1
Eric W Starr, John R Pujol, Andrew Serowski: Respiratory mask having a vertically adjustable spacer element that limits seal deformation on a wearers face. Respironics, Reed Smith Shaw & McClay, November 5, 1996: US05570689 (208 worldwide citation)

A respiratory mask including a flexible seal member that is formed to receive nasal and/or oral portions of a user's face. The flexible seal member is adapted to resiliently deform against the facial structure of the user to form a seal therewith when the mask is secured to the user's head by suitab ...


2
John R Starr, Eric W Starr, William Kaigler, John R Pujol, Pat Devinney, Andrew Serowski: Automatic safety valve and diffuser for nasal and/or oral gas delivery mask. Respironics, Reed Smith Shaw & McClay, August 8, 1995: US05438981 (184 worldwide citation)

A self-regulating valve device adapted for use with respiratory equipment of a type which produces a pressurized flow of breathing gas. The valve device affords automatic access to the ambient atmosphere in the event of respiratory equipment malfunction and includes a primary inlet, a secondary inle ...