Shock-absorbing bolt for a crossbow
US9194672B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Aug 25, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B6/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shock-absorbing bolt for a crossbow comprises a shaft, a forward flange, and a shock-absorbing mechanism coupled to the shaft or the forward flange. The forward flange is coupled to a forward end of the shaft and has a forward surface with a transverse area that is greater than about three times larger than a transverse area of the shaft. A tapered tip can be attached to and protrude from the forward surface of the forward flange. The shock-absorbing mechanism is arranged so that, upon acceleration or deceleration of the bolt, kinetic energy of the bolt is dissipated by viscoelastic, viscous, or frictional forces within the bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.