Title:
SMOKE PREVENTING GAS MASK
Document Type and Number:
Japanese Patent JPS5825175
Kind Code:
A
Abstract:
A discharge valve is provided at the lower side of a smoke-proof, poison-proof respirator, and an opening part is provided at the front face thereof, a filter vessel being detachably fitted in this opening part. The filter vessel constitutes a cylinder having an outer end wall and an inner end wall, and intake openings are formed in both end walls. Within the filter vessel, in successive order from the outer end wall to the inner end wall, an electrostatic smoke-filtering material, an activated carbon fiber material, and a noble-metal catalyst are arranged. Outside gases are sucked in successively through these elements and, finally passing by an intake valve provided in the filter vessel inner end wall, enter the inner side of the respirator.
Inventors:
YOU BUNYOU
Application Number:
JP12361481A
Publication Date:
February 15, 1983
Filing Date:
August 07, 1981
Export Citation:
Assignee:
YOU BUNYOU
International Classes:
A62B18/02; A62B18/10; (IPC1-7): A62B18/02
Attorney, Agent or Firm:
Kiyoshi Inomata