Patent · US Expired

Spiral drum magazine with elongated magazine clip and multiple link last round follower

US4745842A · kind A · utility

38Cited by
17References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 16, 1986
Grant dateMay 24, 1988
Priority date
Expiry dateOct 16, 2006

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF41A9/75
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

The magazine includes a clip magazine (22) above a drum magazine (11) and connectable to an automatic weapon. Door (15) is hinged at its lower edge to open downwardly from clip magazine (22). The torsion spring (21) can be wound by external crank (20), and the spring bias can be relieved by pushing latch plunger (60). The protrusion (102, 103) of the last round follower (85) moves progressively along the spiral path (81) of the drum magazine (11) and its three links (86, 88 and 89) move through the turn and into the clip magazine (22) to push the last round of ammunition to the weapon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.