Title:
電池の不動態化を感知/修正する動力式空気清浄化呼吸器具及びそのための方法
Document Type and Number:
Japanese Patent JP2009511118
Kind Code:
A
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.
Inventors:
T. Mick Thayers
Desmond Thi Kallan
Desmond Thi Kallan
Application Number:
JP2008534581A
Publication Date:
March 19, 2009
Filing Date:
October 02, 2006
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
H01M10/48; A62B17/00
Attorney, Agent or Firm:
Hiroshi Yamazaki
Mitsuo Tanaka
Yasushi Ohata
Tadataka Omori
Mitsuo Tanaka
Yasushi Ohata
Tadataka Omori