Ambimjb LLC

United States of America

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2020 1
2019 4
Before 2019 5
IPC Class
F41A 35/06 - Adaptation of guns to both right and left hand use 3
F41A 11/02 - Modular concepts, e.g. weapon-family concepts 2
F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt 2
F41A 3/12 - Bolt action, i.e. the main breech opening movement being parallel to the barrel axis 2
F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt 2
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Found results for  patents

1.

Firearm with self-deploying stock

      
Application Number 16226110
Grant Number 10871344
Status In Force
Filing Date 2018-12-19
First Publication Date 2020-06-25
Grant Date 2020-12-22
Owner AMBIMJB, LLC (USA)
Inventor Brown, Jr., Michael Jay

Abstract

Provided is a collapsible stock for mounting to the top surface of a firearm. It includes a sliding beam slidably attachable to the top surface and slidable between collapsed and deployed positions. A butt member is on the sliding beam and a latch is configured to releasably hold the sliding beam in at least the collapsed and deployed positions.

IPC Classes  ?

  • F41C 23/04 - Folding or telescopic stocks or stock parts
  • F41C 23/20 - Butts; Butt plates; Mountings therefor
  • F41G 11/00 - WEAPON SIGHTS; AIMING - Details of sighting or aiming apparatus; Accessories
  • F41C 23/14 - Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop

2.

Reversible bolt for ambidextrous ejection

      
Application Number 16503671
Grant Number 10677553
Status In Force
Filing Date 2019-07-05
First Publication Date 2019-10-31
Grant Date 2020-06-09
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Provided is a firearm bolt having a rotating bolt body with a longitudinal axis with an extractor on the bolt body at a radial position relative to the axis. There are at least first and second transverse radial bores in the bolt body at an acute angle to one another converging at the longitudinal axis for selectively receiving a cam pin. Configuration of the bolt in a bolt carrier with a cam pin in the first transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to one side, and configuration with the cam pin in the second transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to an opposite side.

IPC Classes  ?

  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 35/06 - Adaptation of guns to both right and left hand use
  • F41A 11/02 - Modular concepts, e.g. weapon-family concepts
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt

3.

Firearm with side charging handle

      
Application Number 16503709
Grant Number 10527372
Status In Force
Filing Date 2019-07-05
First Publication Date 2019-10-31
Grant Date 2020-01-07
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Provided is a side charging handle system for an AR-pattern firearm with an upper receiver having an internal longitudinal bore for receiving a bolt carrier assembly for longitudinal reciprocation therein, a side longitudinal guide slot, and a side charging handle having an engagement pin extending through guide slot to engage the bolt carrier assembly.

IPC Classes  ?

  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 3/84 - Coil spring buffers mounted within the gun stock
  • F41A 3/12 - Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
  • F41A 3/82 - Coil spring buffers

4.

Firearm with reduced length bolt carrier and recoil assembly with side charging handle

      
Application Number 16229731
Grant Number 10443964
Status In Force
Filing Date 2018-12-21
First Publication Date 2019-08-22
Grant Date 2019-10-15
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Provided is a side charging handle system for an AR-pattern firearm with an upper receiver having an internal longitudinal bore for receiving a bolt carrier assembly for longitudinal reciprocation therein, a side longitudinal guide slot, and a side charging handle having an engagement pin extending through guide slot to engage the bolt carrier assembly. Also provided is a compact bolt carrier system including an upper receiver having an internal longitudinal bore for receiving a bolt carrier assembly for longitudinal reciprocation therein and a longitudinal recoil spring guide channel positioned above the internal longitudinal bore. The bolt carrier assembly has a bolt carrier body configured in length to reciprocate substantially entirely within the upper receiver and has a top lug extending into the recoil spring guide channel. A recoil spring is in the recoil spring guide channel.

IPC Classes  ?

  • F41A 3/82 - Coil spring buffers
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 3/84 - Coil spring buffers mounted within the gun stock
  • F41A 3/12 - Bolt action, i.e. the main breech opening movement being parallel to the barrel axis

5.

Handguard attachment mechanism

      
Application Number 16229622
Grant Number 10302388
Status In Force
Filing Date 2018-12-21
First Publication Date 2019-05-28
Grant Date 2019-05-28
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Provided is a mechanism for attaching a handguard to a firearm upper receiver that has a pivot lug for attachment to a lower receiver. The mechanism includes a barrel nut having an exterior surface and an annular groove, a handguard having an attachment portion with an axial opening to receive at least a portion of the exterior surface of the barrel nut including the annular groove, and a cross bore that, when the axial opening is assembled onto the barrel nut, substantially corresponds in position to the annular groove and that at least partially intersects the axial opening. The handguard has rearwardly extending fingers that engage opposite sides of the upper receiver pivot lug and a fastener, when inserted into the cross bore, engages the annular groove.

IPC Classes  ?

  • F41C 23/16 - Forestocks; Handgrips; Hand guards
  • F41G 11/00 - WEAPON SIGHTS; AIMING - Details of sighting or aiming apparatus; Accessories

6.

Reversible bolt for ambidextrous ejection

      
Application Number 15985954
Grant Number 10386142
Status In Force
Filing Date 2018-05-22
First Publication Date 2018-12-13
Grant Date 2019-08-20
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Provided is a firearm bolt having a rotating bolt body with a longitudinal axis with an extractor on the bolt body at a radial position relative to the axis. There are at least first and second transverse bores in the bolt body at an acute angle to one another converging at the longitudinal axis for selectively receiving a cam pin. Configuration of the bolt in a bolt carrier with a cam pin in the first transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to one side, and configuration with the cam pin in the second transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to an opposite side.

IPC Classes  ?

  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 35/06 - Adaptation of guns to both right and left hand use
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 11/02 - Modular concepts, e.g. weapon-family concepts

7.

Auto sear actuation linkage for compact AR-platform firearm

      
Application Number 15267803
Grant Number 10001336
Status In Force
Filing Date 2016-09-16
First Publication Date 2018-03-22
Grant Date 2018-06-19
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Disclosed is a mechanism for use with firearms having compact bolt carrier designs without modification of or connection to either the upper or lower receiver. It provides an auto sear trip linkage that is independent of both the upper and lower receivers and which may be used as a “drop in” unit to allow an upper receiver assembly otherwise configured for semi-automatic fire to be used in full-auto mode with a standard, full-auto capable AR-pattern lower receiver.

IPC Classes  ?

  • F41A 19/00 - Firing or trigger mechanisms; Cocking mechanisms
  • F41A 19/46 - Arrangements for the selection of automatic or semi-automatic fire
  • F41A 3/66 - Breech housings or frames; Receivers
  • F41A 19/12 - Sears; Sear mountings

8.

Foldable stock

      
Application Number 14996525
Grant Number 09829272
Status In Force
Filing Date 2016-01-15
First Publication Date 2017-07-20
Grant Date 2017-11-28
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Disclosed is a foldable stock for a firearm having a separate pistol grip with an open end. The stock includes a knuckle having a first portion mountable to a firearm in a fixed position and a second portion pivotally attached to the first portion and movable about a substantially laterally transverse axis relative to the first portion between an unfolded position and a downwardly folded position. A support member longitudinally extends from the second portion and a butt member is carried on the support member. The butt member is selectively longitudinally positionable on the support member relative to the knuckle between at least an extended position and a collapsed position. The butt member includes a heel surface for abutting a user's shoulder with a downwardly extending toe portion. The toe portion includes a connector configured to connectably engage the open end of the pistol grip and prevent pivotal movement of the knuckle when in the downwardly folded position with the butt member in the collapsed position. The knuckle is movable toward the unfolded position when the butt member is at least partially extended on the support member away from the collapsed position to disengage the connector from the open end of the pistol grip.

IPC Classes  ?

  • F41C 23/00 - Butts; Butt plates; Stocks
  • F41C 23/04 - Folding or telescopic stocks or stock parts
  • F41C 23/10 - Stocks or grips for pistols, e.g. revolvers
  • F41C 23/12 - Auxiliary stocks for stabilising, or for transforming pistols, e.g. revolvers, into shoulder-fired guns

9.

Gas system with multi-ported barrel

      
Application Number 15049624
Grant Number 09523543
Status In Force
Filing Date 2016-02-22
First Publication Date 2016-12-20
Grant Date 2016-12-20
Owner AMBIMJB, LLC (USA)
Inventor Brown, Michael Jay

Abstract

Provided is a gas operated firearm timing selection system having a barrel, first and second gas blocks, a gas delivery tube, and a selector tube. The barrel has at least first and second longitudinally spaced apart gas port locations. First and second gas blocks each correspond to one of the gas port locations. The gas delivery tube operably extends between the first gas block and an operating system of the firearm. The selector tube operably extends between the gas blocks to convey operating gas from either of the gas port locations and is selectively displaceable between at least a first position and a second position. Each position provides gas flow from only one of the gas port locations such that the timing of operating gas flow to the operating system is changed by selection between first and second positions.

IPC Classes  ?

  • F41A 19/02 - Burst limiters
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel

10.

Fire control switch for firearm

      
Application Number 13530730
Grant Number 09003948
Status In Force
Filing Date 2012-06-22
First Publication Date 2012-12-27
Grant Date 2015-04-14
Owner Ambimjb LLC (USA)
Inventor Brown, Michael Jay

Abstract

A fire control switch for a firearm includes a lever assembly mounted to a first end or to a second end of a shaft. The lever assembly includes a spring-loaded rotatable pawl moveable between a first position and a second position, wherein the lever assembly is mounted to the shaft when the pawl is in the first position and can be released from the shaft by moving the pawl from the first position to the second position. In other embodiments, a second lever assembly or cap may be mounted to the other end of the shaft.

IPC Classes  ?

  • F41A 19/33 - Arrangements for the selection of automatic or semi-automatic fire
  • F41A 35/06 - Adaptation of guns to both right and left hand use