Title:
RESPIRATOR INCLUDING ADJUSTABLE STRAP AND METHOD OF FORMING SAME
Document Type and Number:
WIPO Patent Application WO/2020/053786
Kind Code:
A3
Abstract:
Various embodiments of a filtering face-piece respirator and a method of forming such respirator are disclosed. The filtering face-piece respirator includes a mask body having a filtering structure and an attachment region disposed on the mask body that includes a connected portion and an aperture disposed in the connected portion. Two or more layers of the filtering structure are connected together to form the connected portion. The filtering face-piece respirator further includes an adjustable strap having a first end and a second end, where the first end of the strap is threaded through the aperture of the attachment region such that the strap is connected to the attachment region. The aperture mechanically retains the strap.
Inventors:
DUFFY DEAN R (US)
Application Number:
PCT/IB2019/057659
Publication Date:
June 04, 2020
Filing Date:
September 11, 2019
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
A61M16/06; A41D13/11; A62B7/10; A62B18/02; A62B18/08; A62B23/02
Foreign References:
US20050051172A1 | 2005-03-10 | |||
US20150059773A1 | 2015-03-05 | |||
US6123077A | 2000-09-26 | |||
US20110271955A1 | 2011-11-10 | |||
US20080271739A1 | 2008-11-06 | |||
US4807619A | 1989-02-28 |
Attorney, Agent or Firm:
EHRICH, Dena M., et al. (US)
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