US 12,264,904 B2
Variable cutting diameter arrowhead
Joshua Bowmar, Ankeny, IA (US); and David Houser, Creekside, PA (US)
Assigned to Bowmar Archery LLC, Des Moines, IA (US)
Filed by Bowmar Archery LLC, Des Moines, IA (US)
Filed on Aug. 9, 2024, as Appl. No. 18/799,479.
Claims priority of provisional application 63/531,968, filed on Aug. 10, 2023.
Prior Publication US 2025/0052548 A1, Feb. 13, 2025
Int. Cl. F42B 6/08 (2006.01)
CPC F42B 6/08 (2013.01) 14 Claims
OG exemplary drawing
 
1. An arrowhead, comprising:
a ferrule that includes a first end, a second end, and a ferrule body extending between the first end and the second end that defines a longitudinal axis, the ferrule body further including a blade pivot hole that defines a blade pivot axis and a ferrule cavity, wherein the blade pivot axis is generally perpendicular to the longitudinal axis;
a resilient member and a blade locking member located within the ferrule cavity, wherein the blade locking member is connected to an upper portion the resilient member;
a first blade having a first cutting portion, wherein the first blade is pivotally attached to the ferrule at the blade pivot axis, wherein the first blade includes a first blade pivot aperture, a first blade locking geometry, and a first rear surface opposite the first cutting portion, wherein the first blade locking geometry includes a convex curved surface;
a second blade having a second cutting portion, wherein the second blade is pivotally attached to the ferrule at the blade pivot axis, wherein the second blade includes a second blade pivot aperture, and a second rear surface opposite the second cutting portion;
wherein the first blade and the second blade are pivotally attached to the ferrule along a blade pivot pin that extends through the first blade pivot aperture, the second blade pivot aperture, and the blade pivot hole;
wherein the first blade and the second blade have a stowed position and a deployed position, wherein the stowed position is defined by a portion of the first rear surface contacting an outer surface of the ferrule;
wherein the blade locking member comprises a concave surface that contacts the first blade locking geometry when the arrowhead is in the stowed position; and
wherein the deployed position is defined by the first rear surface being free of contact with the outer surface of the ferrule.
 
12. An arrowhead, comprising:
a ferrule that includes a first end, a second end, and a ferrule body extending between the first end and the second end that defines a longitudinal axis;
a first blade having a first cutting portion; wherein the first blade is pivotally attached to the ferrule at a blade pivot axis;
wherein the ferrule includes a ferrule cavity that receives a resilient member, wherein the resilient member has a first end and a second end opposite the first end, wherein the first end has a first diameter and the second end has a second diameter, and wherein the first diameter is greater than the second diameter; and
wherein the first blade has a stowed position and a deployed position; and
wherein the resilient member provides a force to deploy the first blade from the stowed position to the deployed position, and wherein a first distance between a distal end of the first blade and an outer surface of the ferrule is greater in the deployed position than in the stowed position.