Helical broadhead
US8313398B2 · kind B2 · utility
9Cited by
6References
6Claims
0Family size
Inventor
Key dates
| Filing date | Sep 16, 2008 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Oct 18, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B6/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A helical broadhead for an archery arrow may include a tapered ferrule having a tip end and an arrow end, and at least two helical blades which extend from the tip end to and towards the arrow end. The at least two helical blades may continuously helically curve from the tip end to the back side of the helical blades, and the helical blades may include a cutting edge. The broadhead may include a threaded shaft, and the helical blades may be a constant thickness. The helical blades may include a tapered cross-section, and the cutting edges may form a tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.