Mask apparatus
US-2020206545-A1 · Jul 2, 2020 · US
US12397181B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12397181-B2 |
| Application number | US-202217744636-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 14, 2022 |
| Priority date | Apr 30, 2020 |
| Publication date | Aug 26, 2025 |
| Grant date | Aug 26, 2025 |
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Official abstract text for this publication.
This invention is a protective face mask with a transparent portion which covers a wearer's nose and mouth, air intake and air exhaust ports on the front of the mask, one or more air impellors on the back of the wearer's head or neck, and one or more air tubes which conduct air between the air impellor and the transparent portion of the mask.
Opening claim text (preview).
I claim: 1. A protective face mask comprising: a face mask; a concave transparent portion of the face mask which is configured to cover a person's mouth; an air intake filter which is configured to be below the person's mouth and/or on the person's chin; an air exhaust filter; a first air tube or channel; a second air tube or channel; and an air impellor which is configured to be worn on the back of the person's head or neck; wherein air flows from the air intake filter to the air impellor through the first air tube or channel, and wherein air flows from the air impellor to a concave interior of the transparent portion through the second air tube or channel. 2. A protective face mask comprising: a face mask; a concave transparent portion of the face mask which is configured to cover a person's mouth; an air intake port which is configured to be below the person's mouth and/or on the person's chin; an air exhaust port; an air intake filter; an air exhaust filter; a first air tube or channel; second air tube or channel; and an air impellor which is configured to be worn on the back of the person's head or neck; wherein air flows in from the environment to the air intake port, wherein air flows from the air intake port to the air intake filter, wherein air flows from the air intake filter to the air impellor through the first air tube or channel, wherein air flows from the air impellor to a concave interior of the transparent portion through the second air tube or channel, and wherein air flows out from the concave interior of the transparent portion to the environment through the air exhaust port. 3. A protective face mask comprising: a face mask; wherein the face mask further comprises a concave transparent portion which is configured to cover a person's mouth; wherein the face mask further comprises an air intake port which is configured to be below the person's mouth and/or on the person's chin; wherein the face mask further comprises an air intake filter; wherein the face mask further comprises an air impellor, fan, turbine, propeller, pump, and/or blower configured to be located on the back of the person's head or neck; wherein the face mask further comprises a first air tube or channel which conducts air from the air intake filter to the air impellor, fan, turbine, propeller, pump, and/or blower, wherein the first air tube or channel is at least 5″ long; wherein the face mask further comprises a second air tube or channel which conducts air from the air impellor, fan, turbine, propeller, pump, and/or blower to a concave interior of the transparent portion, wherein the second air tube or channel is at least 5″ long; an air exhaust filter; and an air exhaust port.
with filter elements · CPC title
the speed thereof being controlled by respiratory parameters, e.g. by inhalation · CPC title
with pumps for forced ventilation (A62B18/045 takes precedence) · CPC title
Means for fastening to the user's head · CPC title
Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices (eye-pieces for protective goggles A61F9/02; composition of materials for the windows or other transparent parts A62D7/00) · CPC title
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