Personal Respiratory Protection Device

Patent metadata

Field	Value
Publication number	US-2016199676-A1
Application number	US-201414912248-A
Country	US
Kind code	A1
Filing date	Aug 13, 2014
Priority date	Aug 20, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

The present invention relates to a personal respiratory protection device, in particular, such a device comprising a respirator body having a periphery, a filter media, forming at least part of the respirator body, and a gasket, the gasket being located at the periphery and extending along at least a portion of its length.

First claim

1 . Personal respiratory protection device for use by a wearer, comprising:
a respirator body having a periphery, a filter media, forming at least part of the respirator body, and a gasket, the gasket being located at the periphery and extending along at least a portion of its length, wherein the gasket comprises a sheet-like flexible elastomeric material and is contoured, the contour comprising a ridge that projects away from the periphery.

2 . Device of claim 1 , wherein the ridge is deformable.

3 . Device of claim 1 , wherein the ridge comprises regions of increased thickness of the flexible elastomeric material.

4 . Device of claim 2 , wherein the ridge forms a cushioning means for the gasket.

5 . Device of claim 1 , wherein the gasket comprises an indent disposed on the ridge, and the indent is adapted to accommodate the nose of a wearer.

6 . Device of claim 1 , further comprising headband means to secure the personal respiratory device onto a wearer such that the gasket flexes and conforms to the facial features of the wearer.

7 . Device of claim 6 , wherein the headband means are adjustable, such that when the adjustable headband means are adjusted the gasket flexes and conforms to the facial features of the wearer.

8 . Device of claim 1 , wherein the gasket fits substantially flush against the nose and cheeks of a wearer.

9 . Device of claim 1 , wherein the gasket extends along the entire periphery of the respirator body.

10 . Device of claim 9 , wherein the ridge extends along only a portion of the gasket.

11 . Device of claim 9 , wherein the gasket fits substantially flush against the nose, cheeks and chin of a wearer.

12 . Device of claim 1 , wherein the ridge is formed in the region of the gasket that contacts the nose of a wearer during use.

13 . Device of claim 1 , wherein the contour is substantially V-shaped.

14 . Device of claim 1 , wherein the ridge is formed from a local increase in thickness of elastomeric material.

15 . Device of claim 12 , wherein the ridge varies in thickness along its length.

16 . Device of claim 1 , wherein the ridge is formed from a fold in the elastomeric material.

17 . Device of claim 1 , wherein the gasket comprises a thermoplastic elastomer (TPE).

18 . (canceled)

19 . Device of claim 1 , wherein the filter media is in the form of a cover, and the respirator body comprises an inner cup shaped support and the filter media is overlaid on the inner cup shaped support.

20 . Device of claim 19 , wherein the cover and the inner cup shaped support are joined at the periphery of the respirator body.

21 - 22 . (canceled)

23 . Device of claim 1 , wherein the gasket is provided with an aperture adapted to accommodate the nose and mouth of a wearer.

Assignees

• 3M Innovative Properties Co

Inventors

• Walker Garry J
• Henderson Christopher P

Classifications

• A62B23/025 Primary

  the filter having substantially the shape of a mask (surgical face masks A41D13/11) · CPC title

• A41D13/1176

  forming a complete seal at the edges of the mask · CPC title

• A41D13/1161

  Means for fastening to the user's head · CPC title

• A62B18/084

  Means for fastening gas-masks to heads or helmets · CPC title

• A62B18/025 Primary

  Halfmasks (A62B23/02 takes precedence; surgical face masks A41D13/11) · CPC title