Arrow broadhead
First Claim
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1. An improved broadhead arrowhead for affixation to an arrow shaft comprising:
- (a.) a forward portion comprising a point;
(b.) a rearward portion for engaging the arrow shaft;
(c.) a curved blade intermediate said forward and rearward portions, wherein the curvature of said curved blade promotes a twisting aspect of said broadhead with regard to a direction of flight;
(d.) said curved blade increasing in width as measured from the leading edge thereof to the central axis of said broadhead.
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Abstract
An improved broadhead arrowhead is disclosed including spiral-shaped, curving or twisting, blades of increasing width along a leading edge thereof, and an insert including a bearing element which allows for broadhead rotation independent of the arrow shaft about the longitudinal axis of the arrow shaft during flight. The curved blades and bearing element of the present invention allow the broadhead to continue rotating after contacting the target.
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Citations
33 Claims
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1. An improved broadhead arrowhead for affixation to an arrow shaft comprising:
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(a.) a forward portion comprising a point;
(b.) a rearward portion for engaging the arrow shaft;
(c.) a curved blade intermediate said forward and rearward portions, wherein the curvature of said curved blade promotes a twisting aspect of said broadhead with regard to a direction of flight;
(d.) said curved blade increasing in width as measured from the leading edge thereof to the central axis of said broadhead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An improved arrow comprising:
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(a.) a broadhead arrowhead comprising a forward portion carrying a point, a rearward portion for engaging a shaft of said arrow, and a blade intermediate said forward and rearward portions; and
,(b.) a bearing insert and retaining cap for accommodating independent rotation of said broadhead arrowhead with regard to said arrow shaft. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A broadhead arrowhead, comprising:
a pitch of approximately 11.3.
- 22. The broadhead arrowhead of claim 21, wherein said pitch corresponds to said broadhead arrowhead having a linear translation or displacement of approximately 11.3 inches upon one full rotation thereof.
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22-1. An apparatus for independently rotating an arrowhead with regard to an arrow shaft, said apparatus comprising:
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a bearing insert; and
,a retaining cap.
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30. A method of independently rotating an arrowhead with regard to an arrow shaft, said method comprising the steps of:
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a. obtaining a bearing insert;
b. placing said bearing insert into said arrow shaft;
c. applying an adhesive to an exterior end of said arrow shaft, proximal said bearing insert;
d. placing a retaining cap over said exterior end of said arrow shaft, thereby establishing a bearing surface between said retaining cap and said bearing insert;
e. securing said arrowhead to said bearing insert; and
,f. allowing said arrowhead to independently rotate with regard to said arrow shaft.
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31. An improved broadhead arrowhead for affixation to an arrow shaft, comprising:
a blade comprising a cut-out portion, said cut-out portion comprising a downwardly tapered area or wind-deflector formed at the base thereof.
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32. An improved broadhead arrowhead assembly for affixation to an arrow shaft, comprising:
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a blade comprising a cut-out portion, said cut-out portion comprising a downwardly tapered wind-deflector formed at the base thereof;
a bearing insert; and
,a retaining cap.
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33. An improved broadhead arrowhead assembly for affixation to an arrow shaft, comprising:
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a blade comprising a cut-out portion, said cut-out portion comprising a downwardly tapered wind-deflector formed at the base thereof;
a bearing insert; and
,a retaining cap, wherein said broadhead comprises pitch of approximately 11.3.
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Specification