Increased capacity magazine for firearm
US4905395A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1989 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Feb 6, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A9/72
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An increased capacity magazine for a firearm, such as a pump shotgun, wherein the shotgun has mounted under the barrel thereof a cylindrical housing, the housing having assembled therein a rotating mechanism including plurality of shell retaining tubes in contiguous lengthwise relation, assembled about, and fixed to, a pivot shaft. The housing includes a center tubular housing and forward and rear housings attached to the ends of the center housing. The rear housing has an opening in alignment with the loading port of the shotgun. The forward housing includes a rotation spring member which, upon emptying of the shells from a shell tube, automatically enables rotation of the tubes within the housing for positioning the next tube in alignment with the loading port. Each tube has a spring member therein for urging against a follower, which in turn urges shells within the tube toward the rear housing. An indexing mechanism is provided for indexing each shell tube, and includes a rotation latch pivotally mounted on the rear housing for coaction with a follower arm of the follower. The shotgun is loaded through the shotgun loading port, and after a shell tube is loaded, the revolving mec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.