Archery broadhead air flow interrupter

Abstract

An archery broadhead air flow interrupter or an attachment for a broadhead configured to fit over the point of the broadhead and prior to the primary cutting blades; the air flow interrupter creating a turbulent low pressure zone around the cutting blades, preventing broadhead planing, and improving the accuracy of the broadhead archery point.

Claims

1. An archery broadhead air flow interrupter comprising, a broadhead, comprising, a ferrule point, a plurality of cutting blades, an air flow interrupter, comprising, a point, a body portion formed as conical taper extending from the point to a base, a skirt portion formed at an edge of the base, a central opening formed in the base, the central opening configured to fit over the ferrule point, and, the body portion covering the ferrule point without covering the cutting blades of the broadhead.

2. The air flow interrupter of claim 1 wherein the conical taper is substantially planer.

3. The air flow interrupter of claim 1 wherein the conical taper has a curved convex portion proximate the base forming a flared skirt.

4. The air flow interrupter of claim 1 wherein a plurality of scoops are formed in a radial pattern in the conical taper.

5. The air flow interrupter of claim 4 wherein the plurality of scoops is one of, 2, 3, and 4.

6. The air flow interrupter of claim 4 wherein the plurality of scoops equals a number of blades affixed to a reciprocal broadhead.

7. The air flow interrupter of claim 1 wherein the conical taper includes a bulbous contour proximate a mid-point between the point and the base, a convex curved portion formed between the bulbous portion and the base, a flared skirt formed at the base, and, the skirt including a reverse air scoop.

8. The air flow interrupter of claim 1 comprising one of a plastic and silicon.

9. The air flow interrupter of claim 1 comprising a biodegradable material one of, corn starch, potato starch, soybean protein, and cellulose.

10. An archery broadhead air flow interrupter comprising, a broadhead, comprising, a ferrule point, a plurality of cutting blades, an air flow interrupter, comprising, a body portion formed as a washer, the washer having, a tapered side, a lower skirt portion, and, a central hole configured to fit over a ferrule point of a broadhead, the washer fitting over the ferrule point without covering the cutting blades of the broadhead, and, leaving the ferrule point exposed.

11. The air flow interrupter of claim 10 wherein a plurality of retainer flaps are formed in a radial pattern extending into the central hole.

12. The air flow interrupter of claim 10 configured to fit into a groove formed in a broadhead ferrule.

13. The air flow interrupter of claim 10 wherein the interrupter is reusable.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) The following description of the embodiments can be understood in light of the Figures, which illustrate specific aspects of the embodiments and are part of the specification. Together with the following description, the Figures demonstrate and explain the principles of the embodiments.

(2) FIG. 1A-1B a first embodiment of the present invention or air flow interrupter,

(3) FIG. 2A-2B an embodiment of an air flow interrupter having an extended convex body portion,

(4) FIG. 3A-3B an embodiment of an air flow interrupter having an extended convex body portion and a plurality of scoops formed in the body,

(5) FIG. 4A-4B an embodiment of an air flow interrupter formed as a washer, and,

(6) FIG. 5 is a section view of an embodiment having curved body surface and reverse scoop formed at the skirt.

DETAILED DESCRIPTION OF THE DRAWINGS

(7) The following description of the embodiments can be understood in light of the Figures which illustrate specific aspects of the embodiments and are part of the specification. Together with the following description, the Figures demonstrate and explain the principles of the embodiments. In the Figures the physical dimensions of the embodiment may be exaggerated for clarity. The same reference numerals or word descriptions in different drawings represent the same element, and thus their descriptions may be omitted.

(8) Definitions

(9) Broadheadan archery point having a triangular profile used primarily for hunting; the archery point having a point end and at least two primary blades that taper open or wider at the base end proximate the arrow shaft.

(10) Bladea tapered planer blade extending away perpendicular from the ferrule, the blade having at least the leading edge sharpened with a single bevel or double bevel grind. The blade may be a solid planer surface or may include a window cutting away a portion of the blade. A secondary blade that extends perpendicular to a primary blade through the window is included as a broadhead blade.

(11) Ferrulesupport structure for the broadhead blade, the ferrule may include a threaded shaft configured to be screwed or twisted into a ferrule insert or the ferrule may have a conical receiver for traditional arrows.

(12) These definitions are for general understanding of the application of the present invention and should not be construed as limitations on the application or to replace accepted definitions in the archery arts.

(13) FIGS. 1A through 1B is a first embodiment of the present invention or archery broadhead airflow interrupter 100, the airflow interrupter 100 including a point 110, tapered sides 120 and skirt 130. The airflow interrupter 100 having a tapered central hole 150 in the base 140 extending from the base 140 toward the point, the central hole 150 configured to fit over the ferrule point 220 and up to the leading edge of the blades 210 of the broadhead 200. The central hole 150 sized to securely engage the point 220 and remain in place through the jostling and bumps expected during transportation in the field and during flight after the arrow is fired from a high velocity bow.

(14) FIGS. 2A through 2B is another embodiment of the airflow interrupter 100 including a point 110 and tapered sides 120 including a convex portion 121 extending from the side taper 120 to the skirt 130. The convex portion 121 configured to create a ramp effect and further displace airflow around the broadhead blades 210.

(15) The embodiment disclosed in FIGS. 3A through 3B shows the airflow interrupter 100 including a plurality of indents or scallops 160 formed in a radial pattern on the tapered sides 120, the scallops 160 have a narrow point indentation 161 which broadens and extends down into a base indentation 162 designed to provide maximum air flow interruption. The scallops 160 may be 2, 3, 4 or any number allowed on the surface of the tapered sides 120 but the scallops 160 may be the same number as the number of primary blades 210 on the broadhead 200 and the scallops 160 can be aligned directly in line, or in the same vertical plane, with the broadhead blades 210. The scallops 160 may also act as a relief point or parting line allowing the airflow interrupter 100 to easily fracture and separate from the ferrule point 220.

(16) FIGS. 4A through 4B is yet another embodiment of the present invention or archery broadhead airflow interrupter 100. The airflow interrupter 100 formed substantially as a washer having a truncated side 120 extending down to a skirt portion 130. A central hole 150 configured to fit over the ferrule point 220. In one embodiment, the central hole 150 including a plurality of retainer flaps 151 configured to more securely hold the airflow interrupter 100 onto the ferrule point 220.

(17) FIG. 5 is a vertical cross-section view of yet another embodiment of the airflow interrupter 100 of the present invention. The airflow interrupter 100 including a point 110, side portion 120 and skirt 130; the side portion including a bulbous shoulder 122, a convex recess 123 and a reverse scoop 124 formed just prior to the skirt 130. The bulbous shoulder 122 formed to direct air flow over the surface and cause the air to impact directly at the reverse scoop 124. Central hole 150 configured to securely fit over the ferrule point 220 of a broadhead 200.

(18) It is to be understood that the above mentioned arrangements are only illustrative of the application of the principles of the present disclosure. Numerous modifications or alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present disclosure and the appended claims are intended to cover such modifications and arrangements. Thus, while the present disclosure has been shown in the drawings and described above with particularity and detail, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made without departing from the principles and concepts set forth herein.