发明名称 Ready use respirator
摘要 A respirator package comprises a half mask adapted to be worn over a wearer's nose and mouth and having a breathing opening with a filter positioned in the opening and a packing bag enclosing the filter and extending through the half mask having an end portion extending beyond each side of the mask which is closed but has a cut in marking forming a tear-off adjacent each end with a grasping element located adjacent the marking for tearing open the bag. The elements are connected to parts of a folded hood so that unfolding the hood tears the tear-offs.
申请公布号 US4473072(A) 申请公布日期 1984.09.25
申请号 US19820448334 申请日期 1982.12.09
申请人 DRAEGERWERK AKTIENGESELLSCHAFT 发明人 WALTHER, HANS-JOACHIM
分类号 A62B17/04;A62B23/02;(IPC1-7):A62B7/10 主分类号 A62B17/04
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