Broadhead arrow adapter

This application claims the benefit of U.S. Provisional Application No. 61/015,300, filed on Dec. 20, 2007. The entire disclosure of the above application is incorporated herein by reference.

The present invention relates generally to an arrow weight-and-length booster and, more specifically, it relates to an Archery Manufacturers & Merchants Organization (AMO) standards-based, arrow-assembly, weight-and-length enhancer for archers and/or bowhunters, which provides a fully compatible, standards-based way to increase the length and/or weight of the front of the arrow assembly by simply unscrewing the existing arrowhead from the insert of the arrow and screwing this booster insert between the two components. By having internal threads on the device located directly within the outer shank area of the insert, the strength is increased due to a decrease in leverage, and the overall length of the assembly is kept to a minimum.

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

It can be appreciated that arrow weight-and-length altering techniques have been in use for years. Typically these are comprised of specialized, as well as proprietary, assemblies and/or components to alter length and/or weight as seen in the following patents: U.S. Pat. No. 4,050,696, issued to Troncoso; U.S. Pat. No. 4,141,554, issued to Sherwin; U.S. Pat. No. 4,405,133, issued to Cartwright; U.S. Pat. No. 4,533,146, issued to Schaar; U.S. Pat. No. 4,874,180, issued to Fingerson; U.S. Pat. No. 4,944,520, issued to Fingerson; U.S. Pat. No. 5,269,534, issued to Saunders; U.S. Pat. No. 5,269,534, issued to Rangel; U.S. Pat. No. 5,611,542, issued to Saunders; U.S. Pat. No. 5,902,199, issued to Adams; U.S. Pat. No. 6,027,421, issued to Adams; U.S. Pat. No. 6,554,725, issued to Schaar; U.S. Pat. No. 6,558,280, issued to Kuhn; U.S. Pat. No. 6,623,385, issued to Cole; and U.S. Pat. Nos. 6,932,728, 7,004,859, 7,077,770, and 7,115,055, issued to Palomaki.

The main problem with conventional arrow weight-and-length boosters is they do not provide a standards-based—screw directly in-between the existing insert and the arrowhead—means of adding weight or length to the front of an arrow shaft fitted with a standard AMO specification insert. AMO defined these standards in 1986 (now part of the ATA (Archery Trade Association)).

A further disadvantage with conventional arrow weight-and-length boosters is they do not provide a standards based—screw directly in-between the existing insert and the arrowhead—means of transitioning different diameters of arrowheads, broadheads, and target tip base diameters to match varying arrow shaft diameters via a tapering design, which would not only increase downrange kinetic energy, but also reduce parasitic aerodynamic drag.

A further problem with conventional arrow weight-and-length boosters is they cannot be stacked on top of one another as well as they require special proprietary non-standard attachments and/or internal inserts that may or may not require special arrow assemblies and/or disassembly of standard arrows to add weight and/or length.

While these devices may be suitable for the particular purpose to which they address, they are not suitable for giving the archer and/or the bowhunter a fully compatible standards-based way to increase the length and/or the weight of the front of their arrow assembly by simply unscrewing their existing arrowhead from the arrow\'s insert and screwing the device of the present disclosure between the two. By having the internal threads of the device located directly within the outer shank area of the insert, the strength is increased due to a decrease in leverage, and the overall length of the assembly is kept to a minimum.

In these respects, the AMO standards-based arrow assembly weight-and-length enhancer according to the present disclosure substantially departs from the conventional concepts and designs of the prior art and, in doing so, provides an apparatus primarily developed for the purpose of giving the archer and/or the bowhunter a fully compatible standards-based way to increase the length and/or the weight of the front of their arrow assemblies.

In view of the foregoing disadvantages inherent in the known prior art regarding arrow weight-and-length boosters, the present disclosure provides a new AMO standards-based arrow assembly weight and/or length enhancer construction wherein the same can be utilized for giving the archer and/or the bowhunter a fully compatible standards-based way to increase the length and/or the weight of the front of their arrow assembly by simply unscrewing their existing arrowhead from the arrow\'s insert and screwing the enhancer of the present disclosure between the two. By having the internal threads of the device located directly within the outer shank area of the insert, the strength is increased due to a decrease in leverage, and the overall length of the assembly is kept to a minimum.

The general purpose of the enhancer of the present disclosure, which will be described subsequently in greater detail, is to provide a new AMO standards-based arrow assembly weight-and-length enhancer that has many of the advantages of the arrow weight-and-length boosters mentioned heretofore and many novel features that result in a new AMO standards-based arrow assembly weight-and-length enhancer which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art arrow weight-and-length boosters, either alone or in any combination thereof.

To attain this, the enhancer of the present disclosure generally comprises a single, one-piece machined part. A cylindrical or tapered cylindrical element has a shank cavity followed by internal 8-32 threads on one end and external 8-32 threads on the other. The outer surface may or may not have radial grooves cut into it.

There has thus been outlined, rather broadly, the more important features of the enhancer of the present disclosure in order that the detailed description thereof may be better understood and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter.

In this respect, before explaining at least one embodiment of the enhancer of the present disclosure in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and to the arrangement of the components set forth in the following description or illustrated in the drawings. The disclosure is capable of other embodiments and of being practiced and carried out in various ways. It is also to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting.

A primary object of the enhancer of the present disclosure is to provide an AMO standards-based arrow assembly weight-and-length enhancer that will overcome the shortcomings of the prior art devices.

Another object of the enhancer of the present disclosure is to provide an AMO standards-based arrow assembly weight-and-length enhancer for giving the archer and/or the bowhunter a fully compatible standards-based way to increase the length and/or the weight of the front of their arrow assembly by simply unscrewing their existing arrowhead from the arrow\'s insert and screwing the enhancer of the present disclosure between the two. By having the internal threads of the device located directly within the outer shank area of the insert, the strength is increased due to a decrease in leverage, and the overall length of the assembly is kept to a minimum.

Another object of the enhancer of the present disclosure is to provide an AMO standards-based arrow assembly weight-and-length enhancer that adds a precise amount of weight when being screwed into an AMO standard compliant insert with an arrow assembly without having to modify the existing arrow assembly.