Granted Patent B2

US 12,460,891 · App. 18/210,744 · Granted Nov 4, 2025

Inventors: Donald Wasilewski (Lake Point, UT); Brandon Vantassell (Lake Point, UT); Cameron Cox (Lake Point, UT); David Barnett (Tarpon Springs, FL)

Assignee: DAVID A. BARNETT + BARNETT OUTDOORS, LLC

F41B5/123F41B5/105

Abstract

Claims (77)

1 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis, the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, a centerline of each of said C 2 -J 1 , C 2 -J 2 , C 2 -J 3 , C 2 -J 4 and C 2 -J 5 segmented cable journals are parallel to each other, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub;

a bow harness including a bow string and a first power cable and a second power cable, the bow string received in the center draw string journals and bow string ends secured to the first and second cams C 1 , C 2 ; and

the first and second power cables receivable in first and second cam cable journals, wherein as the bow string is being drawn from a released configuration to a drawn configuration, the bow string unwinds from C 1 -J 3 and C 2 -J 3 center draw string journals as simultaneously the first and second power cables wrap onto C 1 -J 2 /J 4 and C 2 -J 2 /J 4 segmented cable journals then exit said segmented cable journals the first and second power cables are received by and wrap onto C 1 -J 1 /J 5 and C 2 -J 1 /J 5 segmented cable journals.

2 . The crossbow of claim 1 , wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable are fixed on a second side of the longitudinal centerline of the crossbow.

3 . The crossbow of claim 1 , wherein:

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

4 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis, the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, each journal have a plane of rotation and all journals parallel to each other, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub; and

a bow harness including a bow string and a first power cable and a second power cable, the bow string received in the center draw string journals and bow string ends secured to the first and second cams C 1 , C 2 , the first and second power cables receivable in first and second cam cable journals, wherein when the bow string is in a drawn configuration, the center draw string is unwound from C 1 -J 3 and C 2 -J 3 center draw cable journals, the power cables wrap C 1 -J 2 /J 4 and C 2 -J 2 /J 4 segmented cable journals, and at least partially wrap C 1 -J 1 /J 5 and C 2 -J 1 /J 5 segmented cable journals.

5 . The crossbow of claim 4 , wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable are fixed on a second side of the longitudinal centerline of the crossbow.

6 . The crossbow of claim 4 , wherein:

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

7 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis, the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, each journal have a plane of rotation and all journals parallel to each other, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub; and

a bow harness including a bow string and a first power cable and a second power cable;

the bow string received in the center draw string journals and bow string ends secured to the first and second cams C 1 , C 2 ; and

the first and second power cables receivable in the first and second cam cable journals, wherein when the bow string is in a released configuration, the bow string is wound in the C 1 -J 3 and C 2 -J 3 center draw string journals, and the first and second power cables are adjacent C 1 -J 2 /J 4 and C 2 -J 2 /J 4 segmented cable journals.

8 . The crossbow of claim 7 , wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable are fixed on a second side of the longitudinal centerline of the crossbow.

9 . The crossbow of claim 7 wherein

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

10 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis, the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, each journal have a plane of rotation and all journals parallel to each other, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub; and

a bow harness including a bow string and a first power cable and a second power cable, the bow string received in the center draw string journals and bow string ends secured to the first and second cams C 1 , C 2 , the first and second power cables receivable in the first and second cam cable journals, wherein as the bow string is being drawn from a released configuration to a drawn configuration, the bow string unwinds from C 1 -J 3 and C 2 -J 3 center draw string journals as simultaneously the power cables wrap onto C 1 -J 2 and C 2 -J 2 and C 1 -J 4 and C 2 -J 4 segmented cable journals then exit said journals, the first and second power cables are received by and wrap onto C 1 -J 1 , C 2 -J 1 , and C 1 -J 1 and C 2 -J 1 segmented cable journals.

11 . The crossbow of claim 10 wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable are fixed on a second side of the longitudinal centerline of the crossbow.

12 . The crossbow of claim 10 , wherein:

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

13 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis, the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, each journal have a plane of rotation and all journals parallel to each other, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub; and

a bow harness including a bow string and a first power cable and a second power cable, the bow string received in the center draw string journals and bow string ends secured to the first and second cams C 1 , C 2 , the power cables receivable in J 2 /J 1 and J 4 /J 5 cam cable journals, wherein when a bow is in a drawn configuration, the draw string is unwound from C 1 -J 3 and C 2 -J 3 center draw string journals, the power cables wrap C 1 -J 2 /J 4 and C 2 -J 2 /J 4 segmented cable journals, and at least partially wrap C 1 -J 1 /J 5 and C 2 -J 1 /J 5 segmented cable journals.

14 . The crossbow of claim 13 , wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable are fixed on a second side of the longitudinal centerline of the crossbow.

15 . The crossbow of claim 13 , wherein:

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

16 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis, the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, each journal have a plane of rotation and all journals parallel to each other, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub; and

a bow harness including a bow string and a first power cable and a second power cable;

the bow string received in the center draw string journals and bow string ends secured to the first and second cams;

the power cables receivable in J 2 /J 1 and J 4 /J 5 cam cable journals, wherein when the bow string is in a released configuration, the bow string is wound in the C 1 -J 3 and C 2 -J 3 center draw string journals, and the power cables are adjacent C 1 -J 2 /J 4 and C 2 -J 2 /J 4 segmented cable journals.

17 . The crossbow of claim 16 , wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable are fixed on a second side of the longitudinal centerline of the crossbow.

18 . The crossbow of claim 16 , wherein:

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

19 . A crossbow comprising:

first and second flexible bow limbs coupled to a riser;

a first cam C 1 coupled to the first bow limb and rotatable around a first axis, the first cam C 1 comprising a center draw string journal C 1 -J 3 , a first upper C 1 -J 2 and a second upper C 1 -J 1 segmented cable journals and a first lower C 1 -J 4 and a second lower C 1 -J 5 segmented cable journals, a centerline of each of said C 1 -J 1 , C 1 -J 2 , C 1 -J 3 , C 1 -J 4 and C 1 -J 5 segmented cable journals are parallel to each other;

a second cam C 2 coupled to the second bow limb and rotatable around a second axis; the second cam C 2 comprising a center draw string journal C 2 -J 3 , a first upper C 2 -J 2 and a second upper C 2 -J 1 segmented cable journals and a first lower C 2 -J 4 and a second lower C 2 -J 5 segmented cable journals, a centerline of each of said C 2 -J 1 , C 2 -J 2 , C 2 -J 3 , C 2 -J 4 and C 2 -J 5 segmented cable journals are parallel to each other; and

a bow harness including a bow string and a cable; the bow string received in the center draw string journals and bow string ends secured to the first and second cams C 1 , C 2 , a first power cable and a second power cable receivable in first and second cam segmented cable journals, wherein as the bow string is being drawn from a released configuration to a drawn configuration, the bow string unwinds from C 1 -J 3 and C 2 -J 3 center draw string journals as simultaneously power cable segments wrap onto C 1 -J 2 /J 4 and C 2 -J 2 /J 4 segmented cable journals then exit said journals, the first and a second power cables are received by and wrap onto C 1 -J 1 /J 5 and C 2 -J 1 /J 5 segmented cable journals, wherein C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub.

20 . The crossbow of claim 19 , wherein:

first and second ends of the first power cable are fixed on a first side of a longitudinal centerline of the crossbow and first and second ends of the second power cable is are fixed on a second side of the longitudinal centerline of the crossbow.

21 . The crossbow of claim 19 , wherein:

the first and second cams C 1 , C 2 having one of an integrated ramp adjacent a transition zone or a coupled-component ramp adjacent the transition zone.

22 . The crossbow of claim 19 wherein:

a routing path of each one of the first and second power cables may be described as: a first end anchored on a first side of a longitudinal centerline of the crossbow; a segment of each one of the first and second power cables passes through the first cam C 1 ; a span of each one of the first and second power cables crosses the centerline of the crossbow to the second cam C 2 ; a segment of each one of the first and second power cables goes through the second cam C 2 ; a second end anchored on a second side of the longitudinal centerline of the crossbow.

23 . A cam for a projectile launching device, comprising:

a cam body, a cam axis, the cam body having five stacked planar journals and two transition zones, first and second cable journals C 1 -J 1 , C 1 -J 2 are located above a center string journal C 1 -J 3 , and fourth and fifth cable journals C 1 -J 4 , C 1 -J 5 are located below the center string journal, wherein the fourth and fifth cable journals C 1 -J 4 , C 1 -J 5 are a mirror image of the first and second cable journals C 1 -J 1 , C 1 -J 2 , the center string journal C 1 -J 3 is capable of receiving a bowstring;

the cable journal C 1 -J 4 is on a plane below the center string journal C 1 -J 3 , and the fifth cable journal C 1 -J 5 is on a plane below the fourth cable journal C 1 -J 4 , fourth and fifth cable journals C 1 -J 4 and C 1 -J 5 are a mirror image of first and second cable journals C 1 -J 2 and C 1 -J 1 ; and

fourth cable journal J 4 may extend around a perimeter of a first cable second cable-path with at least 20 degrees of rotation and no greater than two hundred degrees of rotation;

a C 1 transition zone two is adjacent a terminal end of fourth cable journal C 1 -J 4 , and may extend around a perimeter of the first cable second cable-path with at least 45 degrees, and no greater than two hundred degrees of rotation;

a terminal end of the C 1 transition zone two is adjacent a leading edge of the fifth cable journal C 1 -J 5 ; and

C 1 -J 5 may extend around the perimeter of the first cable second cable-path as little as twenty degrees but no more than two hundred degrees of rotation, wherein cable journals C 1 -J 1 , C 1 -J 2 , C 1 -J 4 , C 1 -J 5 are capable of receiving a power cable, C 1 and C 2 J 2 and C 1 and C 2 J 4 segmented cable journals and C 1 and C 2 J 1 and C 1 and C 2 J 5 segmented cable journals are non-continuous around a circumference of a first cam hub and a second cam hub.

Assignments (2)

Continuity (1)

References Cited (35)