US 9,810,507 B2
Open ignition breech plug and conversion system and method for muzzle-loading firearm
Mark D. Hendricks, Duluth, GA (US); and Kenneth L. Morgan, Lawrenceville, GA (US)
Assigned to BLACKPOWDER PRODUCTS, INC., Lawrenceville, GA (US)
Filed by BLACKPOWDER PRODUCTS, INC., Lawrenceville, GA (US)
Filed on Sep. 22, 2016, as Appl. No. 15/273,199.
Application 15/273,199 is a continuation of application No. 14/318,974, filed on Jun. 30, 2014, granted, now 9,459,071.
Claims priority of provisional application 61/846,208, filed on Jul. 15, 2013.
Prior Publication US 2017/0082392 A1, Mar. 23, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. F41C 7/00 (2006.01); F41C 9/08 (2006.01); F41A 11/00 (2006.01); F42B 5/02 (2006.01); F41A 3/04 (2006.01); F41A 21/12 (2006.01); F41A 3/58 (2006.01); F41A 3/64 (2006.01)
CPC F41C 9/08 (2013.01) [F41A 3/04 (2013.01); F41A 3/58 (2013.01); F41A 3/64 (2013.01); F41A 11/00 (2013.01); F41A 21/12 (2013.01); F42B 5/025 (2013.01); Y10T 29/49716 (2015.01)] 24 Claims
OG exemplary drawing
 
1. A breech plug for a break-action muzzle-loading firearm, the breech plug comprising;
an internal body portion comprising a connection area for removable installation within a breech end of a barrel of the muzzle-loading firearm; and
an external body portion comprising a gripping flange at least partially surrounding a recess, a nipple positioned within the recess for receiving a percussion cap ignition source, and at least one opening through the gripping flange allowing visibility of the nipple and percussion cap ignition source through said at least one opening when the firearm is cocked and ready to fire.