US 12,031,807 B2
Mechanical broadhead with adjustable expansion and related methods
Kristopher Jon Soderstrom, Raleigh, NC (US); and Nicholas Demetrious Paliouras, Chapel Hill, NC (US)
Filed by Kristopher Jon Soderstrom, Raleigh, NC (US); and Nicholas Demetrious Paliouras, Chapel Hill, NC (US)
Filed on Jan. 17, 2023, as Appl. No. 18/097,692.
Claims priority of provisional application 63/303,727, filed on Jan. 27, 2022.
Prior Publication US 2023/0235997 A1, Jul. 27, 2023
Int. Cl. F42B 6/08 (2006.01)
CPC F42B 6/08 (2013.01) 11 Claims
OG exemplary drawing
 
1. A mechanical broadhead comprising:
a body that defines an interior space;
a cutting blade that is attached to the interior space of the body, comprising a first blade and a second blade, wherein the first and second blades rotate about an axis and extend in substantially opposing directions;
a sharp penetrating tip positioned at a first end of the body;
a threaded member positioned at a second end of the body that connects the mechanical broadhead to an arrow, wherein the threaded member comprises a plurality of internal threads;
an adjustment mechanism that enables an impact cap positioned at a contact location of a protruding member on a base of the adjustment mechanism to be changed, and wherein the impact cap controls how wide the cutting blade expands in the second position;
wherein the mechanical broadhead is rotatable between a first position wherein the cutting blade is unexpanded within the interior space and a second position where the cutting blade is expanded and exterior to the interior space upon contact with a target.
 
9. A method of maximizing the effectiveness of a mechanical broadhead, the method comprising:
adjusting blade expansion of a mechanical broadhead based on a bow draw weight, distance to a target, and size of the target, wherein the mechanical broadhead is defined as:
a body that defines an interior space;
a cutting blade that is attached to the interior space of the body and comprising a first blade and a second blade, wherein the first and second blades rotate around an axis and extend in substantially opposing directions;
a sharp penetrating tip positioned at a first end of the body;
a base comprising a threaded member positioned at a second end of the body that connects the mechanical broadhead to an arrow; and
an adjustment mechanism that enables an impact cap positioned at a contact location of a protruding member on a base of the adjustment mechanism to be changed, and wherein the impact cap controls how wide the cutting blade expands in the second position;
wherein the mechanical broadhead is rotatable between a first position wherein the cutting blade is unexpanded within the interior space and a second position where the cutting blade is expanded external to the interior space upon contact with a target; and
delaying expanding of the first and second blades in the second position until penetrating the target, expanding the first and second blades quickly after penetrating the target, adjusting the amount of expansion of the first and second blades to thereby maximize the energy from an arrow to which the mechanical broadhead is attached.