1
Robert D Lewis: Face mask seal. A T O, September 11, 1979: US04167185 (151 worldwide citation)

A resiliently flexible sealing element, conformable to the face of a wearer, in the form of a re-entrant flap is hingedly joined to and supported by a mask body in a spaced relationship thereto. The sealing element extends parametrically around the open side of the mask body and in selected location ...


2
James E P Davis: Face mask seal. Roger A Marrs, May 19, 1987: US04665570 (132 worldwide citation)

A conformal seal carried on a face mask is disclosed herein which is mounted about the edge marginal peripheral region of a rigid shell intended to be placed over the nose and mouth areas of a user. The seal includes an endless toroid made with a pliable membrane preferably filled with a deformable ...


3
Robin McWilliams: Head-up display unit. Draeger Safety, DLA Piper, December 27, 2011: US08082922 (1 worldwide citation)

A head-up display unit 10 comprises a microprocessor 30 which controls four light-emitting diodes (LEDs) which constitute the head-up display 20. The microprocessor 30 and LEDs 20 are powered by a battery 40 and a switch 50 is in series with the battery. A temporary store 60 in the form of a capacit ...


4
Mcwilliams Robin: Improved head-up display unit. Draeger Safety, August 6, 2008: EP1953081-A1 (1 worldwide citation)

A head-up display unit 10 comprises a microprocessor 30 which controls four light-emitting diodes (LEDs) which constitute the head-up display 20. The microprocessor 30 and LEDs 20 are powered by a battery 40 and a switch 50 is in series with the battery. A temporary store 60 in the form of a capacit ...


5
Richard H Koehler: Face mask seal for use with respirator devices and surgical facemasks, having an anatomically defined geometry conforming to critical fit zones of human facial anatomy, and capable of being actively custom fitted to the users face. Knobbe Martens Olson & Bear, October 18, 2016: US09468782

A face seal device for filtering face piece respirators is disclosed. The face seal device is designed to correct inner face seal leakage of particulate material using compensatory accentuations at locations along an inner perimeter based on specific details of a user's facial human anatomy known to ...


6
Robin McWilliams: Head-up display unit. Draeger Safety, Banner & Witcoff, August 7, 2008: US20080185001-A1

A head-up display unit 10 comprises a microprocessor 30 which controls four light-emitting diodes (LEDs) which constitute the head-up display 20. The microprocessor 30 and LEDs 20 are powered by a battery 40 and a switch 50 is in series with the battery. A temporary store 60 in the form of a capacit ...


7
Raul Duarte: Portable air-purifying system. Raul Duarte, October 18, 2007: US20070240719-A1

A respirator includes a face mask and a housing assembly coupled in flow communication to the face mask. The face mask includes an inlet opening and a seal. The inlet opening is configured to channel treated air into the face mask. The face mask seal is configured to prevent contaminants and untreat ...


8
FACE MASK SEAL FOR USE WITH RESPIRATOR DEVICES AND SURGICAL FACEMASKS, HAVING AN ANATOMICALLY DEFINED GEOMETRY CONFORMING TO CRITICAL FIT ZONES OF HUMAN FACIAL ANATOMY, AND CAPABLE OF BEING ACTIVELY CUSTOM FITTED TO THE USERS FACE. February 12, 2015: US20150040910-A1

The present disclosure is a face seal (FS) device for filtering face piece respirators (FFR) of all types, that corrects inner face seal leakage (FSIL) of particulate material that occurs due to well documented failures in FS designs of the prior art. The present disclosure differs from those of the ...


9


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