Abstract: In some embodiments, an archery bow comprises a riser, a first limb and a second limb. A first rotatable member is arranged to rotate about a first axis and a second rotatable member is arranged to rotate about a second axis. A bowstring is attached to the first rotatable member and arranged to bias the first rotatable member in a first rotational direction about the first axis. A power cable is attached to the first rotatable member. A servicing string is arranged for attachment to the first rotatable member and arranged to bias the first rotatable member in a second rotational direction about the first axis.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb, a second limb and a bowstring. The riser comprises a first rail, a second rail and a plurality of connecting members extending between the first rail and the second rail. The riser comprises an accessory cavity comprising an aperture through the first rail. The aperture comprises an asymmetrical shape. In some embodiments, the aperture comprises a first aperture and the accessory cavity comprises a second aperture through the second rail. In some embodiments, the second aperture has the same shape as the first aperture.

Abstract: In some embodiments, crossbow comprises a frame, a bow portion comprising a bowstring, a latch and a trigger. An arrow rest is supported by the frame at a first location. The frame is also arranged to support the arrow rest at a second location. A distance between the latch and the first location is different from a distance between the latch and the second location.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb, a second limb and a bowstring. The riser comprises a first rail, a second rail and a plurality of connecting members extending between the first rail and the second rail. The riser comprises an accessory cavity comprising an aperture through the first rail. The aperture comprises an asymmetrical shape. In some embodiments, the aperture comprises a first aperture and the accessory cavity comprises a second aperture through the second rail. In some embodiments, the second aperture has the same shape as the first aperture.

Abstract: In some embodiments, a shaft testing device comprises a support comprising a non-contact bearing. The support is arranged to support a workpiece such as a shaft. A loading mechanism comprises a non-contact bearing. The loading mechanism is arranged to apply a load to the shaft. In some embodiments, the load is applied orthogonal to a longitudinal axis of the shaft. In some embodiments, a non-contact bearing comprises an air bearing.

Abstract: In some embodiments, a shaft testing device comprises a support comprising a non-contact bearing. The support is arranged to support a workpiece such as a shaft. A loading mechanism comprises a non-contact bearing. The loading mechanism is arranged to apply a load to the shaft. In some embodiments, the load is applied orthogonal to a longitudinal axis of the shaft. In some embodiments, a non-contact bearing comprises an air bearing.

Abstract: In some embodiments, an archery bow comprises a riser comprising a first rail and a second rail. An accessory is supported by the riser. The accessory extends through the first rail and contacts the second rail. A fastener contacts the riser and the accessory. The fastener comprises a central axis that does not intersect the accessory.

Abstract: In some embodiments, an arrow rest comprises a first body portion arranged for attachment to an archery bow and a second body portion attached to the first body portion. The second body portion comprises an arrow support member. The second body portion is moveable with respect to the first body portion along an arcuate path.

Abstract: In some embodiments, an archery bow comprises a riser comprising a cavity and a grip attached to the riser and arranged to cover the cavity. A first limb is supported by the riser and a second limb is supported by the riser. A bowstring extends between the first limb and the second limb. A data device comprises an accelerometer. In some embodiments, the data device is oriented in the cavity and attached to the riser.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb and a second limb. A first rotatable member is arranged to rotate about a first axis and a second rotatable member is arranged to rotate about a second axis. A bowstring is attached to the first rotatable member and arranged to bias the first rotatable member in a first rotational direction about the first axis. A power cable is attached to the first rotatable member. A servicing string is arranged for attachment to the first rotatable member and arranged to bias the first rotatable member in a second rotational direction about the first axis.

Abstract: In some embodiments, a crossbow comprises a stock, a bow portion, a latch, a trigger and a foregrip. In some embodiments, the foregrip is supported by the stock and arranged to move with respect to the stock between a first position and a second position.

Abstract: A system for a smart bow includes an accelerometer, a gyroscope, a user interface, and processing circuitry. The accelerometer is configured to measure acceleration of the smart bow. The gyroscope is configured to measure orientation of the smart bow. The processing circuitry is configured to receive the acceleration and the orientation of the smart bow from the accelerometer and the gyroscope. The processing circuitry is configured to perform an analysis on the acceleration and the orientation of the smart bow to identify an action performed with the smart bow. The processing circuitry is configured to operate the user interface to display a result of the analysis.

Abstract: In some embodiments, an arrow comprises a shaft, a nock and a structural asymmetry orienting a weak bending axis of the arrow.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb, a second limb and a bowstring. The riser comprises a first rail, a second rail and a plurality of connecting members extending between the first rail and the second rail. The riser comprises an accessory cavity comprising an aperture through the first rail. The aperture comprises an asymmetrical shape. In some embodiments, the aperture comprises a first aperture and the accessory cavity comprises a second aperture through the second rail. In some embodiments, the second aperture has the same shape as the first aperture.

Abstract: In some embodiments, an apparatus comprises a body arranged to engage an optical scope. The body comprises a first portion and a second portion moveable with respect to the first portion between a first position and a second position. The first portion comprises a sidewall defining an aperture having a central axis and the second portion comprises a magnet. In the first position, the second portion is arranged to cover the aperture and a radial distance from the central axis to the sidewall is greater than a radial distance from the central axis to the magnet.

Abstract: In some embodiments, a crossbow crank comprises a housing and a shaft rotatable with respect to the housing. A one-way mechanism is arranged to prevent rotation of the shaft in a first rotational direction, but allow rotation in a second direction. A release mechanism is arranged to disengage the one-way mechanism from the shaft. The release mechanism has a first position and a second position, wherein the release mechanism moves along a length of the shaft between the first position and the second position.

Abstract: In some embodiments, an arrow comprises a shaft, a nock and a structural asymmetry orienting a weak bending axis of the arrow.

Abstract: In some embodiments, a bow stand comprises a first body portion comprising a first cavity. A second body portion is moveable with respect to the first body portion. The second body portion comprises a second cavity. A third body portion is moveable with respect to the first body portion and comprises a third cavity. The first cavity, the second cavity and the third cavity form an engagement cavity arranged to engage a frame of an archery bow.

Abstract: In some embodiments, crossbow comprises a frame, a bow portion comprising a bowstring, a latch and a trigger. An arrow rest is supported by the frame at a first location. The frame is also arranged to support the arrow rest at a second location. A distance between the latch and the first location is different from a distance between the latch and the second location.