公开(公告)号：US20180028846A1

公开(公告)日：2018-02-01

申请号：US15663599

申请日：2017-07-28

Applicant: Design West Technologies, Inc.

Inventor： Ryan Hur ,  Dennis Grudt ,  Bob Olson ,  Jeffrey Kim ,  Ramesh Palanisamy

IPC: A62B19/00 ,  A62B17/04 ,  B01D46/24 ,  B01D46/00 ,  B01D46/52 ,  B01D39/20 ,  A61M16/00 ,  A62B23/02

CPC classification number: A62B19/00 ,  A61M16/0003 ,  A61M16/0051 ,  A61M16/0069 ,  A61M2205/8206 ,  A62B9/006 ,  A62B17/04 ,  A62B18/006 ,  A62B18/088 ,  A62B23/02 ,  B01D39/2017 ,  B01D46/0036 ,  B01D46/2411 ,  B01D46/521 ,  B01D2279/40

Abstract: An air purifying respirator includes a dual stage fan that sucks outside air in through the filter canisters and then pushes the filtered air on to the user's mask or hood, where excess air escapes. A differential pressure sensor measures the pressure within the passages after the dual stage fan and in the ambient environment to estimate the user's rate of respiration. The microcontroller monitors the estimated rate of respiration, as well as the estimated altitude and its estimated amount of oxygen to calculate a user's filtered air flow need. The microcontroller adjusts the van via a fan controller to the appropriate air flow level. The microcontroller further monitors the battery level, filter life, and for low pressure within the user's mask and operates their respective indicators when problem levels arise. The battery supplies power to the microcontroller, power on/off button, and the dual stage fan.

公开(公告)号：US10330617B2

公开(公告)日：2019-06-25

申请号：US15867568

申请日：2018-01-10

Applicant: Design West Technologies, Inc.

Inventor： Ryan Hur ,  Ramesh Palanisamy ,  Jeffrey Kim ,  Gary Chen ,  Wei Li ,  Dennis Grudt

IPC: G08B21/00 ,  G01N27/04 ,  G08B21/14

Abstract: A wearable sensor badge utilizes a carbon nanotube (CNT) sensor array for selective sensing of chemicals from naturally diffused air or by sampling air using a pump/fan for higher sensitivity. An embedded microcontroller monitors the resistance of the sensing elements and by using an advanced detection algorithm the presence of TICs and/or CWAs are identified.

公开(公告)号：US10888721B2

公开(公告)日：2021-01-12

申请号：US15663599

申请日：2017-07-28

Applicant: Design West Technologies, Inc.

Inventor： Ryan Hur ,  Dennis Grudt ,  Bob Olson ,  Jeffrey Kim ,  Ramesh Palanisamy

IPC: A61M16/00 ,  A62B23/02 ,  B01D46/52 ,  B01D39/20 ,  B01D46/24 ,  A62B18/00 ,  A62B18/08 ,  A62B9/00 ,  A62B19/00 ,  A62B17/04 ,  B01D46/00

Abstract: An air purifying respirator includes a dual stage fan that sucks outside air in through the filter canisters and then pushes the filtered air on to the user's mask or hood, where excess air escapes. A differential pressure sensor measures the pressure within the passages after the dual stage fan and in the ambient environment to estimate the user's rate of respiration. The microcontroller monitors the estimated rate of respiration, as well as the estimated altitude and its estimated amount of oxygen to calculate a user's filtered air flow need. The microcontroller adjusts the van via a fan controller to the appropriate air flow level. The microcontroller further monitors the battery level, filter life, and for low pressure within the user's mask and operates their respective indicators when problem levels arise. The battery supplies power to the microcontroller, power on/off button, and the dual stage fan.

公开(公告)号：US20180195987A1

公开(公告)日：2018-07-12

申请号：US15867568

申请日：2018-01-10

Applicant: Design West Technologies, Inc.

Inventor： Ryan Hur ,  Ramesh Palanisamy ,  Jeffrey Kim ,  Gary Chen ,  Wei Li ,  Dennis Grudt

IPC: G01N27/04 ,  G08B21/14

CPC classification number: G01N27/04 ,  G08B21/14 ,  G08B25/10

Abstract: A wearable sensor badge utilizes a carbon nanotube (CNT) sensor array for selective sensing of chemicals from naturally diffused air or by sampling air using a pump/fan for higher sensitivity. An embedded microcontroller monitors the resistance of the sensing elements and by using an advanced detection algorithm the presence of TICs and/or CWAs are identified.

公开(公告)号：US20200033279A1

公开(公告)日：2020-01-30

申请号：US16447744

申请日：2019-06-20

Applicant: Design West Technologies, Inc.

Inventor： Ryan Hur ,  Ramesh Palanisamy ,  Jeffrey Kim ,  Gary Chen ,  Wei Li ,  Dennis Grudt

IPC: G01N27/04 ,  G08B21/14 ,  G08B25/10

Abstract: A wearable sensor badge utilizes a carbon nanotube (CNT) sensor array for selective sensing of chemicals from naturally diffused air or by sampling air using a pump/fan for higher sensitivity. An embedded microcontroller monitors the resistance of the sensing elements and by using an advanced detection algorithm the presence of TICs and/or CWAs are identified.