rest;
- an arrow rest attached to the mounting;
- a pair of limbs mounted to the riser, each limb having a proximal end connected to the riser and a distal end terminating at a tip;
- a pair of idler spools, one mounted at each limb tip;
- a pair of pockets mounted to the riser, the proximal end of each limb being pivotally mounted in a respective one of said pockets;
- a limb bolt anchor pivotally connected to the riser by respective pylons adjacent each limb pocket;
- an adjusting bolt adjustably connecting each limb pocket to its respective limb bolt anchor whereby bowstring tension can be altered or eliminated;
- a pair of pylons, each comprising a pair side plates mounted on opposite sides of said riser;
- a pair of cam and intermediate spool assemblies, each supported by a respective one of said pylons between said plates;
- and
- a synchronization system constraining the cams to rotate in unison.
9 more elements
Dependencies are inferred from the claim text.