公开(公告)号：US20010015205A1

公开(公告)日：2001-08-23

申请号：US09833576

申请日：2001-04-12

Applicant: 3M Innovative Properties Company

Inventor： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

IPC: A62B007/10 ,  A62B018/02 ,  A62B023/02

CPC classification number: A41D13/1161 ,  A41D13/1115 ,  A41D13/1138 ,  A41D13/1184 ,  A62B23/025

Abstract: Fold-flat personal respiratory protection devices are provided. The devices have a flat central portion having first and second edges, a flat first member joined to the first edge of the central portion through either a fold-line, seam, weld or bond, said fold, bond, weld or seam of the first member being substantially coextensive with said first edge of said central portion, and a flat second member joined to the second edge of the central portion through either a fold-line, seam, weld or bond, the fold, bond, weld or seam of the second member being substantially coextensive with said second edge of said central portion. At least one of the central portion and first and second members are formed from filter media. The device is capable of being folded flat for storage with the first and second members being in at least partial face-to-face contact with a common surface of the central portion and, during use, is capable of forming a cup-shaped air chamber over the nose and mouth of the wearer with the unjoined edges of the central portion and first and second members adapted to contact and be secured to the nose, cheeks and chin of the wearer. The outer boundary of the unjoined edges which are adapted to contact the nose, cheeks and chin of the wearer are less than the perimeter of the device in the flat folded storage state. Also provided are processes for preparing such devices.

Abstract translation: 提供折叠式个人呼吸防护装置。 所述装置具有平坦的中心部分，其具有第一和第二边缘，平坦的第一部件通过折叠线，接缝，焊接或粘合，所述第一和第二边缘的所述折叠，接合，焊接或接缝连接到中心部分的第一边缘 所述构件与所述中心部分的所述第一边缘基本上共同延伸，以及平坦的第二构件，其通过折叠线，接缝，焊接或接合处连接到所述中心部分的第二边缘，所述折叠，接合，焊接或接缝 第二构件与所述中心部分的所述第二边缘基本上共同延伸。 中心部分和第一和第二部件中的至少一个由过滤介质形成。 该装置能够被折叠成平坦的，用于存储，其中第一和第二构件与中心部分的共同表面至少部分地面对面接触，并且在使用期间能够形成杯形空气室 在中心部分的未接合的边缘处穿过穿着者的鼻子和嘴部，并且第一和第二构件适于接触并固定到穿着者的鼻子，脸颊和下巴。 适合接触穿戴者的鼻子，脸颊和下颚的非接合边缘的外边界小于平折折叠存储状态下的装置的周边。 还提供了用于制备这种装置的方法。

公开(公告)号：US20040237964A1

公开(公告)日：2004-12-02

申请号：US10798581

申请日：2004-03-11

Applicant: 3M Innovative Properties Company

Inventor： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

IPC: A62B007/10

CPC classification number: A62B23/025 ,  A41D13/11 ,  A41D13/1115

Abstract: Fold-flat personal respiratory protection devices that have a flat substantially rectangular central portion having first and second edges, at flat first member joined to the first edge of the central portion through either a fold-line, seam, weld or bond, said fold, bond, weld or seam of the first member being substantially coextensive with said first edge of said central portion, and a flat second member joined to the second edge of the central portion through either a fold-line, seam, weld or bond, the fold, bond, weld or seam of the second member being substantially coextensive with said second edge of said central portion. At least one of the central portion and first and second members are formed from filter media. The device is capable of being folded flat for storage with the first and second members being in at least partial face-to-face contact with a common surface of the central portion and, during use, is capable of forming a cup-shaped air chamber over the nose and mouth of the wearer with the unjoined edges of the central portion and first and second members adapted to contact and be secured to the nose, cheeks and chin of the wearer. The outer boundary of the unjoined edges which are adapted to contact the nose, cheeks and chin of the wearer are less than the perimeter of the device in the flat folded storage state. Also provided are process for preparing such devices.

Abstract translation: 折叠式个人呼吸保护装置，具有平坦的大致矩形的中心部分，具有第一和第二边缘，平坦的第一部件通过折线，接缝，焊接或接合连接到中心部分的第一边缘，所述折叠部分， 所述第一构件的接合，焊缝或接缝与所述中心部分的所述第一边缘基本上共同延伸;以及平坦的第二构件，其通过折叠线，接缝，焊接或接合连接到所述中心部分的第二边缘，所述折叠 ，所述第二构件的接合，焊接或接缝与所述中心部分的所述第二边缘基本上共同延伸。 中心部分和第一和第二部件中的至少一个由过滤介质形成。 该装置能够被折叠成平坦的，用于存储，其中第一和第二构件与中心部分的共同表面至少部分地面对面接触，并且在使用期间能够形成杯形空气室 在中心部分的未接合的边缘处穿过穿着者的鼻子和嘴部，并且第一和第二构件适于接触并固定到穿着者的鼻子，脸颊和下巴。 适合接触穿戴者的鼻子，脸颊和下颚的非接合边缘的外边界小于平折折叠存储状态下的装置的周边。 还提供了用于制备这种装置的过程。

公开(公告)号：US20030192546A1

公开(公告)日：2003-10-16

申请号：US10395975

申请日：2003-03-25

Applicant: 3M Innovative Properties Company

Inventor： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

IPC: A62B018/08

CPC classification number: A41D13/1161 ,  A41D13/1115 ,  A41D13/1138 ,  A41D13/1184 ,  A62B23/025

Abstract: Fold-flat personal respiratory protection devices are provided. The devices have a flat central portion having first and second edges, a flat first member joined to the first edge of the central portion through either a fold-line, seam, weld or bond, said fold, bond, weld or seam of the first member being substantially coextensive with said first edge of said central portion, and a flat second member joined to the second edge of the central portion through either a fold-line, seam, weld or bond, the fold, bond, weld or seam of the second member being substantially coextensive with said second edge of said central portion. At least one of the central portion and first and second members are formed from filter media. The device is capable of being folded flat for storage with the first and second members being in at least partial face-to-face contact with a common surface of the central portion and, during use, is capable of forming a cup-shaped air chamber over the nose and mouth of the wearer with the unjoined edges of the central portion and first and second members adapted to contact and be secured to the nose, cheeks and chin of the wearer. The outer boundary of the unjoined edges which are adapted to contact the nose, cheeks and chin of the wearer are less than the perimeter of the device in the flat folded storage state. Also provided are processes for preparing such devices.

公开(公告)号：US20030005934A1

公开(公告)日：2003-01-09

申请号：US10217072

申请日：2002-08-12

Applicant: 3M Innovative Properties Company

Inventor： Daniel A. Japuntich ,  Nicole V. McCullough ,  Jane K. Peterson ,  Nicholas R. Baumann ,  John W. Bryant ,  Christopher P. Henderson ,  Bruce E. Penning

IPC: A62B007/10 ,  A62B023/02

CPC classification number: A41D13/11 ,  A62B18/10 ,  A62B23/025

Abstract: A filtering face mask that covers at least the nose and mouth of a wearer and that includes an exhalation valve. The exhalation valve opens in response to increased pressure when the wearer exhales to allow the exhaled air to be rapidly purged from the mask interior. An exhale filter element may be placed in one of several locations in the exhale flow stream to remove contaminants from the exhaled air. The face mask is beneficial in that it provides comfort to the wearer by allowing warm, moist, high-CO2-content air to be rapidly evacuated from the mask interior through the valve and also protects the wearer from splash fluids and polluted air while at the same time protecting other persons or things from being exposed to contaminants in the exhale flow stream.

Abstract translation: 一种至少覆盖穿戴者的鼻子和嘴部并且包括呼气阀的过滤面罩。 呼气阀响应于穿着者呼气时增加的压力而打开，以允许呼出的空气从面罩内部迅速清除。 呼气过滤元件可以放置在呼出气流中的几个位置之一中以从呼出的空气中除去污染物。 面罩是有益的，因为它通过允许温暖，潮湿，高二氧化碳含量的空气通过阀门从面罩内部快速抽空，从而为穿着者提供舒适感，并且还可以在穿着者身上防止飞溅的液体和污染的空气 同时保护其他人或事物免受呼出气流中的污染物的侵害。