Class / Patent application number | Description | Number of patent applications / Date published |
042051000 | MUZZLE LOADERS | 34 |
20080282596 | MUZZLE-LOADING FIREARM AND EASILY REMOVABLE BREECH PLUG FOR USE THEREWITH - A muzzle-loading firearm includes a breech plug for mating, non-threaded engagement with a housing located at the breech end of an axial bore of the firearm barrel. The breech plug includes a body member having opposite first and second ends and an outer surface between the ends and configured so that when the breech plug is positioned within the housing, the outer surface is spaced close to the inside surface of the housing to facilitate insertion and removal of the breech plug from the housing. The body member is formed with a passageway for fluidly communicating ignition with a powder charge at the second end when the firearm is loaded. The ignition source (primer or percussion cap) can be inserted directly to a chamber in the first end of the body member or alternatively, to a chamber in the breech area of the firearm itself where that chamber fluidly communicates with the passageway at the first end of the body member. The body member may have a powder chamber for receiving and retaining at least part of a powder charge at the second end when the firearm is loaded. The material and dimensions of the body member may be such that the body member deforms radially outwardly so that the outer surface of the body member and the inside surface of the housing form an essentially gas-tight seal during firing. The powder chamber contains much of the powder residue generated by the firing. In order to insure that the muzzle-loader cannot be readily used as, or converted to, a breech-loading firearm, different muzzle-loader/breech plug design features are presented. With one design feature, the maximum cross-sectional inner dimension of the housing is less than the diameter of the bore of the barrel. With another design feature, alignment of the firing pin and primer chamber (or hammer and percussion cap holder) is along an axis not centered with the axial bore of the barrel. The cross-sectional shape of the housing and breech plug may be non-cylindrical. For example, the cross-sectional shape can be oblong, essentially triangular, etc. Thus, conventional, breech-loading ammunition will not be effectively usable in the muzzle-loading firearm. | 11-20-2008 |
20090265973 | QUICK-ASSEMBLY BREECH PLUG FOR MUZZLELOADER FIREARMS - The invention relates to a quick-assembly breech plug for muzzleloader firearms, allowing a quick assembly and disassembly and being extremely practical, simple to manufacture and having a low cost, wherein said breech plug comprises a cylindrical body ( | 10-29-2009 |
20100024272 | MUZZLE LOADING RIFLE WITH REMOVABLE BREECH PLUG - A muzzle loading firearm has a barrel with a bore on a bore axis, and has a muzzle end and a breech end. A frame is connected to the barrel, and has a breech face. The frame moves between an open position in which the breech face is away from the breech end of the barrel, and a closed position in which the breech face abuts the breech end of the barrel. A breech plug is removably attached to the barrel, and is connected to the barrel by way of interrupted, or multistart threads, or locking lugs. The breech plug may have a rear face that abuts the breech face when the frame is closed, so that a primer contained in a primer pocket in the rear of the breech plug is fully supported on all sides. | 02-04-2010 |
20100064567 | BREECH PLUG FOR MUZZLELOADING RIFLE - A breech plug having a cylindrical body with a nipple on one end for receipt of a percussion element, and a stem on the other end with a length of constant uniform diameter, and a flash bore that extends longitudinally through the nipple, cylindrical body, and the stem. | 03-18-2010 |
20100154270 | MUZZLE LOADING FIREARM WITH REMOVABLE BREECH CAP - A muzzle loading firearm has an elongated barrel defining an elongated bore, with a muzzle end and a breech end. A breech cap is removably connected the breech end of the barrel to enclose a chamber at the rear of the bore. A portion of the breech cap may be external to the barrel, which may be externally threaded. The breech cap may be entirely clear of the breech bore, and the bore may have a consistent profile from end to end. The barrel threads may be standard, multistart or interrupted. The breech cap may overlay the face of the rear end of the barrel. | 06-24-2010 |
20100229446 | BREAK-ACTION FIREARM AND TRIGGER MECHANISM - A firearm having a frame and a barrel pivotally mounted to the frame, and further including a locking block pivotally mounted to the frame and movable between a first position and a second position, wherein in the first position the locking block engages the barrel to prevent pivotal motion thereof; and a trigger mechanism for a firearm having a neutral center of gravity, the trigger member having a geometry that results in an equal and/or symmetric distribution of its mass relative to the pivot point of the trigger, wherein impact caused by dropping the firearm will result in substantially equal application of forces on opposed sides of the trigger member, thereby reducing the likelihood of unintended discharge of the firearm. | 09-16-2010 |
20100275487 | ADVANCED MUZZLE LOADER AMMUNITION - A fixed round of ammunition for a muzzle loader firearm. The round has a bullet within a sabot that is engaged to a consumable cartridge case. The case is filled with propellant that is precisely calibrated to provide optimal ballistic properties with the particular bullet it is engaged to. The consumable cartridge case can be more tailored to respectively increase or decrease the burn rate of the consumable cartridge case. The consumable cartridge case can be constructed out of nitrocellulose or other energetic materials. A wide range of propellant formulas can be used that are safe because the burn rate is precisely calibrated for the bullet used. The propellant can contain pyrotechnic material and/or other ingredients to reduce the burn rate of a smokeless propellant and can contain a stabilizer to increase the shelf life of the ammunition round. | 11-04-2010 |
20110000118 | MUZZLELOADER FIREARM SYSTEM - Various embodiments of a muzzleloader firearm system are claimed and described. | 01-06-2011 |
20110005116 | MUZZLE LOADING RIFLE WITH BREECH PLUG HAVING GAS SEAL FACILITY - A muzzle loading firearm has a barrel with a bore on a bore axis, and the barrel has a muzzle end and a breech end. A frame is connected to the barrel, and has a breech face. The frame moves between an open position in which the breech face is away from the breech end of the barrel, and a closed position in which the breech face abuts the breech end of the barrel. A breech plug is removably attached to the barrel. The breech plug including a seal element closely received by the bore. The seal element may be a set of piston rings that are received in a circumferential groove about a forward end of the plug, or may be a cup at the forward end, with a forward rim that flares under pressure to provide a gas seal. | 01-13-2011 |
20110061279 | SMALL CALIBER MUZZLE LOADING BLACKPOWDER FIREARM ADAPTED TO FIRE A SKIRTED PROJECTILE AND METHOD OF INSERTING SUCH A PROJECTILE IN THE BORE OF SUCH A FIREARM - A muzzle loading blackpowder firearm is disclosed having a barrel with a standard caliber bore therein. The firearm is adapted to fire a projectile having a skirted aft end of a larger initial diameter than the standard caliber bore of the firearm. The barrel has an enlarged bore at its outer end sized to receive the projectile aft end first, and a tapered transition between the enlarged bore and the standard caliber bore so that upon forcing the projectile through the enlarged bore and through the tapered transition, the tapered transition reduces the skirted aft end to the diameter of the standard bore. | 03-17-2011 |
20110138669 | MUZZLELOADING RIFLE WITH BREECH PLUG HAVING GAS SEAL FACILITY - A muzzleloading firearm has a barrel with a bore on a bore axis, and the barrel has a muzzle end and a breech end. A frame is connected to the barrel, and has a breech face. The frame moves between an open position in which the breech face is away from the breech end of the barrel, and a closed position in which the breech face abuts the breech end of the barrel. A breech plug is removably attached to the barrel. The breech plug including a seal element closely received by the bore. The seal element may be a set of piston rings that are received in a circumferential groove about a forward end of the plug, or may be a cup at the forward end, with a forward rim that flares under pressure to provide a gas seal. | 06-16-2011 |
20110185614 | MUZZLE LOADING FIREARM WITH BREAK-OPEN ACTION - A muzzle loading firearm with a break-open action includes a rear stock assembly and a barrel assembly. The barrel assembly includes an elongate barrel, having a bore with muzzle and breech ends, and a breech plug removably connected the breech end of the barrel, which encloses a chamber at the rear of the bore. The barrel assembly is pivotally attached to the rear stock assembly, and is movable with respect to the stock assembly between an open position in which the breech end is accessible for service, and a closed position in which the breech end is inaccessible and secured for discharge. A lever arm, optionally configured to serve as the firearm trigger guard, is user actuated for moving the action between the open and closed positions. The breech plug is configured for rapid removal from the barrel by hand when the action is open. | 08-04-2011 |
20110296729 | MUZZLE LOADING RIFLE WITH CENTERFIRE CARTRIDGE IGNITION - A muzzleloading rifle includes an action and a barrel assembly attached to a forward end of the action. The barrel assembly includes a barrel, a barrel extension and an intervening wall. The barrel has a breach end, a muzzle end and a primary chamber at the breach end for receiving a primary charge loaded through the muzzle end. The barrel extension is attached to the breach end of the barrel and includes a casing chamber positioned rearwardly from the primary chamber. The casing chamber is configured to receive a standard ammunition casing with an integral primer therein. The intervening wall separates the primary chamber from the casing chamber. The intervening wall includes a flash hole communicating between the casing chamber and the primary chamber. | 12-08-2011 |
20120137558 | MUZZLE-LOADING RIFLE EQUIPPED WITH A GUNPOWDER-PROOF SEALED BREECH PLUG - Muzzle-loading rifle, which comprises a breech plug ( | 06-07-2012 |
20120151812 | SLIDABLE HOOD LOCKING SYSTEM - A muzzle-loading firearm having a break-action design includes a stock, a receiver mounted to the stock, a forend pivotally mounted to the receiver and a barrel mounted to the forend. A hood is slidably attached to a top surface of the receiver in the area of a rear (i.e., breech) end of the barrel. The hood reciprocally engages and locks the barrel in a closed (i.e., firing) position. The hood also shields the area surrounding the breech end of the barrel from exhaust gas that flows therefrom. | 06-21-2012 |
20120192473 | MUZZLELOADING RIFLE WITH BREECH PLUG HAVING GAS SEAL FACILITY - A muzzleloading firearm has a barrel with a bore on a bore axis, and the barrel has a muzzle end and a breech end. A frame is connected to the barrel, and has a breech face. The frame moves between an open position in which the breech face is away from the breech end of the barrel, and a closed position in which the breech face abuts the breech end of the barrel. A breech plug is removably attached to the barrel. The breech plug including a seal element closely received by the bore. The seal element may be a set of piston rings that are received in a circumferential groove about a forward end of the plug, or may be a cup at the forward end, with a forward rim that flares under pressure to provide a gas seal. | 08-02-2012 |
20120240440 | Muzzleloading rifle with breech plug having primer seal facility - A firearm having a barrel with a bore on a bore axis, with the barrel having a muzzle end and a breech end. A frame is connected to the barrel and has a breech face. The barrel moves between an open position in which the breech face is away from the breech end of the barrel and a closed position in which the breech face abuts the breech end of the barrel and/or the breech plug's rear face. A breech plug is removably attached to the barrel. The breech plug includes a central passage that communicates between the primer and the flash hole. The passage forms a primer pocket at the breech end of the breech plug. The primer pocket has a diameter greater than the central passage. A circumferential groove in the primer pocket receives an O-ring. The O-ring encompasses the primer's cylindrical exterior to create a seal. | 09-27-2012 |
20120297657 | BREECH PLUG FOR USE WITH A MUZZLE-LOADING RIFLE - A breech plug for removable engagement with a muzzle-loading firearm barrel having a seating surface that forms an oblique angle with the longitudinal axis of the barrel. The breech plug includes a circumferential tightening mechanism. The circumferential tightening mechanism is configured to move the breech plug along the longitudinal axis within the firearm barrel. The breech plug also includes a continuous flange with a circumferential distal edge. The distal edge is configured to form a seal with the firearm barrel oblique angle seating surface upon movement of the breech plug by the circumferential tightening mechanism. | 11-29-2012 |
20120304519 | BREECH PLUG - A muzzle loading firearm has a barrel with a bore on a bore axis, and has a muzzle end and a breech end. A frame is connected to the barrel, and has a breech face. The frame moves between an open position in which the breech face is away from the breech end of the barrel, and a closed position in which the breech face abuts the breech end of the barrel. A breech plug is removably attached to the barrel, and is connected to the barrel by way of interrupted, or multistart threads, or locking lugs. The breech plug may have a rear face that abuts the breech face when the frame is closed, so that a primer contained in a primer pocket in the rear of the breech plug is fully supported on all sides. | 12-06-2012 |
20130174458 | Muzzle Loading Rifle with Breech Plug Having Gas Seal Facility - A barrel for use with a muzzle loading firearm has an elongated sleeve with rifling along at least a portion of its inner surface. The sleeve has a muzzle end and a breach end. The breech end has internal threading and a smooth cylindrical section. A portion of the smooth cylindrical section is configured to deform a sealing element on a breech plug from an initial diameter to a smaller final diameter during insertion of the breech plug into the breech end of the sleeve. | 07-11-2013 |
20130298437 | Breech Plug - A breech plug for a muzzle loading firearm is attachable to a barrel having a muzzle end and a breech end. A breech element having a breech face is connected to the breech end of the barrel. The breech element moves between an open position in which the breech face is away from the breech end of the barrel, and a closed position in which the breech face abuts the breech end of the barrel. A breech plug body is removably attachable to the breech end of the barrel. The breech plug body has a rear face that abuts the breech face when the breech element is closed, so that a primer contained in a primer pocket in the rear face of the breech plug body is fully supported on all sides. | 11-14-2013 |
20140033588 | Muzzle-Loading Firearm with a Removable, Threadless Breech Plug - An improved muzzle-loading firearm with a removable, threadless breech plug retained by a breech plug retaining collar, and a barrel retaining nut for simplifying manufacture, cleaning, preventing fouling and over-pressure situations, and minimizing alignment issues during, assembly of the firearm. The removable, threadless breech plug also allows for straightforward interchangeability of breech plugs for use with various primers and propellants. | 02-06-2014 |
20140082981 | BOLT ACTION MUZZLE LOADING FIREARM - A muzzle loading firearm includes a barrel, a receiver, and a breech plug located at the breech end of the barrel. An insert integral with or attached to the breech plug provides sealing engagement against an opening in a cartridge case. The breech plug and insert together define a bore to allow a flame from an ignited primer on a cartridge casing to travel to a projectile propellant at the breech end of the barrel. A bolt without conventional lugs is movable within the receiver between an open position and a closed position. A pin extends through the receiver engaging a camming groove in the bolt to guide and lock the bolt against a primer end of an ignition casing. The camming groove and metal pin are configured to compress a face of the ignition cartridge against the breech plug when the bolt is in the closed position. | 03-27-2014 |
20140090284 | MUZZLELOADER SYSTEMS - Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The breech end accepts the propellant and means are provided to prevent breech loading of the projectile. A propellant cartridge conforms to a constriction portion to minimize ullage. A projectile is inserted in the muzzle end seats on the constriction portion. The propellant cartridge may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The cartridge may have a primer mechanism integrated into a proximal end. Projectiles have sliding components that have an axial elongate position and an axial shortened position and may be loaded with a ramrod having an engagement portion for each of the two pieces whereby the projectile doesn't prematurely collapse. | 04-03-2014 |
20140090285 | MUZZLELOADER AND PROPELLANT SYSTEM - A muzzle-loader bullet system includes a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel. | 04-03-2014 |
20140123527 | INLINE HAMMERLESS PERCUSSION FIRING SYSTEM FOR MUZZLELOADER FIREARMS - An inline hammerless percussion firing system for muzzleloader firearms with a striker having a firing pin and a striker spring to linearly drive the firing pin forward. A cocking button compresses the striker spring. A pivoting retainer acts against a nut connected to the cocking button to hold the cocking button forward and keep the striker spring compressed. A sear acts to prevent the striker from moving forward until released by a two piece trigger system in which a trigger and trigger edge pivot relative to each other with lost motion before releasing the sear, allowing the trigger edge to move out from below a safety notch in the sear, where firing is prevented, to below a firing notch in the sear to prevent accidental discharges from impact. The cocking button can be released by an uncocking button. Releasing a barrel catch resets firearm to the initial safe position. | 05-08-2014 |
20140298702 | BOLT ACTION MUZZLE LOADING FIREARM - A muzzle loading firearm has a firing mechanism including a barrel having a breech end and a center bore case located over the insert. The breech plug and insert together define a bore to allow a flame from an ignited primer on a cartridge casing to travel to a projectile propellant at the breech end of the barrel and otherwise provide a seal between the receiver and the barrel. A substantially cylindrical bolt without conventional radially projecting lugs is recipricatable and partially rotatable within the receiver between an open position and a closed position in which an end of a bolt can compressibly engage against an ignition casing. A pin extends through a wall of the receiver engaging a camming groove in the bolt to guide the bolt and to lock the bolt against a primer end of an ignition casing when an ignition cartridge is loaded into the receiver. The camming groove and metal pin are configured to compress a face of the ignition cartridge against a breech plug when the bolt is rotated into the closed position. | 10-09-2014 |
20150013202 | OPEN IGNITION BREECH PLUG AND CONVERSION SYSTEM AND METHOD FOR MUZZLE-LOADING FIREARM - An open ignition breech plug for a muzzle-loading firearm. The open ignition breech plug includes an internal body portion for removable installation into the breech end of a barrel of the muzzle-loader, and an external body portion comprising a gripping surface, a nipple for receiving an ignition source such as a percussion cap, and at least one open portion of the external body portion for external visibility of the nipple and a percussion cap mounted thereon. The nipple can be integrally formed with the external body portion or removably mounted thereto. | 01-15-2015 |
20150027019 | Firearm Cartridge, Percussion Nipple and Forming Tool Therefor - The firearm cartridge has an upper chamber adapted to house gunpowder and a bullet, a lower pocket adapted to house a primer, and a flash hole extending there between. The lower pocket has a ledge disposed generally perpendicularly to the flash hole. The flash hole is formed with a perimeter wall that has a convex curvature adjacent to the ledge of the primer pocket. Likewise, a percussion nipple adapted for use in a black powder rifle has an elongated bore formed with relatively larger and smaller diameter portions connected by a shoulder, and the shoulder has a convex curvature adjacent to the larger diameter portion of the bore. The tool for forming the foregoing shapes has a tip provided with a concave curved surface corresponding to the convex curvature of the flash hole perimeter wall on the cartridge or to the convex curvature of the shoulder in the elongated bore of the percussion nipple. | 01-29-2015 |
20150143730 | MUZZLE-LOADING FIREARM WITH A MONO BLOCK AND RETAINING NUT - An improved muzzle-loading firearm with a removable, threadless breech plug retained by a breech plug retaining collar, and a barrel retaining nut for simplifying manufacture, cleaning, preventing fouling and over-pressure situations, and minimizing alignment issues during assembly of the firearm. The removable, threadless breech plug also allows for straightforward interchangeability of breech plugs for use with various primers and propellants. The muzzle-loading firearm has a barrel with a protrusion on the breech end of the barrel that fits into a matched groove within the mono block for use in aligning the barrel during assembly of the firearm. The muzzle-loading firearm has a barrel retaining nut, wherein the barrel retaining nut is internally threaded to accept the threaded end of the barrel thereby retaining the barrel in the mono block. | 05-28-2015 |
20160033231 | CONVERTED MUZZLELOADER ARROW GUN - A muzzleloader firearm is converted into a firearm adapted for firing an arrow. The stock assembly of the muzzleloader firearm is retained while the barrel assembly is completely removed, and replaced by an arrow barrel assembly. The arrow barrel assembly has a stock assembly attachment for releasably engaging the stock assembly of the muzzleloader firearm, and a barrel attachment for engaging an inner barrel tube that holds an arrow shaft with a hollow interior and propels the arrow out of the firearm when a blank cap is activated, and an outer shroud to protect the inner barrel tube and enclose a loaded arrow. The arrow barrel assembly rearward end has formed recesses for receiving the blank cap and aligning the rim of the blank cap with the firing pin of the muzzleloader stock assembly. | 02-04-2016 |
20160091275 | Advanced Muzzleloader System - A muzzleloader system is provided. The muzzleloader system includes a barrel with a muzzle and chamber end, a chamber block including a flash channel, a rotating primer holder and a round having a reusable inert projectile body with a sealed propellant charge. The method includes loading a round having a reusable inert projectile body and a sealed propellant charge down the muzzle end of a barrel bore until it abuts against a chamber block, loading a primer into a rotatable primer holder, closing the primer holder and striking the primer with a firing pin. | 03-31-2016 |
20160138888 | MUZZLE LOADING RAMROD - A ramrod for a muzzleloader is provided. The ramrod includes a shaft having a knob releasably coupled to one end thereof, the knob having a rounded end and a tapered end that oppose one another. The knob may have a central bore therein, and the shaft may be inserted into the central bore. The tapered end of the knob is configured with respect to the shaft to allow any object that contacts the shaft and slides along the shaft to also slide along and eventually off of the tapered end of the knob without snagging or catching the knob. The rounded end of the knob is positioned at a distal end of the shaft and is configured with respect to the shaft to allow a user of the ramrod to place his/her palm against the rounded end while operating the ramrod to load a muzzleloader. | 05-19-2016 |
20160146570 | MUZZLE LOADING SYSTEM - A muzzle loading device includes a hollow shot holding chamber having a first and second end; an actuator located at the first end; and a flexible restraining mechanism and a muzzle alignment feature located at the second end. The flexible restraining mechanism is biased to a closed state, and, in response to the actuator being actuated, goes to an open state. The actuator includes a plunger, a bullet seat, and a spring. The plunger traverses axially along a hollow portion of the hollow shot holding chamber into the muzzle, eliminating the need for a bullet starter. The spring biases the plunger away from the flexible restraining mechanism and limits the traversing distance of the plunger. The hollow shot holding chamber includes an end portion shaped to correspond to an outer geometry of a muzzle. | 05-26-2016 |