Adjustable shotgun rib
US4878308A · kind A · utility
12Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1989 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Apr 17, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G1/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A sighting rib for a shotgun is mounted atop a barrel by means of structure carried at the muzzle and breach ends, respectively. The front mounting permits longitudinal movement but fixes the vertical position of the rib at one of a plurality of selected locations. The breach mounting provides vertical adjustment but restrains longitudinal movement of the rear end of the rib. The attitude of the sighting plane is adjustable through the mountings to fix the point of impact with respect to the point of aim at a selected distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.