发明名称 RESPIRATOR FILTER PROTECTIVE COVER
摘要 The present invention is a protective spark cover for covering the exterior face of a filter for use with a respirator or the like. During metal welding, smelting and cutting operations and similar activities creating sparks, splatter and the like, exposed respirator filters may be perforated and made unusable. The present invention protective spark cover provides a removable cover to protect such filter elements from welding and spark damage and other similar mechanical damage. The invention is essentially a screen cover to protect the filter element and a frame to hold the screen in place over the filter.
申请公布号 CA2273765(A1) 申请公布日期 2000.03.03
申请号 CA19992273765 申请日期 1999.06.09
申请人 PARMELEE INDUSTRIES 发明人 METZGER, KARL D.
分类号 A62B23/02;(IPC1-7):A62B7/10;A62B9/00 主分类号 A62B23/02
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