Mar 17, 2026

US12578161 - Archery cam set for compound bows

A set of archery cam devices for an archery bow is disclosed herein, including first and second cam devices configured to be rotatably coupled to first and second limbs of an archery bow, and having first and second bowstring sheaves, first and second control sheaves, and first and second power cable sheaves. When the archery bow is vertically oriented: a vertical riser plane extends through the riser ends; a vertical bowstring plane extends through the first and second bowstring sheaves; a vertical control plane extends through the first and second control sheaves; first and second vertical power cable planes extend through the first and second power cable sheaves; the vertical bowstring plane and the vertical control plane are located on opposite sides of the vertical riser plane; and the first and second vertical power cable planes are located on opposite sides of the vertical riser plane.

archerybowcamdevice

The patent describes a set of archery cam devices designed for compound bows, featuring first and second cam devices that are rotatably attached to the bow’s limbs and include various sheaves for bowstring and control cables. The configuration ensures that specific vertical planes related to the bowstring, control, and power cables are aligned correctly when the bow is in a vertical position.

Claim 1

1 . A set of archery cam devices, the set comprising: a first cam device configured to be rotatably coupled to a first limb of an archery bow, the first cam device comprising a first bowstring sheave, a first control sheave, and a first power cable sheave; and a second cam device configured to be rotatably coupled to a second limb of the archery bow, the second cam device comprising a second bowstring sheave, a second control sheave, and a second power cable sheave, wherein the archery bow comprises a riser that comprises a first riser end and an opposing second riser end, wherein, when the first and second cam devices are coupled to the first and second limbs, respectively, while the archery bow is vertically oriented: a vertical riser plane extends through the first and second riser ends, a vertical bowstring plane extends through the first bowstring sheave and the second bowstring sheave; a vertical control plane extends through the first control sheave and the second control sheave; a first vertical power cable plane extends through the first power cable sheave; a second vertical power cable plane extends through the second power cable sheave; the vertical bowstring plane and the vertical control plane are located on opposite sides of the vertical riser plane; and the first and second vertical power cable planes are located on opposite sides of the vertical riser plane. a first cam device configured to be rotatably coupled to a first limb of an archery bow, the first cam device comprising a first bowstring sheave, a first control sheave, and a first power cable sheave; and a second cam device configured to be rotatably coupled to a second limb of the archery bow, the second cam device comprising a second bowstring sheave, a second control sheave, and a second power cable sheave, wherein the archery bow comprises a riser that comprises a first riser end and an opposing second riser end, wherein, when the first and second cam devices are coupled to the first and second limbs, respectively, while the archery bow is vertically oriented: a vertical riser plane extends through the first and second riser ends, a vertical bowstring plane extends through the first bowstring sheave and the second bowstring sheave; a vertical control plane extends through the first control sheave and the second control sheave; a first vertical power cable plane extends through the first power cable sheave; a second vertical power cable plane extends through the second power cable sheave; the vertical bowstring plane and the vertical control plane are located on opposite sides of the vertical riser plane; and the first and second vertical power cable planes are located on opposite sides of the vertical riser plane. a vertical riser plane extends through the first and second riser ends, a vertical bowstring plane extends through the first bowstring sheave and the second bowstring sheave; a vertical control plane extends through the first control sheave and the second control sheave; a first vertical power cable plane extends through the first power cable sheave; a second vertical power cable plane extends through the second power cable sheave; the vertical bowstring plane and the vertical control plane are located on opposite sides of the vertical riser plane; and the first and second vertical power cable planes are located on opposite sides of the vertical riser plane.

Google Patents

https://patents.google.com/patent/US12578161

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12578161

Use the arrows to move through the archive in gazette order.