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    • 9. 发明授权
    • Respiratory protection device that has rapid threaded clean air source attachment
    • 具有快速螺纹清洁气源附件的呼吸防护装置
    • US07320722B2
    • 2008-01-22
    • US10977076
    • 2004-10-29
    • William A. MittelstadtJohn M. Pilgrim
    • William A. MittelstadtJohn M. Pilgrim
    • B01D46/00A62B9/04
    • A62B23/02A62B9/04Y10S55/33Y10S55/35
    • A personal respiratory protection device 10 that comprises a mask body 12 that has a structure 35 located on it for receiving a clean air supply source such as a filter cartridge 14. The clean air receiving structure 35 has a first threaded portion 34. The clean air supply source has a second threaded portion 58 that has a thread 60 that mates with a thread 36 of the first threaded portion 34. The first and second threaded portions 34 and 58 engage each other at a high thread pitch and include an integral détente. A stop prevents over-rotation of the clean air supply source 14 relative to the mask body 12 during the securement operation. The inventive device allows the clean air supply source 14 to be attached to the mask body 12 with minimal rotation and is sufficiently intuitive that users may only need one hand to attach and replace the clean air source component 14 without having to remove the respirator 10 from their face.
    • 一种个人呼吸保护装置10,其包括具有位于其上的结构35的面罩主体12,用于接收诸如滤筒14的清洁空气供应源。 清洁空气接收结构35具有第一螺纹部分34。 清洁空气供应源具有第二螺纹部分58,其具有与第一螺纹部分34的螺纹36配合的螺纹60。 第一和第二螺纹部分34和58以高螺纹节距彼此接合并且包括一体积的齿轮。 在固定操作期间,止动件防止清洁空气供应源14相对于面罩主体12的过度旋转。 本发明的装置允许清洁空气供应源14以最小的旋转附接到面罩主体12,并且足够直观,使得用户只需要一只手来附接和更换清洁空气源组件14,而不必将呼吸器10从 他们的脸