EP 0420812 B1 19930616 - PORTABLE BREATHING PROTECTION APPARATUS
Title (en)
PORTABLE BREATHING PROTECTION APPARATUS
Publication
Application
Priority
CH 354189 A 19890929
Abstract (en)
[origin: JPH03121080A] PURPOSE: To prevent a water drop from entering a housing and easily handle a device by fitting a filter to the housing, and providing a channel means for connecting a blower for drawing air into the housing and the filter to an inlet opening. CONSTITUTION: A commercial air filter 2 having an inlet 2b at the bottom and an outlet 2a at the top is removably installed on an arm 31 of a housing 3 of a pespiration protection device 1. A blower is provided adjacent to a blower shell 3m of the housing 3, and a battery pack 6 is disposed on a main body 3b to supply power for a motor 5a. The air passes through a space 8a to reach an inlet opening 3e from both sides of the filter. The air flowing through the blower 5 is increased in pressure to flow in a channel 4 through a channel 5b, pass through the inside of the filter 2 from the inlet 2b and flow through the outlet 2a. Thus, the inlet opening is covered with a path adjacent to the filter to prevent entering of water drop or the like.
IPC 1-7
IPC 8 full level
A62B 7/10 (2006.01); A62B 18/00 (2006.01)
CPC (source: EP US)
A62B 18/006 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0420812 A1 19910403; EP 0420812 B1 19930616; AU 631458 B2 19921126; AU 6328790 A 19910411; CH 679122 A5 19911231; DE 59001778 D1 19930722; HU 207232 B 19930329; HU 906272 D0 19910328; HU T55246 A 19910528; JP H03121080 A 19910523; US 5065745 A 19911119
DOCDB simple family (application)
EP 90810722 A 19900920; AU 6328790 A 19900927; CH 354189 A 19890929; DE 59001778 T 19900920; HU 627290 A 19900928; JP 25879690 A 19900927; US 58459390 A 19900919