Arrow insert
US4943067A · kind A · utility
Inventor
Key dates
| Filing date | Oct 16, 1985 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Oct 16, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/1616
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An arrow insert dimensioned and configured for engagement in a hollow arrow shaft having a cylindrically shaped wall of a predetermined inner and outer diameter disposed about a longitudinal axis. The insert includes a cylindrical insert body of a first diameter adapted to be disposed within one end of the arrow shaft. An enlarged shoulder on one end of the insert body is provided for preventing the insert body from sliding too far into the arrow shaft. A pair of annular alignment rings having outer diameters slightly larger than the inside diameter of the arrow shaft are disposed in a spaced relationship with respect to each other on the exterior of the cylindrical insert body for the purpose of insuring that the insert body will be disposed within the arrow shaft so that the longitudinal axis thereof is in alignment with the longitudinal axis of the arrow shaft, whether or not the end of the arrow shaft is cut off straight, has metal burrs thereon or whether the shoulder or alignment flange is properly seated against the end of the arrow shaft. A glue trap is provided between the annular alignment rings, the insert body and an inner surface of the arrow shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.