1
Itzchak Bar Yona, Gad Bar Sela: Forced ventilation filtration device. Eagle Military Gear Overseas, Pollock Vande Sande and Priddy, June 11, 1991: US05022900 (104 worldwide citation)

A compact, integral forced-ventilation personal respirator device for the breathing space in a gas mask, protective helmet or hood, or the like, comprises a housing including a connector for air-tight connection of the housing to the breathing space to be protected, an electric blower removably atta ...


2
Bar Yona Itzchak, Bar Sela Gad: Forced-ventilation filtration device.. Eagle Military Gear Overseas L, January 24, 1990: EP0352113-A2 (8 worldwide citation)

A compact, integral forced-ventilation filtration device for a closed space to be protected consisting of a housing (2) including means for air-tight connection (4) to the space to be protected, an electric blower removably attachable to the housing (2) and comprised of an electric motor (14) statio ...