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US 7,410,434 B2Granted
Archery broadhead with replaceable blades
AssigneeLiberty Research Co.
InventorDerrick Perkins, Sr.
Life of this patent
Estimating the term…
Abstract
A broadhead includes a ferrule for mounting an arrowshaft, the ferrule having a locking portion. At least two blades are mounted on the ferrule (three are used in the preferred embodiment), the blades being coupled to the ferrule in their center portions by notches that mate with the locking portion of the ferrule. A locking nut is mounted on a rear portion of the ferrule for holding the three blades in place on the ferrule when the locking nut is tightened.
Claims18
A broadhead ferrule, comprising:
- a body portion with at least two slots formed at least partially therein along a longitudinal axis thereof to receive blades, wherein the blades have notches located at about their mid-section;
- and
- a locking portion having a flange that engages the blade notches upon assembly of the blades with the ferrule;
- wherein the locking portion secures the blades when a force is applied to a rear edge of the blades.
1 more element
A method of making a broadhead ferrule, comprising:
- forming a body portion with at least two slots formed at least partially therein along a longitudinal axis thereof to receive blades, wherein the blades have notches located at about their mid-section;
- and
- forming a locking portion with a flange to engage the blade notches upon assembly of the blades with the ferrule;
- whereby the blades are secured at the locking portion when a force is applied to a rear edge of the blades.
1 more element
Dependencies are inferred from the claim text.