1
James E Springett, Leonard W Barrett: Respirator having thermochromic fit-indicating seal. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Karl G Hanson, April 8, 1997: US05617849 (84 worldwide citation)

Respirator 10 has a respirator body 11 that is configured to fit over the nose and mouth of a wearer. A thermochromic material 18 is positioned on the respirator body 11 such that the thermochromic material 18 makes thermal contact with the wearer's face when the respirator 10 is worn. The contact c ...


2
Springett James E, Barrett Leonard W: Respirateur a joint indicateur dajustage thermochromique, Respirator having thermochromic fit-indicating seal. Minnesota Mining And Manufacturing Company, Minnesota Mining And Manufacturing Company, SMART & BIGGAR, March 20, 1997: CA2229579

Respirator (10) has a respirator body (11) that is con-figured to fit over the nose and mouth of a wearer. A ther-mochromic material (18) is positioned on the respirator body (11) such that the thermochromic material (18) makes thermal contact with the wearer's face when the respirator (10) is worn. ...


3
Springett James E, Barrett Leonard W: Respirator having thermochromic fit-indicating seal. Minnesota Mining And Manufacturing Company, sHANSON Karl G, March 20, 1997: WO/1997/010027

Respirator (10) has a respirator body (11) that is configured to fit over the nose and mouth of a wearer. A thermochromic material (18) is positioned on the respirator body (11) such that the thermochromic material (18) makes thermal contact with the wearer's face when the respirator (10) is worn. T ...


4
Springett James E, Barrett Leonard W: Respirator having thermochromic fit-indicating seal. Minnesota Mining & Mfg, July 29, 1998: EP0854743-A1

Respirator (10) has a respirator body (11) that is configured to fit over the nose and mouth of a wearer. A thermochromic material (18) is positioned on the respirator body (11) such that the thermochromic material (18) makes thermal contact with the wearer's face when the respirator (10) is worn. T ...