Invention Grant
US07947109B2 Powered air purifying respirator with battery passivation sensing/correction and method therefor
有权
具有电池钝化感应/校正功能的空气净化呼吸器及其方法
- Patent Title: Powered air purifying respirator with battery passivation sensing/correction and method therefor
- Patent Title (中): 具有电池钝化感应/校正功能的空气净化呼吸器及其方法
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Application No.: US11244578Application Date: 2005-10-06
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Publication No.: US07947109B2Publication Date: 2011-05-24
- Inventor: T. Mick Sayers , Desmond T. Curran
- Applicant: T. Mick Sayers , Desmond T. Curran
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Emily M. Van Vliet
- Main IPC: B01D46/46
- IPC: B01D46/46
Abstract:
A powered air purifying respirator and method for directing a forced flow of air to a wearer. A battery operatively powers a fan fluidly coupled with the air flow path which exhibits, in some circumstances, a passivation. A voltage delay sensing circuit, operatively coupled to the battery, provides an indication related to the passivation. A signal may provide an indication to a user of the passivation of the power source. A correction circuit may correct such passivation.
Public/Granted literature
- US20070079701A1 Powered air purifying respirator with battery passivation sensing/correction and method therefor Public/Granted day:2007-04-12
Information query
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