Sight with reduced friction line of sight adjustment
US4286388A · kind A · utility
14Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1977 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G1/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A line of sight adjustment mechanism for an optical gun sight which includes windage and elevation screws which bear against an internal component of the sight that defines the line of sight of the sight. A spring biases the internal component against the windage and elevation screws. Hardened steel balls are set into the internal component and affixed thereto at approximate positions to provide point contact between the internal component and the windage and elevation screws, and between the internal component and the spring. Adjustment friction is thus reduced with a resultant reduction in tracking error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.