Vaneless arrow shaft
US5971875A · kind A · utility
26Cited by
5References
2Claims
0Family size
Inventor
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B12/362
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
With the use of a smaller tube which fits inside the nock end of a arrow shaft and the smaller tube having molded in it spiraled grooves which acts upon dimples that are molded in the arrow shaft body and when the bowstring drives the smaller tube into the arrow shaft causeing the whole arrow shaft to spinn, the results of which allows the arrow shaft to oscillate less, fly stright without vanes, and faster with more peneration and will enter a close range target stright.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.