Adjustable cam for a crossbow

Details Adjustable cam for a crossbow Adjustable cam for a crossbow

2007-03-13

2007-03-13

Ricci, John A. (Department: 3711)

Mechanical guns and projectors

Spring

Bow

C124S025000, C124S900000

Reexamination Certificate

active

11047718

ABSTRACT:
An adjustable cam for a crossbow has a main disk, a weight-adjusting block and a length-adjusting block. The main disk has two sides, a group of string hooks, a group of weight-selecting holes, and a group of length-selecting holes. The group of string hooks is formed on one side of the main disk. The group of weight-selecting holes and the group of length-selecting holes are defined through the main disk in different areas. The weight-adjusting and the length-adjusting blocks are pivotally and coaxially mounted on the other side of the main disk. Each block has a securing hole to engage the one hole in a corresponding group. By attaching a bowstring to different string hooks and engaging the blocks to the corresponding hole in the groups, tension degrees and draw lengths are adjustable in various modifications to make the crossbow have versatile options to satisfy different users.

REFERENCES:
patent: 4967721 (1990-11-01), Larson
patent: 5960778 (1999-10-01), Larson
patent: 6082347 (2000-07-01), Darlington
patent: 6250293 (2001-06-01), Andrews
patent: 6360735 (2002-03-01), Larson et al.
patent: 6575153 (2003-06-01), Lommasson et al.
patent: 6691692 (2004-02-01), Adkins

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