Search

Bao Ping Ma

from Palo Alto, CA
Age ~72

Bao Ma Phones & Addresses

  • Palo Alto, CA
  • Redwood City, CA
  • Atlanta, GA
  • San Francisco, CA
  • Los Altos, CA

Publications

Us Patents

Spiral Drum Magazine With Elongated Magazine Clip And Single Piece Last Round Follower

View page
US Patent:
49267426, May 22, 1990
Filed:
May 24, 1988
Appl. No.:
7/198061
Inventors:
Bao P. Ma - Atlanta GA
Zhong Shou-Fu - Shandong, CN
Qin Z. Li - Gunmin, CN
Assignee:
Poly Technologies, Inc. - Beijing
International Classification:
F41D 1042
US Classification:
89 3302
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 the last round follower (85) moves through the turn and into the clip magazine (22) to push the last round of ammunition to the weapon.
Bao Ping Ma from Palo Alto, CA, age ~72 Get Report