# US 6,634,128 B1 · 0.22 caliber long rifle removable conversion system kit for black powder cap and ball reproduction and replica revolver—recreation and gallery shooting

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- Number: US 6,634,128 B1
- Document ID: US6634128B1
- Status: Granted
- Kind: B1
- Application number: 09/815,173
- Filed: 2001-03-23
- Granted: 2003-10-21
- Earliest claimed: 2000-10-04
- Inventors: Laszlo Vastag
- Web page: https://patentgrep.com/patent/US6634128B1

## CPC

- F41G 11/001: {Means for mounting sighting or aiming devices on firearms}
- F41A 9/28: of smallarm type (in revolvers F41C3/14)
- F41A 9/73: Drum magazines
- F41A 11/02: Modular concepts, e.g. weapon-family concepts
- F41A 15/02: for revolver-type guns, e.g. revolvers
- F41A 21/10: Insert barrels, i.e. barrels for firing reduced calibre ammunition and being mounted within the normal barrels
- F41A 21/484: {using interlocking means, e.g. by sliding pins}
- F41C 3/14: Revolvers (F41C3/10 takes precedence; sealing aspects F41A3/76; using a revolving drum magazine for feeding revolver-type guns other than revolvers F41A9/27; extractors or ejectors therefor F41A15/02)
- F41C 23/12: Auxiliary stocks for stabilising, or for transforming pistols, e.g. revolvers, into shoulder-fired guns
- F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B)
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR

## Abstract

A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap colt reproduction and replica revolver—recreation and gallery shooting comprises a barrel nut and a barrel sleeve nut being threaded to mate with a threaded portion of the outside diameter of the barrel sleeve and sized to fit snugly into the inside diameter of the outlet of the pistol barrel. Also included is a firing pin ring assembly comprised of a loading gate subassembly, firing pin subassembly and firing pin ring. Also included is a cartridge cylinder being cylindrical in shape with cartridge apertures configured to mate with and engage the existing rotation hand and locking lug of the pistol frame. Lastly included is a barrel wedge assembly comprising an expanding wedge subassembly and an unloading rod assembly comprising an unloading rod and an unloading rod housing.

## Claims

### Claim 1

A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap reproduction and replica revolver—recreation and gallery shooting, comprising;
two barrel tubular sleeves of different length, the shorter barrel tubular sleeve and a longer barrel sleeve, the short sleeve having an inlet, outlet, inside diameter, outside diameter and a central aperture, the outside diameter of the outlet is threaded and sized to fit loosely within the barrel of a black powder pistol, the inlet being configured in a flange-like shape having a smaller and larger component, the smaller component having a round cylinder like shape with a plurality of raised dimple to fit tightly into the inlet of the barrel rifling of the pistol, the large portion of the inlet being disc shaped, the long barrel sleeve is made of a tube having at one end a thread and the other end the lip and the raised dimple;
a long barrel nut comprising a round cylindrically shaped tube having an outside tapered threaded end with four letting slits having at the end four letting apertures, the tube also having an internal thread at the same end; the long barrel nut is locked with the locking nut;
a short barrel sleeve nut comprising an inlet and an outlet and a portion therein between each having an inside and outside diameter and a central aperture, the outside inlet diameter being round and sized to fit snugly within the inside diameter of a pistol barrel with an inside diameter of the nut inlet being threaded and sized to mate with the threaded portion of the threaded barrel tubular sleeve outlet, and the outlet portion of the nut being larger, approximating the outside diameter of the pistol barrel;
a firing pin ring assembly comprised of a loading gate subassembly and a firing pin subassembly and a firing pin ring, the firing pin subassembly having inboard and outboard components, the inboard component comprising a solid cylinder having a flat striking end and an outboard component of the firing pin subassembly being a solid cylinder with a threaded aperture, the firing pin ring having an inboard and outboard face and a generally cylindrical configuration with a central aperture through the ring, a recess surrounding the central aperture, and firing pin subassembly aperture comprising a spring nest aperture, a subassembly locking screw aperture for a locking screw below and tangent to the firing pin subassembly aperture, above the firing pin subassembly aperture at the upward most edge of the cylinder is a stepped groove perpendicular to the outboard face, with the lower quadrant surface, encompassing between about 75 and 100 degrees of circumference a flattened surface to receive the frame of the pistol with the flattened area creating two retention points, a loading gate locking pin nest aperture in the ring above and parallel with the flattened surface of the lower quadrant of the firing pin ring, a loading gate pivot aperture inboard from the outboard surface of the firing ring above the locking pin nest and running perpendicular to the outboard surface, the firing pin ring being interrupted and opened by a wedge-shaped cut with an inner radius cut, a congruously-shaped loading gate subassembly comprising a loading gate with an attachment tab and a loading gate pivot pin and a gate locking pin which is mated to the opening, being rotatable about 90 degrees around the pivot pin, with the locking pin capable of retaining the gate in an open and closed position;
a cartridge cylinder with a central aperture and with locking lug depressions on the outside surface and full length cartridge apertures in a circular equally spaced circumferential orientation around a central shaft aperture with a rotation ratchet to mate with and engage the existing pistol frame; and
a barrel wedge assembly comprising a wedge subassembly and an unloading rod assembly, the barrel wedge subassembly comprising an expanding wedge portion and an extraction portion, the unloading rod assembly, comprising an unloading rod and an unloading rod housing, the unloading rod being shaped in a U and a circumferential groove around the outside diameter of the rod, the housing being L shaped and having an aperture through the length of the short leg of the L allowing the rod to be housed within the aperture, the housing also having a through aperture to house a spring and a pin and a screw, the pin intersecting the aperture of the housing perpendicular to the path of the rod.

### Claim 2

A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap reproduction and replica revolver—recreation and gallery shooting, comprising;
a barrel sleeve;
a barrel sleeve nut being threaded to mate with a threaded portion of the outside diameter of the barrel sleeve and sized to fit snugly into the inside diameter of the outlet of the pistol barrel;
a firing pin ring assembly comprised of a loading gate subassembly, firing pin subassembly and firing pin ring,
a cartridge cylinder being cylindrical in shape with cartridge apertures configured to mate with and engage the existing rotation hand and locking lug of the pistol frame; and
a barrel wedge assembly comprising an expanding wedge subassembly and an unloading rod assembly comprising an unloading rod and an unloading rod housing.

### Claim 3 (depends on 2)

A conversion system as described in claim 2 and further including a shoulder stock assembly.

### Claim 4 (depends on 2)

A conversion system as described in claim 2 and further including a scope mount assembly.

### Claim 5

A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap reproduction and replica revolver—recreation and gallery shooting, comprising two barrel sleeves including a first short barrel sleeve with a nut at one end and a lip at the other end and a second long barrel sleeve with a lip at one end and a spacer nut at the other end, the spacer nut being elongated having four slits and tapered thread at the end and a locking nut with a tapered inner thread being mated to the thread of the elongated nut.

### Claim 6

A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap reproduction and replica revolver—recreation and gallery shooting, comprising:
a black powder revolver having a barrel and a cylinder and a barrel wedge;
a doughnut shaped firing pin ring with a firing pin assembly and loading gate, with the cylinder and firing pin ring mated and sized to be received by the pistol to replace he existing black powder cylinder; and
a barrel wedge to replace the existing barrel wedge of the pistol.

### Claim 7 (depends on 2)

The system as set forth in claim 2 wherein the firing pin ring has a peripheral edge with a curved flat spring pivoted thereto, the spring having two threaded apertures with an adjusting screw and a locking screw within the apertures for providing a snugger fit of the firing pin ring assembly on the gun's frame.

### Claim 8

A 0.22 caliber long rifle removable conversion kit for black powder, ball and cap reproduction and replica revolver—recreation and gallery shooting, comprising;
a barrel sleeve;
a barrel sleeve nut formed with a hook in combination with an unloading rod;
a firing pin ring assembly comprised of a loading gate subassembly, firing pin subassembly and firing pin ring,
a cartridge cylinder being cylindrical in shape with cartridge apertures configured to mate with and engage the existing rotation hand and locking lug of the pistol frame; and
a barrel wedge assembly comprising an expanding wedge subassembly and an unloading rod assembly comprising an unloading rod and an unloading rod housing.

### Claim 9 (depends on 8)

The conversion kit as set forth in claim 8 adapted for use on a revolver with a pistol handle.

### Claim 10 (depends on 8)

The conversion kit as set forth in claim 8 adapted for use on a revolver with a carbine stock.

### Claim 11 (depends on 6)

The conversion system kit as set forth in claim 6 with the system further including an attachable shoulder stock to couple with the grip of the pistol without marring the finish and surface of the pistol.

### Claim 12 (depends on 6)

The conversion system kit as set forth in claim 6 with the system further including a scope attachment to couple with pistol without marring the finish and surface of the pistol.