US 12,169,107 B2
Monolithic noise suppression device with purposely induced porosity for firearm
Richard Ryder Washburn, III, Ridgewood, NY (US); Michael Berkeypile, Ridgewood, NY (US); and Richard Ryder Washburn, II, Ridgewood, NY (US)
Assigned to Centre Firearms Co., Inc., Ridgewood, NY (US)
Filed by Centre Firearms Co., Inc., Ridgewood, NY (US)
Filed on Sep. 2, 2022, as Appl. No. 17/929,493.
Application 17/929,493 is a continuation of application No. 16/923,131, filed on Jul. 8, 2020, granted, now 11,435,155.
Application 16/923,131 is a continuation of application No. 16/561,196, filed on Sep. 5, 2019, granted, now 11,092,399, issued on Aug. 17, 2021.
Prior Publication US 2023/0296342 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F41A 21/30 (2006.01)
CPC F41A 21/30 (2013.01) 20 Claims
OG exemplary drawing
 
1. A noise suppression device comprising:
a body including an outermost external surface of the noise suppression device, an internal portion, a first end, and a second end;
a core seamlessly connected to the internal portion of the body and including a plurality of baffles; and
a bore extending completely through and along a longitudinal axis of the noise suppression device, wherein
porosity is a fraction of a volume of pores per volume of mass in a material of the noise suppression device,
a structure of the pores is not random, and
the porosity of a portion of the core which includes one of the plurality of baffles is different than the porosity of a portion of the body.