Patents Examined by J. Woodrow Eldred
  • Patent number: 11022389
    Abstract: Techniques and architectures are disclosed for a gas operating system for a firearm. The system includes a barrel having a bore including a rifled portion. Attached to the barrel is a gas block. Located distally of the rifled portion of the bore is a gas expansion chamber in fluid communication with the bore and the gas block. In some examples, the gas expansion chamber includes a diameter at least twice the bore diameter. The gas block of the gas operating system, in some examples, includes a piston, where in response to receiving gases from the gas expansion chamber, the piston cycles the gas operating system.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: June 1, 2021
    Assignee: SIG SAUER, INC.
    Inventors: Douglas Aubin, David Michael Wilkes, Aaron C. Sakash, Lindsay Bunch
  • Patent number: 11022392
    Abstract: A safety lock for a firearm comprises a casing, a releasable locking member at a second end, and a flexible member between the first end and the second end. When the lock is installed on the firearm, the lock extends along the barrel from the chamber to the muzzle end. When in the locked position, the casing is positioned in the chamber and the flexible member extends along the barrel, an ammunition round from being loaded. The safety lock allows a user to dry fire the firearm.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: June 1, 2021
    Inventor: Gregory Wilhelm Wallgren
  • Patent number: 11015885
    Abstract: A flat top ar15 type lower receiver for a firearm.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: May 25, 2021
    Inventor: Parker Matthew Roth
  • Patent number: 11015886
    Abstract: Present invention discloses a rifle charging handle where one or two polymer pieces are made to fit over a T distal end of a main rigid body. A small protrusion on a hook shape latch, with limited elasticity, provides the locking mechanism to the upper receiver. The polymer pieces are secured by screws or other means; they provide a cost-effective option for ambidexterity variation and reduce metal wear on the upper receiver. The polymer pieces can also be secured to the main rigid body via a click-tab/click-hole mechanism. Other composite materials can be used to make the polymer pieces as long as they provide substantially similar rigidness and limited elasticity.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: May 25, 2021
    Assignee: Strike Industries
    Inventor: Shanyao Lee
  • Patent number: 11015911
    Abstract: A housing arrangement comprising a housing wall with internal cavities which contribute to relieving the pressure in the interior and to increasing the deformation resistance of the housing. A housing of this kind can be designed to be large in volume yet light in weight.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: May 25, 2021
    Assignee: R. Stahl Schaltgeräte GmbH
    Inventors: Thorsten Arnhold, Clife Hermanowski
  • Patent number: 11015883
    Abstract: Disclosed herein is a modified rifle bolt carrier allowing a selectively openable vent/valve at the location where exhaust gas is pressurizing the bolt carrier to control carrier speed under suppressed fire in a first valve position or unsuppressed fire in a second valve position. A valve core is disclosed which may be rotated 180° to a first “open” setting for non-suppressed fire from its position in a “closed” position for suppressed fire, and a third “median” position. The modified bolt carrier will allow an operator of the firearm to adjust for a suppressor without changing the gas block or having to modify or adapt the front end or barrel end of the firearm.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: May 25, 2021
    Assignee: Primary Weapons
    Inventor: Dean Sylvester
  • Patent number: 11009303
    Abstract: The barrel of a pistol, specifically in a short recoil operated pistol, is comprised of multiple bearings surfaces comprised of cams and lugs that allow the pistol to function. The surfaces mechanically delay the pistol enough to allow the pistol to reliably function in the manner of an automatic firearm, chambering a round at the end of each cycle of operation. A barrel that locates a forward lug positioned horizontally in front of the trigger guard of the pistol with side cams that are shallow and interact in a way to provide the pistol with a robust and consistent lock up from shot to shot to provide an advantage in the function of the firearm.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 18, 2021
    Assignee: DANIEL DEFENSE, LLC
    Inventor: Billie Cyril Hudson, III
  • Patent number: 10996034
    Abstract: An irritation member having a housing, wherein the housing has a front side and a rear side, as well as lateral surfaces connecting the front side and the rear side. The front side and rear side are larger than the lateral surfaces, thereby producing a parallelepipedal housing. The irritation member has blow-out openings on the lateral surfaces and an actuation element that is provided in a recess of the housing. In the event of non-actuation, the actuation element is thereby received in the recess of the housing and thus does not increase the size of the housing. As a result, the irritation member does not look like a conventional irritation member.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: May 4, 2021
    Assignee: Rheinmetall Waffe Munition GmbH
    Inventors: Martin Wustlich, Frank Habel, Kai Luebbers, Julia Heering, Philip Weber, Kolja Garber
  • Patent number: 10996014
    Abstract: A modular trigger assembly having auto-tensioning hammer pin and trigger pins which allow for rapid installation and removal of the modular trigger assembly from the lower receiver of an ArmaLite style modular rifle using minimal tools. When installed and under tension, the auto-tensioning pins remain flush with the exterior of the lower receiver and present no external parts outside of the lower receiver while maintaining anti-walk and anti-roll properties.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 4, 2021
    Assignee: Rable Machine, Inc.
    Inventors: Eric Schacht, Nicholas Steurer, Nathan Hawkins
  • Patent number: 10989499
    Abstract: A sight magnifier assembly is configured to be releasably secured to a rail feature of a firearm to be used with a sight assembly to enhance a downrange image. The sight magnifier assembly includes a base configured to be releasably secured to the rail feature of the firearm and a housing rotatably coupled to the base. The housing is configured to support sight optics used to enhance or improve the downrange image. The assembly further includes a mechanism configured to enable the rotation the housing with respect to the base between a use position in which the sight optics is configured to be used with the sight assembly and a stored position in which the sight optics is moved so that the housing and the sight magnifier assembly is nearly completely obscured from the operator by the sight assembly as viewed along a longitudinal axis.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: April 27, 2021
    Assignee: RAYTHEON CANADA LTD.—ELCAN
    Inventor: John Maxwell Connolly
  • Patent number: 10982921
    Abstract: A firearm barrel preloading device can preload threaded connections. The preloading device can include an outwardly facing barrel-contact surface, an outwardly facing receiver-contact surface, non-planar surfaces between the barrel-contact surface and the receiver-contact surface. The non-planar surfaces can include mated pairs of axisymmetric surfaces that cooperate to spread apart the barrel-contact surface and the receiver-contact surface when the preloading device is moved toward an expanded configuration.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: April 20, 2021
    Inventor: Theodore Karagias
  • Patent number: 10982922
    Abstract: A kit for modifying a firearm includes an adapter, and the adapter includes an external threaded surface configured to detachably couple to an internal threaded surface of a receiver of the firearm. An adapter bore is disposed opposite the external threaded surface, and the adapter bore is configured to receive a barrel of the firearm. The kit further includes a securing element, and the securing element includes a securing element bore configured to receive the barrel. The securing element is configured to detachably couple to the adapter and thereby secure the barrel to the adapter.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 20, 2021
    Assignee: NRB Development, LLC
    Inventor: Eric Burke
  • Patent number: 10982916
    Abstract: A bolt carrier group assembly and firearm containing a bolt carrier group assembly. The bolt carrier includes a first end closer to a front of the firearm and a second end closer to a rear end of the firearm and configured to slidably engage with a bolt. The bolt is configured to slide within the bolt carrier along a first axis and includes a plurality of lugs at a first end configured to engage with a corresponding plurality of lug receivers of the firearm, wherein the forward most edge of the plurality of lugs defines a bolt face of the bolt. The assembly further includes a cam pin operatively connected to the bolt and a cam slot within which the cam pin is constrained, wherein the cam pin travels along a path defined by the cam slot during rotational and translational movement of the bolt within the bolt carrier causing engagement and disengagement of the plurality of lugs and the lug receivers of the firearm.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: April 20, 2021
    Inventor: Edward Sugg
  • Patent number: 10962334
    Abstract: Inconspicuous ballistic armor that may be incorporated into or disguised within everyday articles in the environment in which it is deployed. The ballistic armor includes a ballistic shield, an article attached to the front surface of the ballistic shield, and hand/arm straps attached to a rear surface of the ballistic shield. A thin sheet of hardened abrasion-resistant steel may alternatively be affixed to the ballistic shield core and may wrap around the core slightly to allow for attachment of arm straps and hand holds behind the shield. Examples of the article attached to the front surface include a desktop calendar, a whiteboard, corkboard and artwork. The ballistic shield is formed from high strength, lightweight synthetic fiber that can withstand gunfire. The hand/arm straps may be formed from a webbing strap material that is attached, such as by rivets or special fasteners, to the rear surface of the ballistic shield.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: March 30, 2021
    Assignee: Armor at Hand
    Inventor: Chad A. Ahrens
  • Patent number: 10962314
    Abstract: A firearm includes a barrel portion, a slide, and a frame. The frame includes a grip, and the grip includes a magazine chamber and a rear surface adjacent the slide. At least one sensor is carried by the grip, and the at least one sensor adapted to sense a state of the magazine detachably received in the magazine chamber corresponding to a number of cartridges of ammunition remaining in the magazine. A display is carried on the rear surface of the grip, and the display includes a plurality of illuminating devices. The display is operatively coupled to the at least one sensor and is operable to visually present the number of cartridges of ammunition remaining in the magazine by illuminating at least one of the plurality of illuminating devices.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 30, 2021
    Assignee: Laser Aiming Systems Corporation
    Inventors: Brian Hedeen, Mike Cisewski, Ethan Mork
  • Patent number: 10955204
    Abstract: Pistols have a body having a grip, the grip defining a magazine passage, the body having a trigger guard defining a trigger space, the body having an upper surface, the body having a first mounting facility, an upper frame assembly removably connected to the body in a connected position, the upper frame assembly including a trigger element extending into the trigger space when in the connected position, a protrusion extending upward from the upper surface of the body, the protrusion having a forward-facing first bearing surface, and the upper frame assembly having a rear-facing second bearing surface adapted to abut the first bearing surface when in the connected position to transmit recoil forces from the upper frame assembly to the body. The upper frame assembly may have a slide rail. The upper frame assembly may define a horizontal slide plane.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: March 23, 2021
    Assignee: ZRODELTA, LLC
    Inventors: Patrick L. Harrigan, Johnathan Charles Birk, Joel Edwards, Timothy Wayne Raley
  • Patent number: 10955226
    Abstract: A hand grenade for producing smoke, having a housing provided with outflow openings for the smoke to be produced. The hand grenade also has a fuse head having an igniter for igniting the hand grenade and an ignition and delay line. An active charge can be ignited via the fuse head and the ignition and delay line, creating a carrier gas in the housing. An effect region is also provided in the hand grenade, by means of which at least one effect module of the hand grenade can be supplied. The effect module contains an active ingredient that can be converted into its gaseous state of aggregation by the action of heat and can flow out of the outflow openings with the carrier gas.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: March 23, 2021
    Assignee: RHEINMETALL WAFFE MUNITION GMBH
    Inventors: Holger Mohrmann, Wolfgang Schuetzenduebel, Christopher Zimmermann
  • Patent number: 10940931
    Abstract: A craft having a source of deuterium-containing micro-fusion fuel particles is operable above a planetary, lunar or asteroid surface in the presence of ambient cosmic rays. The fuel particles are dispersible from a set of ports, where at least some of the ports are in an underside of the craft body and others are in lateral sides of the craft body. Dispersed fuel particles interact with ambient cosmic rays and muons to generate energetic reaction products, at least some which are then received by the underside of the craft to generate lift and also selected lateral sides of the craft to generate propulsive thrust in a desired lateral direction. The craft can carry tethers and winches to carry a payload above the surface from location to another. In another embodiment, a balloon-based design, such as a dirigible, provides primary buoyant lift, while the micro-fusion particles provide at least lateral thrust, and supplemental lift where needed.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 9, 2021
    Inventor: Jerome Drexler
  • Patent number: 10942008
    Abstract: A system having a digital reticle and an application running on a processor. The digital reticle has an indicator structured to provide a notification signal to a user. The digital reticle is configured to receive a ballistics profile from an electronic ballistics calculator. The application is configured to determine a predicted terminal performance value of the projectile based, at least in part, on the ballistics profile. The application is further configured to receive a user input indicative of a desired terminal performance value for a projectile and to transmit a signal corresponding to the user input. The digital reticle is further configured to receive the signal corresponding to the user input and to activate the indicator when the predicted terminal performance value does not exceed the desired terminal performance value.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 9, 2021
    Assignee: SIG SAUER, INC.
    Inventor: Andrew W. York
  • Patent number: 10933988
    Abstract: Sounds are generated by an aerial vehicle during operation. For example, the motors and propellers of an aerial vehicle generate sounds during operation. Disclosed are systems, methods, and apparatus for actively adjusting the position of one or more propeller blade treatments of a propeller blade of an aerial vehicle during operation of the aerial vehicle. For example, the propeller blade may have one or more propeller blade treatments that may be adjusted between two or more positions. Based on the position of the propeller blade treatments, the airflow over the propeller is altered, thereby altering the sound generated by the propeller when rotating. By altering the propeller blade treatments on multiple propeller blades of the aerial vehicle, the different sounds generated by the different propeller blades may effectively cancel, reduce, and/or otherwise alter the total sound generated by the aerial vehicle.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: March 2, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Brian C. Beckman, Gur Kimchi, Allan Ko