公开(公告)号：US4352353A

公开(公告)日：1982-10-05

申请号：US116028

申请日：1980-01-31

Applicant: Colin B. Bolton ,  Alan J. Miles ,  Robert E. Simpson

Inventor： Colin B. Bolton ,  Alan J. Miles ,  Robert E. Simpson

IPC: A62B18/04 ,  B64D10/00 ,  A61M15/00 ,  A62B18/00

CPC classification number: B64D10/00 ,  A62B18/04

Abstract: A respirator comprising a hood and visor adapted to protect a wearer against an undesirable substance and so closely to fit and envelop the wearer's head as to be susceptible of being worn underneath a helmet, the visor being formed to accommodate an oronasal mask and the respirator having purge gas supply means for maintaining a positive pressure within the respirator and for washing over the visor in visual regions thereof as well as breathing gas supply means.

Abstract translation: 一种呼吸器，其包括罩和遮阳板，其适于保护佩戴者免受不需要的物质的影响，并且如此紧密地适配和包围佩戴者的头部以便易于佩戴在头盔下方，所述遮阳板形成为容纳口鼻罩，并且所述呼吸器具有 净化气体供应装置，用于在呼吸器内保持正压并在其视觉区域以及呼吸气体供应装置上洗涤遮阳板。