3m Innovative Properties Company

Audra A Wilson

Christopher P Henderson

John M Facer

Desmond T Curran

Reyad A Abdulqader

Ciaran G McMenamin

Philip G Martin

Thomas G Skulley

Erik J Johnson

Claudio Ponzio

Yonas Gebrewold

Daniel J Stepan

Francesco Lovo

Nicholas J Gloag

Brian Cormack

Dan Mattano

Ciaran G Mcmenamin

A respirator that includes a harness and a mask body that is air permeable. The mask body has a sinus region and a primary filtering region and comprises at least one nonwoven fibrous webs The sinus region of the mask body exhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Anti-fog respirator

A personal respiratory protection device comprising an upper panel, a central panel, and a lower panel, the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab being graspable in use to open the device.

Respirator tab

A respirator that includes a harness and a mask body that is air permeable. The mask body has a sinus region and a primary filtering region and at least one nonwoven fibrous web. The sinus region of the mask body exhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

A personal respiratory protection device () comprising an upper panel (), a central panel (), and a lower panel (), the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab () being graspable in use to open the device.

There is provided a respiratorhaving a harnessand a mask bodythat is air permeable. The mask bodyhas a sinus regionand a primary filtering regionand includes at least one nonwoven fibrous web, which web includes a layer of filter media. The sinus regionof the mask bodyexhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus regionwithout adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Maintenance-free anti-fog respirator

A respiratorthat includes a harnessand a mask bodythat is air permeable. The mask bodyhas a sinus regionand a primary filtering regionand comprises at least one nonwoven fibrous webs, which web includes a layer of filter media. The sinus regionof the mask bodyexhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus regionwithout adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Respiratory mask

A filtering face-piece respiratorthat includes a mask bodyand a harnessThe mask bodycontains a filtering structurethat is retained in position on the mask bodyby a support structurethat includes a longitudinally-movable, centrally-spaced, transversely-extending memberthat extends from a first sideof the structureto a second sidewithout being joined together by any longitudinally-extending members that hinder movement of the transversely extending memberin the longitudinal direction. The transversely-extending members converge towards each other at east sideof the mask bodyA filtering face-piece respiratorof this construction can allow the mask bodyto readily accommodate the motion of a person's jaw. Workers who use this filtering face-piece respirator may find it much easier to talk to other persons when working. A single mask size also may be able to properly fit to faces of various sizes.

Filtering face-piece respirator that has expandable mask body

A respiratory mask () that comprises a mask body () and a harness () that includes a carriage () and a strap (). The mask body () lacks a rigid insert, is non-elastomeric, and is adapted for fitting over a person's nose and mouth. The mask body () has a nose portion (), a chin portion (), first and second cheek portions (and), and an axis () that extends from the nose portion () to the chin portion (). The mask body () is constructed to deform such that the first and second cheek portions (and) move towards each other about the axis (). The carriage () is joined to the mask body (), and the strap () is joined to the carriage () for supporting the mask body () over a person's nose and mouth. When tension is applied to the strap () and an opposing force acts at the nose and chin portions of the mask body, the first and second cheek portions () exhibit movement about the axis () towards each other. The respirator mask is beneficial in that it is lightweight, easy to manufacture, and maintains a good fit to a person's face.

Non-elastomeric respirator mask that has deformable cheek portions

Bond pattern on a filtering face-piece respirator

An eye-wear article () for use with a respiratory mask () comprises a flat piece of transparent polymeric material providing a visor portion. The flat piece of polymeric material has shaped portions in a lower edge that fit over respective selected parts of the mask, and elongate tabs () that extend from each side and are inserted into respective guides () on the head harness () of the mask to cause the flat piece of polymeric material to adopt a curved configuration and locate the visor portion in front of the eyes of the wearer. The tabs () can slide in the guides () to permit the eye-wear article to be moved out of engagement with the mask and onto the top of the wearer's while the mask is being worn, without disturbing the position of the mask on the wearer's face and without affecting the respiratory protection provided by the mask.

Growing community of inventors

Gateshead, United Kingdom

Audra A Wilson