Automatic firearms with external motor
US4167888A · kind A · utility
5Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1977 |
| Grant date | Sep 18, 1979 |
| Priority date | — |
| Expiry date | Nov 25, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A7/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This disclosure relates to an automatic firearms having a rotatable drum with helical grooves therein so arranged as to cause a follower guided by said grooves to reciprocate at a speed proportional to the rotational speed of the drum. The reciprocation of the follower causes the breech mechanism to reciprocate between loading and firing positions. The drum is driven by means independent of the propulsion energy of the projectiles fired, and therefore, may be operated at varying speeds by means such as an electric motor or even by hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.