Back to results
US 2022/0088422 A1Published application
Respirator fit check sealing devices and methods
Assignee3M Innovative Properties Company
InventorsWilliam A. Mittelstadt, David M. Blomberg, Thomas W. Holmquist-Brown, Adam J. Cernohous, Michael J. Cowell
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a respiratory protection device that includes a valve assembly operable between an open configuration and a closed configuration. In some exemplary embodiments, the respiratory protection device includes an elastomeric seal, and a valve assembly and a breathing air source component are in sealing engagement with the elastomeric seal when the valve assembly is in the closed configuration.
Claims24
A respiratory protection device, comprising:
- a mask body defining a breathable air zone for a wearer and having a first receiver, the first receiver comprising a first elastomeric seal having a first end region and a second end region and defining a first channel configured to at least partially receive a first breathing air source component;
- a valve assembly operable between an open configuration and a closed configuration in which fluid communication through the first breathing air source component to the breathable air zone is prevented;
- wherein the first elastomeric seal is configured to sealingly engage with the first breathing air source component at the first end region of the first elastomeric seal, and
- wherein the valve assembly engages with the second end region of the first elastomeric seal when the valve assembly is in the closed configuration to prevent fluid communication between the first breathing air source component and the breathable air
1 more element
Dependencies are inferred from the claim text.