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Filtering face-piece respirator having buckles integral to the mask body support structure

A supporting structure and filtering technology, which can be used in the direction of respiratory filters, respiratory protective containers, respiratory masks, etc., and can solve the problems of separate manufacturing

Inactive Publication Date: 2010-10-06
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A specific disadvantage with conventional filtering face-piece respirators is that the buckle must be manufactured separately from the mask body's forming layer and filter media
Additionally, an additional manufacturing step is required to secure the buckle to the respirator

Method used

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  • Filtering face-piece respirator having buckles integral to the mask body support structure
  • Filtering face-piece respirator having buckles integral to the mask body support structure
  • Filtering face-piece respirator having buckles integral to the mask body support structure

Examples

Experimental program
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Effect test

example

[0063] Manufacture of respirator support structures

[0064] Samples of the respirator support structure were prepared using standard injection molding methods. Prepared at the tool manufacturer with Figure 1-3 The geometry of the support structure shown matches the single-cavity male-female mold. In the relaxed state, or when the support structure is still on the mold, the support structure measures about 115 mm from top to bottom and about 120 mm from left to right. Measurements are taken along the line between the highest and lowest points on the perimeter and the outer edges of the side perimeter members, respectively, with the respirator in an unstressed condition. The target thickness of the members making up the support structure is 2.5 mm. The laterally extending members are shaped to have a trapezoidal cross-section to facilitate removal of the support structure from the mould. The transversely extending member has a cross-sectional area of ​​about 2 to 5mm 2 ...

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PUM

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Abstract

A filtering face-piece respirator 10 that includes a mask body 12 and a harness 14 and a support structure 16. The support structure 16 has a perimeter 20 that includes buckles 40 that are integrally joined to the perimeter 20. A mask body of this construction avoids the need to separately make the buckles and the mask body support structure and avoids an additional step in the assembly of the respirator.

Description

[0001] The present invention relates to filtering face-piece respirators having a mask body that enables strap adjustment buckles to be fabricated integrally with the mask body support structure. Background technique [0002] Respirators are typically worn over a user's airways for at least one of two common purposes: (1) to prevent impurities or contaminants from entering the wearer's airways; and (2) to protect other people or things from contact with the wearer Exhaled pathogens and other pollutants. In the first case, the respirator is worn in an environment where there are particles in the air that are harmful to the wearer, such as an auto body shop. In the second case, respirators are worn in environments where there is a potential for contamination of other people or things, such as operating theaters or clean rooms. [0003] Some respirators are classified as "filtering masks" because the mask body itself acts as a filter. Use a rubber or elastomeric mask body that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B7/10
CPCA62B23/025A62B18/084A62B7/10A62B9/04A62B18/02A62B23/02
Inventor 丹尼尔·J·斯特潘菲利普·G·马丁约纳斯·加布雷沃尔德弗朗切斯科·洛沃达恩·马塔诺克劳迪奥·蓬奇奥
Owner 3M INNOVATIVE PROPERTIES CO