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flat fold respirator

A flat-fold, crease-line technique used in personal respiratory protection to solve problems such as difficult reorientation of panels

Active Publication Date: 2020-01-14
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Three-panel panel respirators are also known to have a concave position for the lower panel, making it difficult for the wearer to reorient the panels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The invention will now be described, by way of example only, in which:

[0034] figure 1 is a front view of the personal respiratory protection device of the present invention in its flat-folded configuration;

[0035] figure 2 yes figure 1 Rear view of the personal respiratory protective device in its flat-folded configuration;

[0036] image 3 is along figure 2 Intercepted by line III-III in figure 1 Cross-sectional view of the personal respiratory protective device shown in ;

[0037] Figure 4 yes figure 1 A front view of the personal respiratory protective device of , showing the personal respiratory protective device in its open configuration;

[0038] Figure 5 yes figure 1 A side view of the personal respiratory protective device of , shown in the ready-to-use configuration;

[0039] Figure 6 yes figure 1 A rear view of the personal respiratory protective device of , shown in its open configuration;

[0040] Figure 7 yes figure 1 A cross-se...

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PUM

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Abstract

The present invention discloses a personal respiratory protective device (10), which comprises an upper panel (18), a central panel (16) and a lower panel (20), the central panel (16) passes through a first folding part (36), a The seam, weld (76) or bond and the second fold (36), seam, weld (76) or bond are separated from each of the upper panel (18) and the lower panel such that The device can be folded flat along the first fold (36), seam, weld (76) or bond and the second fold (36), seam, weld (76) or bond for storage and capable of being opened in use to form a cup-shaped air chamber over the wearer's nose and mouth, wherein the lower panel (20) comprises a rigid sheet (40) with longitudinal folds Crease lines wherein the rigid sheet (40) is folded about longitudinal crease lines when the device is in use.

Description

technical field [0001] The present invention relates to personal respiratory protection devices, known as respirators or masks, which are capable of being folded flat during storage and forming cup-shaped air chambers over the mouth and nose of the wearer during use. Background technique [0002] Filtering respirators or face masks are used in a wide variety of applications when it is desired to protect a person's respiratory system from inhalation of airborne particles or unpleasant or noxious gases. Generally, such respirators or masks can come in a variety of forms, but the two most common forms are a molded cup form or a flat-fold form. The advantage of the flat-fold format is that it can be carried in the wearer's pocket until needed, and fold flat again between wears to keep the interior clean. [0003] Such respiratory devices include, for example, respirators, medical masks, cleanroom masks, face shields, dust masks, respirators and various other face coverings. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A41D13/11A62B23/02
CPCA41D13/1115A41D13/113A62B18/10A62B23/025A41D13/1161A41D13/11A41D13/1138
Inventor 雷亚德·A·阿卜杜勒卡迪尔詹姆斯·J·梅马克·A·J·费尔南德斯丹尼尔·P·詹金斯
Owner 3M INNOVATIVE PROPERTIES CO
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