US 11,859,932 B1
Machine gun suppressor
Krzysztof J. Kras, Fremont, NH (US)
Assigned to Sig Sauer, Inc., Newington, NH (US)
Filed by Sig Sauer, Inc., Newington, NH (US)
Filed on Jun. 28, 2022, as Appl. No. 17/851,346.
Int. Cl. F41A 21/30 (2006.01)
CPC F41A 21/30 (2013.01) 20 Claims
OG exemplary drawing
 
1. A suppressor comprising:
a hollow tubular housing extending along a bore axis from a proximal end to a distal end;
a baffle stack within the hollow tubular housing and extending along the bore axis from a proximal baffle stack end to a distal baffle stack end, the baffle stack comprising a tubular baffle wall with a plurality of baffle structures connected to an inside of the tubular baffle wall, individual baffle structures of the plurality of baffle structures tapering proximally to a central opening on the bore axis, wherein the suppressor defines an inner volume inside of the tubular baffle wall, and an outer volume between the tubular baffle wall and the hollow tubular housing;
flow-directing structures in the outer volume, the flow-directing structures including pairs of diverging vanes and pairs of converging vanes with respect to gases flowing distally through the suppressor; and
a conduit wall extending between and connecting adjacent baffle structures of the plurality of baffle structures, wherein the conduit wall defines a gas flow pathway in a radially outer portion of the inner volume, the gas flow pathway passing around a proximal one of the adjacent baffle structures and through an opening defined in a distal one of the adjacent baffle structures.