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125 条记录 (耗时 0.026 秒)

    Adjustable gas block
    4.
    发明授权
    Adjustable gas block 有权

    公开(公告)号：US11788808B2

    公开(公告)日：2023-10-17

    申请号：US18109806

    申请日：2023-02-14

    申请人： LWRC International LLC

    发明人： Robert Stanley Schilling ,  Jason Lee Miller ,  Michael R. Llewellyn

    IPC分类号： F41A5/00 ,  F41A5/26 ,  F41A5/28

    CPC分类号： F41A5/28

    摘要： Systems and methods for an adjustable gas block are described. Systems may include an adjustment subassembly. The adjustment subassembly may include a valve stem end with a front-most portion larger in diameter than the rear-most portion and a boss extending from the forward portion of the valve stem end; a valve ring surrounding the boss of the valve stem end; a valve threaded portion for receiving the boss of the valve stem end and having a threaded portion; and a valve rotator coupled to the valve threaded portion for adjusting the flow of gas. Systems may include a gas block assembly. The gas block assembly may include a gas block through hole; a first duct to direct pressurized gas from a barrel to a plenum; a second duct to direct a regulated volume of gas to a gas operating system; a seat valve to control the regulated volume of gas to the gas operating system; and a gas block threaded portion for coupling to the valve threaded portion. The adjustment subassembly may be coupled to the gas block assembly.

    Barrel nut assembly and method to attach a barrel to a firearm using such assembly
    8.
    发明授权
    Barrel nut assembly and method to attach a barrel to a firearm using such assembly 有权

    公开(公告)号：US10697726B2

    公开(公告)日：2020-06-30

    申请号：US15332143

    申请日：2016-10-24

    申请人： LWRC International LLC

    发明人： Jesus S. Gomez

    IPC分类号： F41A21/48 ,  F41A5/26

    摘要： A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

    Process and apparatus for ethanol dehydration
    9.
    发明授权
    Process and apparatus for ethanol dehydration 有权

    公开(公告)号：US10661243B2

    公开(公告)日：2020-05-26

    申请号：US15538777

    申请日：2015-12-08

    申请人： Technip E&C Limited

    发明人： Leslie William Bolton

    IPC分类号： C07C1/24 ,  B01J8/04 ,  C07C11/04

    摘要： The present invention provides a process for the preparation of ethene by vapour phase chemical dehydration of ethanol using an adiabatic reactor, wherein the interior of the adiabatic reactor is separated into at least three reaction zones, comprising a first reaction zone, at least one intermediate reaction zone and a final reaction zone, and wherein each zone contains an ethanol dehydration catalyst; said process comprising the steps of; a) feeding a pre-heated reactant feed-stream into an inlet of the first reaction zone; b) extracting an effluent-stream from an outlet of the first reaction zone; c) feeding said effluent-stream into an inlet of a subsequent intermediate reaction zone; d) extracting an effluent-stream from an outlet of the intermediate reaction zone; e) repeating steps (c) and (d) for any subsequent intermediate reaction zones, if present; f) feeding, into an inlet of the final reaction zone, the effluent-stream from the preceding intermediate reaction zone; g) extracting a product stream from an outlet of the final reaction zone; wherein the effluent-streams are re-heated prior to being fed into a subsequent reaction zone by means of one or more heat exchangers and; and wherein a single heat exchanger simultaneously re-heats at least two of the effluent-streams, such that no more than one heat exchanger is present for every two effluent-streams being re-heated in the process.

    Firearm buffer system and buttstock assembly
    10.
    发明授权
    Firearm buffer system and buttstock assembly 有权

    公开(公告)号：US10591245B2

    公开(公告)日：2020-03-17

    申请号：US15918935

    申请日：2018-03-12

    申请人： LWRC International LLC

    发明人： Jesus S. Gomez

    IPC分类号： F41C23/04 ,  F41C23/06 ,  F41C23/22 ,  F41A5/18 ,  F41A3/84

    摘要： A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.