Breathing filter assembly
    1.
    发明授权

    公开(公告)号:US11504555B2

    公开(公告)日:2022-11-22

    申请号:US17003196

    申请日:2020-08-26

    申请人: Robert Zimmer

    发明人: Robert Zimmer

    IPC分类号: A62B23/00 A62B23/06

    摘要: A breathing filter assembly for filtering breathing air includes a breathing unit that includes a mouthpiece that can be placed in a user's mouth. The breathing unit includes a pair of nose tubes that can each be positioned in a respective one of the user's nostrils when the mouthpiece is positioned in the user's mouth. A filter is removably insertable into the breathing unit. The filter is made of an air permeable material to pass air therethrough for breathing. The filter extends into the mouthpiece and each of the nose tubes to filter air inhaled through the user's mouth or the user's nose.

    Respiratory protection mask
    2.
    发明授权

    公开(公告)号:US11497946B2

    公开(公告)日:2022-11-15

    申请号:US15930455

    申请日:2020-05-13

    发明人: Chao-yuan Tseng

    摘要: A respiratory protection mask includes detachably connected main body and front cover. The main body includes a shielding member for shielding a wearer's mouth and nose, and has air outlet with air-outlet valve and air inlets with air-inlet valves. The mask is characterized in a guide structure and a limiting structure provided between the main body and the front cover. The guide structure includes corresponding slide rail and slide channel capable of guiding the front cover to move along a linear path parallel to a longitudinal section of the air outlet to assemble to the main body and cover the air-outlet valve. The limiting structure includes corresponding male and female fasteners that are detachably engaged with each other when the front cover is assembled to the main body, preventing the front cover from moving in an opposite direction on the linear path to separate from the main body.

    Adjustable breathing apparatus
    5.
    发明授权

    公开(公告)号:US10888722B2

    公开(公告)日:2021-01-12

    申请号:US15633512

    申请日:2017-06-26

    申请人: Russell Klimpel

    发明人: Russell Klimpel

    IPC分类号: A62B23/00 A62B7/10 B01D46/10

    摘要: A filter mask comprising a base plate having a first opening and a second opening, a mouth piece having a first end and second end wherein the first end of the mouth piece is attached to first opening of the base plate, a unidirectional exhaust port attached to the second opening of the base plate, a filter fitted to the base plate, wherein the first opening and the second opening are covered by the filter, a filter lock detachably engaged with the base plate wherein the filter is secured to the base plate.

    Down feather filter medium
    7.
    发明授权

    公开(公告)号:US10821384B2

    公开(公告)日:2020-11-03

    申请号:US15731936

    申请日:2017-08-28

    申请人: Ronie Reuben

    发明人: Ronie Reuben

    摘要: An air/gas filter medium is comprised of a substantially homogeneous core layer of feather down clusters held together by a binder to form a 3-dimensional interconnected filament structure throughout the core. The filament structure forms air pocket and connect and trap the feather down clusters which form minute air pockets between its filaments and hairs in which undesirable substances from an air/gas flow therethrough are captured. An air permeable scrim sheet is retained on a surface of the down cluster core. The down cluster core is compressed to a predetermined density to modify the average size of said minute air pockets to trap known undesirable substances from the air/gas flow.

    CONFORMAL FILTER
    9.
    发明申请
    CONFORMAL FILTER 审中-公开

    公开(公告)号:US20200054902A1

    公开(公告)日:2020-02-20

    申请号:US16540492

    申请日:2019-08-14

    发明人: Sean Springer

    IPC分类号: A62B23/00

    摘要: A filter housing for use with a protective mask or other personal protective equipment is described including a base, a top, a sidewall connecting the top and the base, and a void that houses a filter medium or a filter medium cannister. The housing also includes an inlet with an inlet opening for receiving ambient gas into the container, an outlet including an outlet opening for discharging gas from the container to the protective mask, and an interface for removably securing the filter housing to the protective mask or other personal protective equipment. The base may include a concave surface substantially surrounding the opening and the interface, and a space between the void and the concave surface of the base may be partitioned by a plurality of members connected at least partially to the base or the sidewall and define a substantially planar surface facing the void.

    In-mouth Filter against Insects and Particulates

    公开(公告)号:US20190329120A1

    公开(公告)日:2019-10-31

    申请号:US15963112

    申请日:2018-04-26

    IPC分类号: A63B71/08 A62B23/00

    摘要: An in-mouth barrier against entry of insects, pollen and particulates in to the open mouth of a user, particularly in strenuous outdoor exercises, needs to be comfortable and fully effective for various extents of an agape mouth, and ideally should require no conscious effort to re-position in even long exercise durations. A filter frame surrounding a screen is formed to the dental arch so as to envelope both rows of teeth except possibly the molars. A flange on the frame holds the frame on the mandibular teeth and prevents the frame from moving down. The end of the flange lies under the tip of the tongue and prevents the frame from moving up. The frame thus remains comfortably inside the vestibule and covers the mouth for the various extents it may be opened to.