Firearm systems and methods
First Claim
1. A pair of mating rings comprising a matched set having a first ring and a second ring, the pair configured to cooperate with a piston of a gas operated firearm to mitigate gas leakage passed the piston, the pair comprising:
- a key formed on each ring of the pair, wherein each ring has a first side surface and a second side surface opposite the first side surface, wherein the first side surface of the first ring is adjacent to and facing the first side surface of the second ring, wherein a height of the key is a dimension extending away from the first side surface of each ring, and wherein a thickness of each ring is a dimension extending from the first side surface of each ring to the second side surface of each ring; and
a gap formed in each ring of the pair and configured to receive the key of the associated mating ring;
wherein an entire height of the key is equal to an entire thickness of the associated mating ring,wherein the gap of each ring spans a greater angular distance, in a direction around the ring, than a width of the key of each ring,wherein each ring has an inner ring surface and an outer ring surface opposite the inner ring surface,wherein a width of each ring is a dimension extending from the inner ring surface to the outside ring surface,wherein a length of the key of each ring is substantially equal to the width of the associated mating ring, andwherein the length of the key of each ring is orthogonal to the height of the key and the width of each ring.
1 Assignment
0 Petitions
Accused Products
Abstract
A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.
141 Citations
22 Claims
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1. A pair of mating rings comprising a matched set having a first ring and a second ring, the pair configured to cooperate with a piston of a gas operated firearm to mitigate gas leakage passed the piston, the pair comprising:
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a key formed on each ring of the pair, wherein each ring has a first side surface and a second side surface opposite the first side surface, wherein the first side surface of the first ring is adjacent to and facing the first side surface of the second ring, wherein a height of the key is a dimension extending away from the first side surface of each ring, and wherein a thickness of each ring is a dimension extending from the first side surface of each ring to the second side surface of each ring; and a gap formed in each ring of the pair and configured to receive the key of the associated mating ring; wherein an entire height of the key is equal to an entire thickness of the associated mating ring, wherein the gap of each ring spans a greater angular distance, in a direction around the ring, than a width of the key of each ring, wherein each ring has an inner ring surface and an outer ring surface opposite the inner ring surface, wherein a width of each ring is a dimension extending from the inner ring surface to the outside ring surface, wherein a length of the key of each ring is substantially equal to the width of the associated mating ring, and wherein the length of the key of each ring is orthogonal to the height of the key and the width of each ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A firearm, comprising:
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a barrel; a piston; a carrier key; a bolt carrier with the carrier key attached thereto and an unlocking cam surface; a bolt movably attached to the bolt carrier, the bolt comprising a plurality of locking lugs; a gas block; a gas tube comprising; a tube configured to provide gas from the barrel to the piston on the bolt of the firearm via the carrier key, wherein a first end of the tube is disposed within the carrier key, and wherein a second end of the tube is attached to the gas block; and a heat radiator formed on at least a portion of the tube through which the gas will travel to the piston; and a pair of mating rings comprising a first ring and a second ring, the pair of mating rings configured to cooperate with the piston to mitigate gas leakage passed the piston, the pair of mating rings comprising; a key formed on each ring of the pair, wherein each ring has a first side surface and a second side surface opposite the first side surface, wherein the first side surface of the first ring is adjacent to and facing the first side surface of the second ring, wherein a height of the key is a dimension extending away from the first side surface of each ring, and wherein a thickness of each ring is a dimension extending from the first side surface of each ring to the second side surface of each ring; and a gap formed in each ring of the pair and configured to receive the key of an other of the pair; wherein the pair of mating rings are a matched set such that, for each ring, an entire height of the key of one of the pair is equal to an entire thickness of the other of the pair; wherein the gap of each ring spans a greater angular distance, in a direction around the ring, than a width of the key of each ring; wherein the firearm is a carbine having the piston disposed on the bolt; wherein each ring has an inner ring surface and an outer ring surface opposite the inner ring surface; wherein a width of each ring is a dimension extending from the inner ring surface to the outside ring surface; wherein a length of the key of each ring is substantially equal to the width of the other of the pair; and wherein the length of the key of each ring is orthogonal to the height of the key and the width of each ring. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22)
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20. A firearm comprising:
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a barrel; a piston; a bolt carrier with a carrier key attached thereto and an unlocking cam surface; a bolt movably attached to the bolt carrier, the bolt comprising a plurality of locking lugs; a gas tube comprising; a tube configured to provide gas from the barrel of the firearm to the piston of the firearm via the carrier key attached to the bolt carrier of the firearm, and a heat radiator formed on at least a portion of the tube through which the gas will travel to the piston, the heat radiator comprising threads; and a pair of mating rings comprising a first ring and a second ring, the pair of mating rings configured to cooperate with the piston to mitigate gas leakage passed the piston, the pair comprising; a key formed on each ring of the pair, wherein each ring has a first side surface and a second side surface opposite the first side surface, wherein the first side surface of the first ring is adjacent to and facing the first side surface of the second ring, wherein a height of the key is a dimension extending away from the first side surface of each ring, and wherein a thickness of each ring is a dimension extending from the first side surface of each ring to the second side surface of each ring, and a gap formed in each ring of the pair and configured to receive the key of the other of the pair; wherein the pair of mating rings are a matched set such that, for each ring, an entire height of the key of one of the pair is equal to an entire thickness of the other of the pair; wherein the gap of each ring spans a greater angular distance, in a direction around the ring, than a width of the key of each ring; wherein each ring has an inner ring surface and an outer ring surface opposite the inner ring surface; wherein a width of each ring is a dimension extending from the inner ring surface to the outside ring surface; wherein a length of the key of each ring is substantially equal to the width of the other of the pair; and wherein the length of the key of each ring is orthogonal to the height of the key and the width of each ring. - View Dependent Claims (21)
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Specification