LASER TRAINER CARTRIDGE WITH MULTIPLE SUPPORT STRUCTURES
A laser trainer cartridge fits into a gun barrel and includes a backer, circuit and a laser. When the firing pin of the gun is activated it strikes the backer, which contacts the circuit and activates the laser. The laser trainer cartridge has a plurality of spaced-apart O-rings to keep it positioned properly in a gun barrel. The O-rings are configured to be positioned in a particular-sized gun bore. Multiple laser trainer cartridges, wherein each has different-sized O-rings to fit different caliber guns, may be provided as a kit.
1 . A laser trainer cartridge comprising a generally cylindrical outer casing, and including a plurality of spaced-apart O-rings on the outer casing, the plurality of O-rings configured to fit snugly within a gun barrel of a particular diameter; the laser trainer cartridge also having (a) a backer that is configured so as to be struck by a firing pin of a gun in which the laser trainer cartridge is positioned when the gun is fired, (b) a circuit, and (c) a laser, wherein the backer has a first position wherein it does not contact the circuit and a second position wherein it contacts the circuit, the backer configured to move from its first position to its second position when it is struck by the firing pin, and the circuit configured to cause the laser to illuminate when it is contacted by the backer.
2 . The laser trainer cartridge of claim 1 wherein the backer is comprised of urethane.
3 . The laser trainer cartridge of claim 1 wherein the backer has a durometer of between about 75 to about 95 Shore A.
4 . The laser trainer cartridge of claim 1 wherein the circuit includes a capacitor.
5 . The laser trainer cartridge of claim 1 that is battery powered.
6 . The laser trainer cartridge of claim 5 that includes three batteries.
7 . The laser trainer cartridge of claim 1 wherein the laser is activated for between about 7.5 to about 12.5 milliseconds when the circuit is contacted by the backer.
8 . The laser trainer cartridge of claim 1 wherein the circuit is a 4.5 V system.
9 . The laser trainer cartridge of claim 1 that includes: (a) a front portion and a front O-ring positioned on the front portion, the front O-ring having an outer diameter equal to or greater than the interior diameter of the bore of the gun barrel so as to create a snug fit in the gun barrel; and (b) a back portion and a rear O-ring positioned on the back portion, the rear O-ring having an outer diameter equal to or greater than the interior diameter of the bore of the gun barrel so as to create a snug fit in the gun barrel.
10 . The laser trainer cartridge of claim 9 wherein the front O-ring has a diameter of between the internal diameter of the gun barrel to 0.030″ greater than the internal diameter of the gun barrel.
11 . The cartridge laser trainer of claim 9 wherein the rear O-ring has an outer diameter of between the internal diameter of the gun barrel and 0.030″ greater than the internal diameter of the gun barrel.
12 . The laser trainer cartridge of claim 1 that is dimensioned to be received in either a 9 mm, .32 caliber, .38 caliber, .40 caliber, .44 caliber, .45 caliber or .50 caliber gun.
13 . The laser trainer cartridge of claim 9 that includes a first annular groove on the generally cylindrical outer casing, and the first O-ring is received in the first annular groove.
14 . The laser trainer cartridge of claim 9 that includes a second annular groove on the generally cylindrical outer casing, and the second O-ring is received in the second annular groove.
15 . The laser trainer cartridge of claim 9 wherein the first O-ring and second O-ring have the same outer diameter.
16 . The laser trainer cartridge of claim 15 wherein the first O-ring and second O-ring have the same inner diameter.
17 . The laser trainer cartridge of claim 5 wherein the generally cylindrical outer casing has an inner cavity and includes one or more batteries in the inner cavity.
18 . The laser trainer cartridge of claim 17 that further includes an insulating sleeve, and a wall of the inner cavity, and the insulating sleeve is between the wall of the inner cavity and the one or more batteries.