1
David Cook, Raymond Odell, Ian T Petherbridge, Pierre Legare, Robert P Lapointe, Kenneth J Krepel, David M Blomberg, Derek S Baker, James R Betz, Thomas I Insley: Apparatus and method for breathing apparatus component coupling. 3M Innovative Properties Company, Karl G Hanson, James L Young, June 10, 2003: US06575165 (76 worldwide citation)

The present invention relates to a fan-forced positive pressure breathing apparatus commonly known as a Powered Air Purifying Respirators (PAPR) system, and specifically concerns the connecting of the breathing components of such equipment. The invention is a method and apparatus for rapid engagemen ...


2
Desmond T Curran, Peter D Lee, Richard D Williams, Peter N Yates, Derek S Baker: Supplied air helmet having face seal with differentiated permeability. 3M Innovative Properties Company, Karl G Hanson, April 3, 2007: US07197774 (15 worldwide citation)

A supplied air helmet 10 comprises a visor 14 and a face seal 12 that is secured to the visor. The face seal 12 includes a sealing member 18 and a frame member 16. The sealing member 18 extends radially inward from the frame member 16 and has first and second regions of permeability 20 and 22. The s ...


3
Derek S Baker, Brandon H Harmon: Respiratory system and method of use. 3M Innovative Properties, February 12, 2008: US07328700 (3 worldwide citation)

A respiratory protection circuit of the type having an air flow regulator disposed in an air flow path between an air supply and a respirator is improved by including an air flow splitter and a bi-directional valve. The air flow splitter is disposed in the air flow path upstream from the air flow re ...


4
Derek S Baker, Brandon H Harmon: Respiratory system and method of use. 3M Innovative Properties Company, September 9, 2004: US20040173215-A1

A respiratory protection circuit of the type having an air flow regulator disposed in an air flow path between an air supply and a respirator is improved by including an air flow splitter and a bi-directional valve. The air flow splitter is disposed in the air flow path upstream from the air flow re ...


5
Desmond T Curran, Peter D Lee, Richard D Williams, Peter N Yates, Derek S Baker: Supplied air helmet having face seal with differentiated permeability. 3m Innovative Properties Company, May 18, 2006: US20060101555-A1

A supplied air helmet 10 comprises a visor 14 and a face seal 12 that is secured to the visor. The face seal 12 includes a sealing member 18 and a frame member 16. The sealing member 18 extends radially inward from the frame member 16 and has first and second regions of permeability 20 and 22. The s ...