Back to results
US 6,418,655 B1Granted
Underbarrel shotgun
OwnerIra M. Kayinventor
Life of this patent
Estimating the term…
Abstract
A shotgun comprises a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking block configured to project into the barrel portion and lock the bolt assembly to the barrel prior to firing, the bolt assembly including a firing pin; and a trigger mechanism including a hammer for striking the firing pin.
Claims16
A gun, comprising:
- a) a receiver made from a first material;
- b) barrel having a portion extending into said receiver and made from a second material;
- c) a collar nut securing said barrel to said receiver;
- d) a bolt assembly disposed within said receiver and including a locking block configured to project into said barrel portion and lock said bolt assembly to said barrel prior to firing;
- e) said bolt assembly including a firing pin;
- f) a trigger mechanism including a hammer for striking said firing pin;
- g) said bolt assembly including a bolt having a recess into which said locking block is disposed;
- h) said bolt and said locking block including respective slots inclined opposite to one another;
- i) said bolt assembly including a bolt carrier having a vertical slot;
- j) said bolt assembly including a pin received through said slots thereby to secure said bolt to said bolt carrier;
- and
- k) said slots are configured such that translatory movement of said bolt carrier causes said locking block to move vertically within said recess.
9 more elements
A gun, comprising:
- a) a receiver made from a first material;
- b) barrel having a portion extending into said receiver and made from a second material;
- c) a collar nut securing said barrel to said receiver;
- d) a bolt assembly disposed within said receiver and including a locking block configured to project into said barrel portion and lock said bolt assembly to said barrel prior to firing;
- e) said bolt assembly including a firing pin;
- f) a trigger mechanism including a hammer for striking said firing pin;
- g) said bolt assembly including a bolt having a recess into which said locking block is disposed;
- h) said locking block includes a keyhole opening;
- i) said bolt assembly including a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and said bolt carrier and through said keyhole opening;
- j) said keyhole opening including a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through;
- and
- k) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said keyhole opening, thereby preventing forwardly movement of said firing pin.
9 more elements
A gun, comprising:
- a) a receiver made from a first material;
- b) barrel having a portion extending into said receiver and made from a second material;
- c) a collar nut securing said barrel to said receiver;
- d) a bolt assembly disposed within said receiver and including a locking block configured to project into said barrel portion and lock said bolt assembly to said barrel prior to firing;
- e) said bolt assembly including a firing pin;
- f) a trigger mechanism including a hammer for striking said firing pin;
- g) said bolt assembly including a handle;
- and
- h) said handle is positionable transversely to one side or another side of said receiver.
6 more elements
A bolt assembly for a single shot firearm, comprising:
- a) a bolt;
- b) a bolt carrier sidably connected to said bolt;
- c) a firing pin disposed in a longitudinal opening through said bolt and bolt carrier;
- d) a locking block configured to lock said bolt assembly preparatory to firing;
- e) said bolt includes a recess into which said locking block is disposed;
- f) said bolt and said locking block includes respective slots inclined opposite to one another;
- g) said bolt assembly includes a bolt carrier having a vertical slot;
- h) said bolt assembly includes a pin received through said slots thereby to secure said bolt to said bolt carrier;
- and
- i) said slots are configured such that translatory movement of said bolt carrier causes said locking block to move vertically within said recess.
7 more elements
A gun, comprising:
- a) a barrel and a receiver operably secured to said barrel;
- b) a bolt assembly disposed within said receiver;
- c) said bolt assembly including a firing pin;
- d) a trigger mechanism including a hammer for striking said firing pin;
- e) said bolt assembly including a bolt having a recess into which said locking block is disposed;
- f) said bolt and said locking block including respective slots inclined opposite to one another;
- g) said bolt assembly including a bolt carrier having a vertical slot;
- h) said bolt assembly including a pin received through said slots thereby to secure said bolt to said bolt carrier;
- and
- i) said slots are configured such that translatory movement of said bolt carrier causes said locking block to move into or out of said recess.
7 more elements
A gun, comprising:
- a) a barrel and a receiver operably secured to said barrel;
- b) a bolt assembly disposed within said receiver;
- c) said bolt assembly including a recess into which said locking block is disposed;
- d) said bolt assembly including a firing pin;
- e) a trigger mechanism including a hammer for striking said firing pin;
- f) said bolt assembly including a bolt having a recess into which said locking block is disposed;
- g) said locking block including a keyhole opening;
- h) said bolt assembly including a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and said bolt carrier and through said keyhole opening;
- i) said keyhole opening including a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through;
- and
- j) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said keyhole opening, thereby preventing forwardly movement of said firing pin.
8 more elements
A bolt assembly for a single shot firearm, comprising:
- a) a bolt;
- b) a firing pin disposed in a longitudinal opening through said bolt;
- c) a locking block configured to lock said bolt assembly preparatory to firing;
- d) said bolt including a recess into which said locking block is disposed;
- e) said locking block including a keyhole opening;
- f) said bolt assembly including a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and through said key hole opening;
- g) said keyhole opening including a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through;
- and
- h) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said key hole opening, thereby preventing forwardly movement of said firing pin.
6 more elements
A bolt assembly for a single shot firearm, comprising:
- a) a bolt;
- b) a firing pin disposed in a longitudinal opening through said bolt;
- c) a locking block configured to lock said bolt assembly preparatory to firing;
- d) said bolt assembly including a recess into which said locking block is disposed;
- and
- e) means for moving said locking block within said recess into a locked or unlocked position, said means for moving including respective slots in said bolt assembly and said locking block and a pin received within said slots.
3 more elements
Dependencies are inferred from the claim text.