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US 2025/0052548 A1Published application
Variable Cutting Diameter Arrowhead
AssigneeBowmar Archery LLC
InventorsJoshua Bowmar, David Houser
Life of this patent
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Abstract
A variable cutting diameter arrowhead includes a first blade, a second blade, and a ferrule, where the first blade and the second blade have a stowed position and a deployed position. The first blade and the second blade may be pivotally attached to the ferrule. In addition, a resilient member may be within a ferrule cavity, where the resilient member applies a force to a blade locking member that engages the first blade and the second blade to retain the blades in a stowed position. When the blades are in a deployed position, the distance between a distal end of the first blade and an outer surface of the ferrule is greater than the distance between the distal end of the first blade and the outer surface of the ferrule is in the stowed position.
Claims20
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.
6 more elements
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.
5 more elements
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 first resilient member and a second resilient member, wherein the second resilient member has a nested configuration with the first resilient member such that the first resilient member surrounds a portion of the second resilient member;
- and
- wherein the first blade has a stowed position and a deployed position;
- and
- wherein the first resilient member and second resilient member provide 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 than a second distance between the distal end of the first blade and the outer surface of the ferrule when the first blade is in the deployed position than in the stowed position.
4 more elements
Dependencies are inferred from the claim text.